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help / color / mirror / Atom feed[PATCH 3/5] Move processing of NULLs from BRIN support functions
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* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/5] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index 25ae02a999..8c94252567 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -177,7 +180,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -241,31 +243,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -358,6 +336,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -561,69 +540,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -771,7 +712,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -800,25 +740,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1597,6 +1520,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1650,3 +1606,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.21.3
--2llqbgqyhgtvqz5p
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200513.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/5] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index 25ae02a999..8c94252567 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -177,7 +180,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -241,31 +243,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -358,6 +336,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -561,69 +540,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -771,7 +712,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -800,25 +740,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1597,6 +1520,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1650,3 +1606,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.21.1
--mdnsfkfco6eh7s2p
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200402.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 03/10] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--6k3bcoookz7x4sns
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200911.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--vurodj3csurzcvv3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200906.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/5] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index 25ae02a999..8c94252567 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -177,7 +180,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -241,31 +243,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -358,6 +336,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -561,69 +540,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -771,7 +712,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -800,25 +740,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1597,6 +1520,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1650,3 +1606,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--23ba6kc72aujkita
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200703.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/6] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--2wz2lexbyaxcz4wc
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200911b.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* [PATCH 3/8] Move processing of NULLs from BRIN support functions
@ 2020-04-02 00:56 Tomas Vondra <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Tomas Vondra @ 2020-04-02 00:56 UTC (permalink / raw)
---
src/backend/access/brin/brin.c | 260 ++++++++++++++---------
src/backend/access/brin/brin_inclusion.c | 44 +---
src/backend/access/brin/brin_minmax.c | 41 +---
src/include/access/brin_internal.h | 3 +
4 files changed, 169 insertions(+), 179 deletions(-)
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c
index caf7b62688..a9c44c0b82 100644
--- a/src/backend/access/brin/brin.c
+++ b/src/backend/access/brin/brin.c
@@ -35,6 +35,7 @@
#include "storage/freespace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/datum.h"
#include "utils/index_selfuncs.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@@ -77,7 +78,9 @@ static void form_and_insert_tuple(BrinBuildState *state);
static void union_tuples(BrinDesc *bdesc, BrinMemTuple *a,
BrinTuple *b);
static void brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy);
-
+static bool add_values_to_range(Relation idxRel, BrinDesc *bdesc,
+ BrinMemTuple *dtup, Datum *values, bool *nulls);
+static bool check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys);
/*
* BRIN handler function: return IndexAmRoutine with access method parameters
@@ -178,7 +181,6 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
OffsetNumber off;
BrinTuple *brtup;
BrinMemTuple *dtup;
- int keyno;
CHECK_FOR_INTERRUPTS();
@@ -242,31 +244,7 @@ brininsert(Relation idxRel, Datum *values, bool *nulls,
dtup = brin_deform_tuple(bdesc, brtup, NULL);
- /*
- * Compare the key values of the new tuple to the stored index values;
- * our deformed tuple will get updated if the new tuple doesn't fit
- * the original range (note this means we can't break out of the loop
- * early). Make a note of whether this happens, so that we know to
- * insert the modified tuple later.
- */
- for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
- {
- Datum result;
- BrinValues *bval;
- FmgrInfo *addValue;
-
- bval = &dtup->bt_columns[keyno];
- addValue = index_getprocinfo(idxRel, keyno + 1,
- BRIN_PROCNUM_ADDVALUE);
- result = FunctionCall4Coll(addValue,
- idxRel->rd_indcollation[keyno],
- PointerGetDatum(bdesc),
- PointerGetDatum(bval),
- values[keyno],
- nulls[keyno]);
- /* if that returned true, we need to insert the updated tuple */
- need_insert |= DatumGetBool(result);
- }
+ need_insert = add_values_to_range(idxRel, bdesc, dtup, values, nulls);
if (!need_insert)
{
@@ -359,6 +337,7 @@ brinbeginscan(Relation r, int nkeys, int norderbys)
return scan;
}
+
/*
* Execute the index scan.
