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[PATCH 8/9] Define multi-minmax oclasses for types without distance
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* [PATCH 8/9] Define multi-minmax oclasses for types without distance
@ 2021-02-03 18:12  Tomas Vondra <[email protected]>
  0 siblings, 0 replies; 3+ messages in thread

From: Tomas Vondra @ 2021-02-03 18:12 UTC (permalink / raw)

The existing multi-minmax opclasses rely on "distance" function when
deciding how to build the ranges, covering all the values. In principle,
those opclasses try to minimize the lengths of ranges, i.e. maximize the
lengths of "gaps" between them.

For some data types it's hard to construct a distance function - types
like "text" or "name" generally serve as labels, and may have ordering
only. So this uses a different approach, based on the observation that
it's the outliers that "break" BRIN minmax indexes, i.e. the lowest and
highest values. So simply sort the values, keep the (K-2) extreme values
on either tail, and build a single range representing the values in the
middle. Of course, the question is whether this is actually useful, but
that's hard to judge, and it's the best we can do.
---
 src/backend/access/brin/brin_minmax_multi.c |  75 ++++++++++++
 src/include/catalog/pg_amop.dat             | 119 ++++++++++++++++++++
 src/include/catalog/pg_amproc.dat           | 113 +++++++++++++++++++
 src/include/catalog/pg_opclass.dat          |  21 ++++
 src/include/catalog/pg_opfamily.dat         |  14 +++
 5 files changed, 342 insertions(+)

diff --git a/src/backend/access/brin/brin_minmax_multi.c b/src/backend/access/brin/brin_minmax_multi.c
index 90d17e5008..02aa618b49 100644
--- a/src/backend/access/brin/brin_minmax_multi.c
+++ b/src/backend/access/brin/brin_minmax_multi.c
@@ -1210,6 +1210,9 @@ build_distances(FmgrInfo *distanceFn, Oid colloid,
 
 	Assert(ncranges >= 2);
 
+	if (!distanceFn)
+		return NULL;
+
 	distances = (DistanceValue *) palloc0(sizeof(DistanceValue) * (ncranges - 1));
 
 	/*
@@ -1298,6 +1301,70 @@ count_values(CombineRange *cranges, int ncranges)
 }
 #endif
 
+
+static int
+reduce_combine_ranges_simple(CombineRange *cranges, int ncranges,
+							 int max_values, FmgrInfo *cmp, Oid colloid)
+{
+	int		i;
+	int		nvalues;
+	Datum  *values;
+
+	compare_context cxt;
+
+	/* number of values to keep on each tail */
+	int tail = (max_values - 2) / 2;
+	int m = Min(tail / 2, ncranges - 1 / 2);
+
+	/* allocate space for the boundary values */
+	nvalues = 0;
+	values = (Datum *) palloc(sizeof(Datum) * max_values);
+
+	for (i = 0; i < m; i++)
+	{
+		/* head */
+		values[nvalues++] = cranges[i].minval;
+		values[nvalues++] = cranges[i].maxval;
+
+		/* tail */
+		values[nvalues++] = cranges[ncranges - 1 - i].minval;
+		values[nvalues++] = cranges[ncranges - 1 - i].maxval;
+	}
+
+	/* middle part */
+	values[nvalues++] = cranges[m].maxval;
+	values[nvalues++] = cranges[ncranges - 1 - m].minval;
+
+	/* We should have even number of range values. */
+	Assert(nvalues % 2 == 0);
+
+	/* sort the values */
+	cxt.colloid = colloid;
+	cxt.cmpFn = cmp;
+
+	/*
+	 * Sort the values using the comparator function, and form ranges
+	 * from the sorted result.
+	 */
+	qsort_arg(values, nvalues, sizeof(Datum),
+			  compare_values, (void *) &cxt);
+
+	/* We have nvalues boundary values, which means nvalues/2 ranges. */
+	for (i = 0; i < (nvalues / 2); i++)
+	{
+		cranges[i].minval = values[2*i];
+		cranges[i].maxval = values[2*i + 1];
+
+		/* if the boundary values are the same, it's a collapsed range */
+		cranges[i].collapsed = (compare_values(&values[2*i],
+											   &values[2*i+1],
+											   &cxt) == 0);
+	}
+
+	return (nvalues / 2);
+}
+
+
 /*
  * reduce_combine_ranges
  *		reduce the ranges until the number of values is low enough
@@ -1366,6 +1433,14 @@ reduce_combine_ranges(CombineRange *cranges, int ncranges,
 	if (keep >= ndistances)
 		return ncranges;
 