*
@@ -562,69 +541,31 @@ bringetbitmap(IndexScanDesc scan, TIDBitmap *tbm)
(nkeys[attno - 1] <= scan->numberOfKeys));
/*
- * First check if there are any IS [NOT] NULL scan keys, and
- * if we're violating them. In that case we can terminate
- * early, without invoking the support function.
+ * First check if there are any IS [NOT] NULL scan keys,
+ * and if we're violating them. In that case we can
+ * terminate early, without invoking the support function.
*
* As there may be more keys, we can only detemine mismatch
* within this loop.
*/
- for (keyno = 0; (keyno < nnullkeys[attno - 1]); keyno++)
+ if (bdesc->bd_info[attno - 1]->oi_regular_nulls &&
+ !check_null_keys(bval, nullkeys[attno - 1],
+ nnullkeys[attno - 1]))
{
- ScanKey key = nullkeys[attno - 1][keyno];
-
- Assert(key->sk_attno == bval->bv_attno);
-
- /* interrupt the loop as soon as we find a mismatch */
- if (!addrange)
- break;
-
- /* handle IS NULL/IS NOT NULL tests */
- if (key->sk_flags & SK_ISNULL)
- {
- /* IS NULL scan key, but range has no NULLs */
- if (key->sk_flags & SK_SEARCHNULL)
- {
- if (!bval->bv_allnulls && !bval->bv_hasnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * For IS NOT NULL, we can only skip ranges that are
- * known to have only nulls.
- */
- if (key->sk_flags & SK_SEARCHNOTNULL)
- {
- if (bval->bv_allnulls)
- addrange = false;
-
- continue;
- }
-
- /*
- * Neither IS NULL nor IS NOT NULL was used; assume all
- * indexable operators are strict and thus return false
- * with NULL value in the scan key.
- */
- addrange = false;
- }
- }
-
- /*
- * If any of the IS [NOT] NULL keys failed, the page range as
- * a whole can't pass. So terminate the loop.
- */
- if (!addrange)
+ /*
+ * If any of the IS [NOT] NULL keys failed, the page
+ * range as a whole can't pass. So terminate the loop.
+ */
+ addrange = false;
break;
+ }
/*
- * So either there are no IS [NOT] NULL keys, or all passed. If
- * there are no regular scan keys, we're done - the page range
- * matches. If there are regular keys, but the page range is
- * marked as 'all nulls' it can't possibly pass (we're assuming
- * the operators are strict).
+ * So either there are no IS [NOT] NULL keys, or all passed.
+ * If there are no regular scan keys, we're done - the page
+ * range matches. If there are regular keys, but the page
+ * range is marked as 'all nulls' it can't possibly pass
+ * (we're assuming the operators are strict).
*/
/* No regular scan keys - page range as a whole passes. */
@@ -772,7 +713,6 @@ brinbuildCallback(Relation index,
{
BrinBuildState *state = (BrinBuildState *) brstate;
BlockNumber thisblock;
- int i;
thisblock = ItemPointerGetBlockNumber(tid);
@@ -801,25 +741,8 @@ brinbuildCallback(Relation index,
}
/* Accumulate the current tuple into the running state */
- for (i = 0; i < state->bs_bdesc->bd_tupdesc->natts; i++)
- {
- FmgrInfo *addValue;
- BrinValues *col;
- Form_pg_attribute attr = TupleDescAttr(state->bs_bdesc->bd_tupdesc, i);
-
- col = &state->bs_dtuple->bt_columns[i];
- addValue = index_getprocinfo(index, i + 1,
- BRIN_PROCNUM_ADDVALUE);
-
- /*
- * Update dtuple state, if and as necessary.
- */
- FunctionCall4Coll(addValue,
- attr->attcollation,
- PointerGetDatum(state->bs_bdesc),
- PointerGetDatum(col),
- values[i], isnull[i]);
- }
+ (void) add_values_to_range(index, state->bs_bdesc, state->bs_dtuple,
+ values, isnull);
}
/*
@@ -1598,6 +1521,39 @@ union_tuples(BrinDesc *bdesc, BrinMemTuple *a, BrinTuple *b)
FmgrInfo *unionFn;
BrinValues *col_a = &a->bt_columns[keyno];
BrinValues *col_b = &db->bt_columns[keyno];
+ BrinOpcInfo *opcinfo = bdesc->bd_info[keyno];
+
+ if (opcinfo->oi_regular_nulls)
+ {
+ /* Adjust "hasnulls". */
+ if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
+ col_a->bv_hasnulls = true;
+
+ /* If there are no values in B, there's nothing left to do. */
+ if (col_b->bv_allnulls)
+ continue;
+
+ /*
+ * Adjust "allnulls". If A doesn't have values, just copy the
+ * values from B into A, and we're done. We cannot run the
+ * operators in this case, because values in A might contain
+ * garbage. Note we already established that B contains values.
+ */
+ if (col_a->bv_allnulls)
+ {
+ int i;
+
+ col_a->bv_allnulls = false;
+
+ for (i = 0; i < opcinfo->oi_nstored; i++)
+ col_a->bv_values[i] =
+ datumCopy(col_b->bv_values[i],
+ opcinfo->oi_typcache[i]->typbyval,
+ opcinfo->oi_typcache[i]->typlen);
+
+ continue;
+ }
+ }
unionFn = index_getprocinfo(bdesc->bd_index, keyno + 1,
BRIN_PROCNUM_UNION);
@@ -1651,3 +1607,103 @@ brin_vacuum_scan(Relation idxrel, BufferAccessStrategy strategy)
*/
FreeSpaceMapVacuum(idxrel);
}
+
+static bool
+add_values_to_range(Relation idxRel, BrinDesc *bdesc, BrinMemTuple *dtup,
+ Datum *values, bool *nulls)
+{
+ int keyno;
+ bool modified = false;
+
+ /*
+ * Compare the key values of the new tuple to the stored index values;
+ * our deformed tuple will get updated if the new tuple doesn't fit
+ * the original range (note this means we can't break out of the loop
+ * early). Make a note of whether this happens, so that we know to
+ * insert the modified tuple later.
+ */
+ for (keyno = 0; keyno < bdesc->bd_tupdesc->natts; keyno++)
+ {
+ Datum result;
+ BrinValues *bval;
+ FmgrInfo *addValue;
+
+ bval = &dtup->bt_columns[keyno];
+
+ if (bdesc->bd_info[keyno]->oi_regular_nulls && nulls[keyno])
+ {
+ /*
+ * If the new value is null, we record that we saw it if it's
+ * the first one; otherwise, there's nothing to do.
+ */
+ if (!bval->bv_hasnulls)
+ {
+ bval->bv_hasnulls = true;
+ modified = true;
+ }
+
+ continue;
+ }
+
+ addValue = index_getprocinfo(idxRel, keyno + 1,
+ BRIN_PROCNUM_ADDVALUE);
+ result = FunctionCall4Coll(addValue,
+ idxRel->rd_indcollation[keyno],
+ PointerGetDatum(bdesc),
+ PointerGetDatum(bval),
+ values[keyno],
+ nulls[keyno]);
+ /* if that returned true, we need to insert the updated tuple */
+ modified |= DatumGetBool(result);
+ }
+
+ return modified;
+}
+
+static bool
+check_null_keys(BrinValues *bval, ScanKey *nullkeys, int nnullkeys)
+{
+ int keyno;
+
+ /*
+ * First check if there are any IS [NOT] NULL scan keys, and if we're
+ * violating them.
+ */
+ for (keyno = 0; keyno < nnullkeys; keyno++)
+ {
+ ScanKey key = nullkeys[keyno];
+
+ Assert(key->sk_attno == bval->bv_attno);
+
+ /* Handle only IS NULL/IS NOT NULL tests */
+ if (!(key->sk_flags & SK_ISNULL))
+ continue;
+
+ if (key->sk_flags & SK_SEARCHNULL)
+ {
+ /* IS NULL scan key, but range has no NULLs */
+ if (!bval->bv_allnulls && !bval->bv_hasnulls)
+ return false;
+ }
+ else if (key->sk_flags & SK_SEARCHNOTNULL)
+ {
+ /*
+ * For IS NOT NULL, we can only skip ranges that are known to
+ * have only nulls.