+	/*
+	 * Without distances, we use a simple approach keeping as many
+	 * outliers as possible.
+	 */
+	if (!distances)
+		return reduce_combine_ranges_simple(cranges, ncranges, max_values,
+											cmp, colloid);
+
 	/* sort the values */
 	cxt.colloid = colloid;
 	cxt.cmpFn = cmp;
diff --git a/src/include/catalog/pg_amop.dat b/src/include/catalog/pg_amop.dat
index 762ac3acef..4ab4aff073 100644
--- a/src/include/catalog/pg_amop.dat
+++ b/src/include/catalog/pg_amop.dat
@@ -1814,6 +1814,23 @@
   amoprighttype => 'bytea', amopstrategy => '5', amopopr => '>(bytea,bytea)',
   amopmethod => 'brin' },
 
+# minmax multi bytea
+{ amopfamily => 'brin/bytea_minmax_multi_ops', amoplefttype => 'bytea',
+  amoprighttype => 'bytea', amopstrategy => '1', amopopr => '<(bytea,bytea)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bytea_minmax_multi_ops', amoplefttype => 'bytea',
+  amoprighttype => 'bytea', amopstrategy => '2', amopopr => '<=(bytea,bytea)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bytea_minmax_multi_ops', amoplefttype => 'bytea',
+  amoprighttype => 'bytea', amopstrategy => '3', amopopr => '=(bytea,bytea)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bytea_minmax_multi_ops', amoplefttype => 'bytea',
+  amoprighttype => 'bytea', amopstrategy => '4', amopopr => '>=(bytea,bytea)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bytea_minmax_multi_ops', amoplefttype => 'bytea',
+  amoprighttype => 'bytea', amopstrategy => '5', amopopr => '>(bytea,bytea)',
+  amopmethod => 'brin' },
+
 # bloom bytea
 { amopfamily => 'brin/bytea_bloom_ops', amoplefttype => 'bytea',
   amoprighttype => 'bytea', amopstrategy => '1', amopopr => '=(bytea,bytea)',
@@ -1836,6 +1853,23 @@
   amoprighttype => 'char', amopstrategy => '5', amopopr => '>(char,char)',
   amopmethod => 'brin' },
 
+# minmax multi "char"
+{ amopfamily => 'brin/char_minmax_multi_ops', amoplefttype => 'char',
+  amoprighttype => 'char', amopstrategy => '1', amopopr => '<(char,char)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/char_minmax_multi_ops', amoplefttype => 'char',
+  amoprighttype => 'char', amopstrategy => '2', amopopr => '<=(char,char)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/char_minmax_multi_ops', amoplefttype => 'char',
+  amoprighttype => 'char', amopstrategy => '3', amopopr => '=(char,char)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/char_minmax_multi_ops', amoplefttype => 'char',
+  amoprighttype => 'char', amopstrategy => '4', amopopr => '>=(char,char)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/char_minmax_multi_ops', amoplefttype => 'char',
+  amoprighttype => 'char', amopstrategy => '5', amopopr => '>(char,char)',
+  amopmethod => 'brin' },
+
 # bloom "char"
 { amopfamily => 'brin/char_bloom_ops', amoplefttype => 'char',
   amoprighttype => 'char', amopstrategy => '1', amopopr => '=(char,char)',
@@ -1858,6 +1892,23 @@
   amoprighttype => 'name', amopstrategy => '5', amopopr => '>(name,name)',
   amopmethod => 'brin' },
 