+ */
+ if (bval->bv_allnulls)
+ return false;
+ }
+ else
+ {
+ /*
+ * Neither IS NULL nor IS NOT NULL was used; assume all indexable
+ * operators are strict and thus return false with NULL value in
+ * the scan key.
+ */
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/src/backend/access/brin/brin_inclusion.c b/src/backend/access/brin/brin_inclusion.c
index 22edc6b46f..59503b6f68 100644
--- a/src/backend/access/brin/brin_inclusion.c
+++ b/src/backend/access/brin/brin_inclusion.c
@@ -110,6 +110,7 @@ brin_inclusion_opcinfo(PG_FUNCTION_ARGS)
*/
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(3)) + sizeof(InclusionOpaque));
result->oi_nstored = 3;
+ result->oi_regular_nulls = true;
result->oi_opaque = (InclusionOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(3));
@@ -141,7 +142,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_BOOL(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_BOOL(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *finfo;
Datum result;
@@ -149,18 +150,7 @@ brin_inclusion_add_value(PG_FUNCTION_ARGS)
AttrNumber attno;
Form_pg_attribute attr;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -510,37 +500,11 @@ brin_inclusion_union(PG_FUNCTION_ARGS)
Datum result;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls". */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do. */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[INCLUSION_UNION] =
- datumCopy(col_b->bv_values[INCLUSION_UNION],
- attr->attbyval, attr->attlen);
- col_a->bv_values[INCLUSION_UNMERGEABLE] =
- col_b->bv_values[INCLUSION_UNMERGEABLE];
- col_a->bv_values[INCLUSION_CONTAINS_EMPTY] =
- col_b->bv_values[INCLUSION_CONTAINS_EMPTY];
- PG_RETURN_VOID();
- }
-
/* If B includes empty elements, mark A similarly, if needed. */
if (!DatumGetBool(col_a->bv_values[INCLUSION_CONTAINS_EMPTY]) &&
DatumGetBool(col_b->bv_values[INCLUSION_CONTAINS_EMPTY]))
diff --git a/src/backend/access/brin/brin_minmax.c b/src/backend/access/brin/brin_minmax.c
index 7a7bd21cec..8882eec12c 100644
--- a/src/backend/access/brin/brin_minmax.c
+++ b/src/backend/access/brin/brin_minmax.c
@@ -48,6 +48,7 @@ brin_minmax_opcinfo(PG_FUNCTION_ARGS)
result = palloc0(MAXALIGN(SizeofBrinOpcInfo(2)) +
sizeof(MinmaxOpaque));
result->oi_nstored = 2;
+ result->oi_regular_nulls = true;
result->oi_opaque = (MinmaxOpaque *)
MAXALIGN((char *) result + SizeofBrinOpcInfo(2));
result->oi_typcache[0] = result->oi_typcache[1] =
@@ -69,7 +70,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
BrinDesc *bdesc = (BrinDesc *) PG_GETARG_POINTER(0);
BrinValues *column = (BrinValues *) PG_GETARG_POINTER(1);
Datum newval = PG_GETARG_DATUM(2);
- bool isnull = PG_GETARG_DATUM(3);
+ bool isnull PG_USED_FOR_ASSERTS_ONLY = PG_GETARG_DATUM(3);
Oid colloid = PG_GET_COLLATION();
FmgrInfo *cmpFn;
Datum compar;
@@ -77,18 +78,7 @@ brin_minmax_add_value(PG_FUNCTION_ARGS)
Form_pg_attribute attr;
AttrNumber attno;
- /*
- * If the new value is null, we record that we saw it if it's the first
- * one; otherwise, there's nothing to do.
- */
- if (isnull)
- {
- if (column->bv_hasnulls)
- PG_RETURN_BOOL(false);
-
- column->bv_hasnulls = true;
- PG_RETURN_BOOL(true);
- }
+ Assert(!isnull);
attno = column->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
@@ -245,34 +235,11 @@ brin_minmax_union(PG_FUNCTION_ARGS)
bool needsadj;
Assert(col_a->bv_attno == col_b->bv_attno);
-
- /* Adjust "hasnulls" */
- if (!col_a->bv_hasnulls && col_b->bv_hasnulls)
- col_a->bv_hasnulls = true;
-
- /* If there are no values in B, there's nothing left to do */
- if (col_b->bv_allnulls)
- PG_RETURN_VOID();
+ Assert(!col_a->bv_allnulls && !col_b->bv_allnulls);
attno = col_a->bv_attno;
attr = TupleDescAttr(bdesc->bd_tupdesc, attno - 1);
- /*
- * Adjust "allnulls". If A doesn't have values, just copy the values from
- * B into A, and we're done. We cannot run the operators in this case,
- * because values in A might contain garbage. Note we already established
- * that B contains values.
- */
- if (col_a->bv_allnulls)
- {
- col_a->bv_allnulls = false;
- col_a->bv_values[0] = datumCopy(col_b->bv_values[0],
- attr->attbyval, attr->attlen);
- col_a->bv_values[1] = datumCopy(col_b->bv_values[1],
- attr->attbyval, attr->attlen);
- PG_RETURN_VOID();
- }
-
/* Adjust minimum, if B's min is less than A's min */
finfo = minmax_get_strategy_procinfo(bdesc, attno, attr->atttypid,
BTLessStrategyNumber);
diff --git a/src/include/access/brin_internal.h b/src/include/access/brin_internal.h
index 9ffc9100c0..7c4f3da0a0 100644
--- a/src/include/access/brin_internal.h
+++ b/src/include/access/brin_internal.h
@@ -27,6 +27,9 @@ typedef struct BrinOpcInfo
/* Number of columns stored in an index column of this opclass */
uint16 oi_nstored;
+ /* Regular processing of NULLs in BrinValues? */
+ bool oi_regular_nulls;
+
/* Opaque pointer for the opclass' private use */
void *oi_opaque;
--
2.25.4
--jsivyprvf2oxfjz3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename="0004-BRIN-bloom-indexes-20200807.patch"
^ permalink raw reply [nested|flat] 28+ messages in thread
* Re: appendBinaryStringInfo stuff
@ 2023-02-10 12:15 Peter Eisentraut <[email protected]>
2023-02-10 19:08 ` Re: appendBinaryStringInfo stuff Corey Huinker <[email protected]>
0 siblings, 1 reply; 28+ messages in thread
From: Peter Eisentraut @ 2023-02-10 12:15 UTC (permalink / raw)
To: pgsql-hackers
On 19.12.22 07:13, Peter Eisentraut wrote:
> Also, the argument type of appendBinaryStringInfo() is char *. There is
> some code that uses this function to assemble some kind of packed binary
> layout, which requires a bunch of casts because of this. I think
> functions taking binary data plus length should take void * instead,
> like memcpy() for example.
I found a little follow-up for this one: Make the same change to
pq_sendbytes(), which is a thin wrapper around appendBinaryStringInfo().
This would allow getting rid of further casts at call sites.