+# minmax multi name
+{ amopfamily => 'brin/name_minmax_multi_ops', amoplefttype => 'name',
+  amoprighttype => 'name', amopstrategy => '1', amopopr => '<(name,name)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/name_minmax_multi_ops', amoplefttype => 'name',
+  amoprighttype => 'name', amopstrategy => '2', amopopr => '<=(name,name)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/name_minmax_multi_ops', amoplefttype => 'name',
+  amoprighttype => 'name', amopstrategy => '3', amopopr => '=(name,name)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/name_minmax_multi_ops', amoplefttype => 'name',
+  amoprighttype => 'name', amopstrategy => '4', amopopr => '>=(name,name)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/name_minmax_multi_ops', amoplefttype => 'name',
+  amoprighttype => 'name', amopstrategy => '5', amopopr => '>(name,name)',
+  amopmethod => 'brin' },
+
 # bloom name
 { amopfamily => 'brin/name_bloom_ops', amoplefttype => 'name',
   amoprighttype => 'name', amopstrategy => '1', amopopr => '=(name,name)',
@@ -2210,6 +2261,23 @@
   amoprighttype => 'text', amopstrategy => '5', amopopr => '>(text,text)',
   amopmethod => 'brin' },
 
+# minmax multi text
+{ amopfamily => 'brin/text_minmax_multi_ops', amoplefttype => 'text',
+  amoprighttype => 'text', amopstrategy => '1', amopopr => '<(text,text)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/text_minmax_multi_ops', amoplefttype => 'text',
+  amoprighttype => 'text', amopstrategy => '2', amopopr => '<=(text,text)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/text_minmax_multi_ops', amoplefttype => 'text',
+  amoprighttype => 'text', amopstrategy => '3', amopopr => '=(text,text)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/text_minmax_multi_ops', amoplefttype => 'text',
+  amoprighttype => 'text', amopstrategy => '4', amopopr => '>=(text,text)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/text_minmax_multi_ops', amoplefttype => 'text',
+  amoprighttype => 'text', amopstrategy => '5', amopopr => '>(text,text)',
+  amopmethod => 'brin' },
+
 # bloom text
 { amopfamily => 'brin/text_bloom_ops', amoplefttype => 'text',
   amoprighttype => 'text', amopstrategy => '1', amopopr => '=(text,text)',
@@ -2592,6 +2660,23 @@
   amoprighttype => 'bpchar', amopstrategy => '5', amopopr => '>(bpchar,bpchar)',
   amopmethod => 'brin' },
 
+# minmax multi character
+{ amopfamily => 'brin/bpchar_minmax_multi_ops', amoplefttype => 'bpchar',
+  amoprighttype => 'bpchar', amopstrategy => '1', amopopr => '<(bpchar,bpchar)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bpchar_minmax_multi_ops', amoplefttype => 'bpchar',
+  amoprighttype => 'bpchar', amopstrategy => '2',
+  amopopr => '<=(bpchar,bpchar)', amopmethod => 'brin' },
+{ amopfamily => 'brin/bpchar_minmax_multi_ops', amoplefttype => 'bpchar',
+  amoprighttype => 'bpchar', amopstrategy => '3', amopopr => '=(bpchar,bpchar)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bpchar_minmax_multi_ops', amoplefttype => 'bpchar',
+  amoprighttype => 'bpchar', amopstrategy => '4',
+  amopopr => '>=(bpchar,bpchar)', amopmethod => 'brin' },
+{ amopfamily => 'brin/bpchar_minmax_multi_ops', amoplefttype => 'bpchar',
+  amoprighttype => 'bpchar', amopstrategy => '5', amopopr => '>(bpchar,bpchar)',
+  amopmethod => 'brin' },
+
 # bloom character
 { amopfamily => 'brin/bpchar_bloom_ops', amoplefttype => 'bpchar',
   amoprighttype => 'bpchar', amopstrategy => '1', amopopr => '=(bpchar,bpchar)',
@@ -3061,6 +3146,23 @@
   amoprighttype => 'bit', amopstrategy => '5', amopopr => '>(bit,bit)',
   amopmethod => 'brin' },
 