From 0aed766e046ba71b01093b44f0cae3a4098f1e5b Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <[email protected]>
Date: Fri, 10 Feb 2023 13:11:09 +0100
Subject: [PATCH] Change argument type of pq_sendbytes from char * to void *
---
src/backend/libpq/pqformat.c | 2 +-
src/backend/utils/adt/array_userfuncs.c | 11 +++++------
src/backend/utils/adt/uuid.c | 2 +-
src/backend/utils/adt/varbit.c | 2 +-
src/include/libpq/pqformat.h | 2 +-
5 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/src/backend/libpq/pqformat.c b/src/backend/libpq/pqformat.c
index b7e2c7b6c9..d712c80b5e 100644
--- a/src/backend/libpq/pqformat.c
+++ b/src/backend/libpq/pqformat.c
@@ -123,7 +123,7 @@ pq_beginmessage_reuse(StringInfo buf, char msgtype)
* --------------------------------
*/
void
-pq_sendbytes(StringInfo buf, const char *data, int datalen)
+pq_sendbytes(StringInfo buf, const void *data, int datalen)
{
/* use variant that maintains a trailing null-byte, out of caution */
appendBinaryStringInfo(buf, data, datalen);
diff --git a/src/backend/utils/adt/array_userfuncs.c b/src/backend/utils/adt/array_userfuncs.c
index c8a8d33ca3..80750191d8 100644
--- a/src/backend/utils/adt/array_userfuncs.c
+++ b/src/backend/utils/adt/array_userfuncs.c
@@ -654,7 +654,7 @@ array_agg_serialize(PG_FUNCTION_ARGS)
pq_sendbyte(&buf, state->typalign);
/* dnulls */
- pq_sendbytes(&buf, (char *) state->dnulls, sizeof(bool) * state->nelems);
+ pq_sendbytes(&buf, state->dnulls, sizeof(bool) * state->nelems);
/*
* dvalues. By agreement with array_agg_deserialize, when the element
@@ -664,8 +664,7 @@ array_agg_serialize(PG_FUNCTION_ARGS)
* must be sent first).
*/
if (state->typbyval)
- pq_sendbytes(&buf, (char *) state->dvalues,
- sizeof(Datum) * state->nelems);
+ pq_sendbytes(&buf, state->dvalues, sizeof(Datum) * state->nelems);
else
{
SerialIOData *iodata;
@@ -1097,7 +1096,7 @@ array_agg_array_serialize(PG_FUNCTION_ARGS)
if (state->nullbitmap)
{
Assert(state->aitems > 0);
- pq_sendbytes(&buf, (char *) state->nullbitmap, (state->aitems + 7) / 8);
+ pq_sendbytes(&buf, state->nullbitmap, (state->aitems + 7) / 8);
}
/* nitems */
@@ -1107,10 +1106,10 @@ array_agg_array_serialize(PG_FUNCTION_ARGS)
pq_sendint32(&buf, state->ndims);
/* dims: XXX should we just send ndims elements? */
- pq_sendbytes(&buf, (char *) state->dims, sizeof(state->dims));
+ pq_sendbytes(&buf, state->dims, sizeof(state->dims));
/* lbs */
- pq_sendbytes(&buf, (char *) state->lbs, sizeof(state->lbs));
+ pq_sendbytes(&buf, state->lbs, sizeof(state->lbs));
result = pq_endtypsend(&buf);
diff --git a/src/backend/utils/adt/uuid.c b/src/backend/utils/adt/uuid.c
index 76ff6c533f..4f7aa768fd 100644
--- a/src/backend/utils/adt/uuid.c
+++ b/src/backend/utils/adt/uuid.c
@@ -154,7 +154,7 @@ uuid_send(PG_FUNCTION_ARGS)
StringInfoData buffer;
pq_begintypsend(&buffer);
- pq_sendbytes(&buffer, (char *) uuid->data, UUID_LEN);
+ pq_sendbytes(&buffer, uuid->data, UUID_LEN);
PG_RETURN_BYTEA_P(pq_endtypsend(&buffer));
}
diff --git a/src/backend/utils/adt/varbit.c b/src/backend/utils/adt/varbit.c
index 4fde0c1b14..3dbbd1207f 100644
--- a/src/backend/utils/adt/varbit.c
+++ b/src/backend/utils/adt/varbit.c
@@ -685,7 +685,7 @@ varbit_send(PG_FUNCTION_ARGS)
pq_begintypsend(&buf);
pq_sendint32(&buf, VARBITLEN(s));
- pq_sendbytes(&buf, (char *) VARBITS(s), VARBITBYTES(s));
+ pq_sendbytes(&buf, VARBITS(s), VARBITBYTES(s));
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
diff --git a/src/include/libpq/pqformat.h b/src/include/libpq/pqformat.h
index c5644c0061..0d2f958af3 100644
--- a/src/include/libpq/pqformat.h
+++ b/src/include/libpq/pqformat.h
@@ -22,7 +22,7 @@ extern void pq_beginmessage_reuse(StringInfo buf, char msgtype);
extern void pq_endmessage(StringInfo buf);
extern void pq_endmessage_reuse(StringInfo buf);
-extern void pq_sendbytes(StringInfo buf, const char *data, int datalen);
+extern void pq_sendbytes(StringInfo buf, const void *data, int datalen);
extern void pq_sendcountedtext(StringInfo buf, const char *str, int slen,
bool countincludesself);
extern void pq_sendtext(StringInfo buf, const char *str, int slen);
--
2.39.1
Attachments:
[text/plain] 0001-Change-argument-type-of-pq_sendbytes-from-char-to-vo.patch (4.2K, ../../[email protected]/2-0001-Change-argument-type-of-pq_sendbytes-from-char-to-vo.patch)
download | inline diff:
From 0aed766e046ba71b01093b44f0cae3a4098f1e5b Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <[email protected]>
Date: Fri, 10 Feb 2023 13:11:09 +0100
Subject: [PATCH] Change argument type of pq_sendbytes from char * to void *
---
src/backend/libpq/pqformat.c | 2 +-
src/backend/utils/adt/array_userfuncs.c | 11 +++++------
src/backend/utils/adt/uuid.c | 2 +-
src/backend/utils/adt/varbit.c | 2 +-
src/include/libpq/pqformat.h | 2 +-
5 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/src/backend/libpq/pqformat.c b/src/backend/libpq/pqformat.c
index b7e2c7b6c9..d712c80b5e 100644
--- a/src/backend/libpq/pqformat.c
+++ b/src/backend/libpq/pqformat.c
@@ -123,7 +123,7 @@ pq_beginmessage_reuse(StringInfo buf, char msgtype)
* --------------------------------
*/
void
-pq_sendbytes(StringInfo buf, const char *data, int datalen)
+pq_sendbytes(StringInfo buf, const void *data, int datalen)
{
/* use variant that maintains a trailing null-byte, out of caution */
appendBinaryStringInfo(buf, data, datalen);
diff --git a/src/backend/utils/adt/array_userfuncs.c b/src/backend/utils/adt/array_userfuncs.c
index c8a8d33ca3..80750191d8 100644
--- a/src/backend/utils/adt/array_userfuncs.c
+++ b/src/backend/utils/adt/array_userfuncs.c
@@ -654,7 +654,7 @@ array_agg_serialize(PG_FUNCTION_ARGS)
pq_sendbyte(&buf, state->typalign);
/* dnulls */
- pq_sendbytes(&buf, (char *) state->dnulls, sizeof(bool) * state->nelems);
+ pq_sendbytes(&buf, state->dnulls, sizeof(bool) * state->nelems);
/*
* dvalues. By agreement with array_agg_deserialize, when the element
@@ -664,8 +664,7 @@ array_agg_serialize(PG_FUNCTION_ARGS)
* must be sent first).
*/
if (state->typbyval)
- pq_sendbytes(&buf, (char *) state->dvalues,
- sizeof(Datum) * state->nelems);
+ pq_sendbytes(&buf, state->dvalues, sizeof(Datum) * state->nelems);
else
{
SerialIOData *iodata;
@@ -1097,7 +1096,7 @@ array_agg_array_serialize(PG_FUNCTION_ARGS)
if (state->nullbitmap)
{
Assert(state->aitems > 0);
- pq_sendbytes(&buf, (char *) state->nullbitmap, (state->aitems + 7) / 8);
+ pq_sendbytes(&buf, state->nullbitmap, (state->aitems + 7) / 8);
}
/* nitems */
@@ -1107,10 +1106,10 @@ array_agg_array_serialize(PG_FUNCTION_ARGS)
pq_sendint32(&buf, state->ndims);
/* dims: XXX should we just send ndims elements? */
- pq_sendbytes(&buf, (char *) state->dims, sizeof(state->dims));
+ pq_sendbytes(&buf, state->dims, sizeof(state->dims));
/* lbs */
- pq_sendbytes(&buf, (char *) state->lbs, sizeof(state->lbs));
+ pq_sendbytes(&buf, state->lbs, sizeof(state->lbs));
result = pq_endtypsend(&buf);
diff --git a/src/backend/utils/adt/uuid.c b/src/backend/utils/adt/uuid.c
index 76ff6c533f..4f7aa768fd 100644
--- a/src/backend/utils/adt/uuid.c
+++ b/src/backend/utils/adt/uuid.c
@@ -154,7 +154,7 @@ uuid_send(PG_FUNCTION_ARGS)
StringInfoData buffer;
pq_begintypsend(&buffer);
- pq_sendbytes(&buffer, (char *) uuid->data, UUID_LEN);
+ pq_sendbytes(&buffer, uuid->data, UUID_LEN);
PG_RETURN_BYTEA_P(pq_endtypsend(&buffer));
}
diff --git a/src/backend/utils/adt/varbit.c b/src/backend/utils/adt/varbit.c
index 4fde0c1b14..3dbbd1207f 100644
--- a/src/backend/utils/adt/varbit.c
+++ b/src/backend/utils/adt/varbit.c
@@ -685,7 +685,7 @@ varbit_send(PG_FUNCTION_ARGS)
pq_begintypsend(&buf);
pq_sendint32(&buf, VARBITLEN(s));
- pq_sendbytes(&buf, (char *) VARBITS(s), VARBITBYTES(s));
+ pq_sendbytes(&buf, VARBITS(s), VARBITBYTES(s));
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
diff --git a/src/include/libpq/pqformat.h b/src/include/libpq/pqformat.h
index c5644c0061..0d2f958af3 100644
--- a/src/include/libpq/pqformat.h
+++ b/src/include/libpq/pqformat.h
@@ -22,7 +22,7 @@ extern void pq_beginmessage_reuse(StringInfo buf, char msgtype);
extern void pq_endmessage(StringInfo buf);
extern void pq_endmessage_reuse(StringInfo buf);
-extern void pq_sendbytes(StringInfo buf, const char *data, int datalen);
+extern void pq_sendbytes(StringInfo buf, const void *data, int datalen);
extern void pq_sendcountedtext(StringInfo buf, const char *str, int slen,
bool countincludesself);
extern void pq_sendtext(StringInfo buf, const char *str, int slen);
--
2.39.1
^ permalink raw reply [nested|flat] 28+ messages in thread
* Re: appendBinaryStringInfo stuff
2023-02-10 12:15 Re: appendBinaryStringInfo stuff Peter Eisentraut <[email protected]>
@ 2023-02-10 19:08 ` Corey Huinker <[email protected]>
0 siblings, 0 replies; 28+ messages in thread
From: Corey Huinker @ 2023-02-10 19:08 UTC (permalink / raw)
To: Peter Eisentraut <[email protected]>; +Cc: pgsql-hackers
On Fri, Feb 10, 2023 at 7:16 AM Peter Eisentraut <
[email protected]> wrote:
> On 19.12.22 07:13, Peter Eisentraut wrote:
> > Also, the argument type of appendBinaryStringInfo() is char *. There is
> > some code that uses this function to assemble some kind of packed binary
> > layout, which requires a bunch of casts because of this. I think
> > functions taking binary data plus length should take void * instead,
> > like memcpy() for example.
>
> I found a little follow-up for this one: Make the same change to
> pq_sendbytes(), which is a thin wrapper around appendBinaryStringInfo().
> This would allow getting rid of further casts at call sites.
>
+1
Has all the benefits that 54a177a948b0a773c25c6737d1cc3cc49222a526 had.
Passes make check-world.
^ permalink raw reply [nested|flat] 28+ messages in thread
end of thread, other threads:[~2023-02-10 19:08 UTC | newest]
Thread overview: 28+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/5] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/5] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 03/10] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/5] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/6] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2020-04-02 00:56 [PATCH 3/8] Move processing of NULLs from BRIN support functions Tomas Vondra <[email protected]>
2023-02-10 12:15 Re: appendBinaryStringInfo stuff Peter Eisentraut <[email protected]>
2023-02-10 19:08 ` Re: appendBinaryStringInfo stuff Corey Huinker <[email protected]>
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