+# minmax multi bit
+{ amopfamily => 'brin/bit_minmax_multi_ops', amoplefttype => 'bit',
+  amoprighttype => 'bit', amopstrategy => '1', amopopr => '<(bit,bit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bit_minmax_multi_ops', amoplefttype => 'bit',
+  amoprighttype => 'bit', amopstrategy => '2', amopopr => '<=(bit,bit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bit_minmax_multi_ops', amoplefttype => 'bit',
+  amoprighttype => 'bit', amopstrategy => '3', amopopr => '=(bit,bit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bit_minmax_multi_ops', amoplefttype => 'bit',
+  amoprighttype => 'bit', amopstrategy => '4', amopopr => '>=(bit,bit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/bit_minmax_multi_ops', amoplefttype => 'bit',
+  amoprighttype => 'bit', amopstrategy => '5', amopopr => '>(bit,bit)',
+  amopmethod => 'brin' },
+
 # minmax bit varying
 { amopfamily => 'brin/varbit_minmax_ops', amoplefttype => 'varbit',
   amoprighttype => 'varbit', amopstrategy => '1', amopopr => '<(varbit,varbit)',
@@ -3078,6 +3180,23 @@
   amoprighttype => 'varbit', amopstrategy => '5', amopopr => '>(varbit,varbit)',
   amopmethod => 'brin' },
 
+# minmax multi bit varying
+{ amopfamily => 'brin/varbit_minmax_multi_ops', amoplefttype => 'varbit',
+  amoprighttype => 'varbit', amopstrategy => '1', amopopr => '<(varbit,varbit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/varbit_minmax_multi_ops', amoplefttype => 'varbit',
+  amoprighttype => 'varbit', amopstrategy => '2',
+  amopopr => '<=(varbit,varbit)', amopmethod => 'brin' },
+{ amopfamily => 'brin/varbit_minmax_multi_ops', amoplefttype => 'varbit',
+  amoprighttype => 'varbit', amopstrategy => '3', amopopr => '=(varbit,varbit)',
+  amopmethod => 'brin' },
+{ amopfamily => 'brin/varbit_minmax_multi_ops', amoplefttype => 'varbit',
+  amoprighttype => 'varbit', amopstrategy => '4',
+  amopopr => '>=(varbit,varbit)', amopmethod => 'brin' },
+{ amopfamily => 'brin/varbit_minmax_multi_ops', amoplefttype => 'varbit',
+  amoprighttype => 'varbit', amopstrategy => '5', amopopr => '>(varbit,varbit)',
+  amopmethod => 'brin' },
+
 # minmax numeric
 { amopfamily => 'brin/numeric_minmax_ops', amoplefttype => 'numeric',
   amoprighttype => 'numeric', amopstrategy => '1',
diff --git a/src/include/catalog/pg_amproc.dat b/src/include/catalog/pg_amproc.dat
index 51403716b1..69a7ed682c 100644
--- a/src/include/catalog/pg_amproc.dat
+++ b/src/include/catalog/pg_amproc.dat
@@ -805,6 +805,22 @@
 { amprocfamily => 'brin/bytea_minmax_ops', amproclefttype => 'bytea',
   amprocrighttype => 'bytea', amprocnum => '4', amproc => 'brin_minmax_union' },
 
+# minmax multi bytea
+{ amprocfamily => 'brin/bytea_minmax_multi_ops', amproclefttype => 'bytea',
+  amprocrighttype => 'bytea', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/bytea_minmax_multi_ops', amproclefttype => 'bytea',
+  amprocrighttype => 'bytea', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/bytea_minmax_multi_ops', amproclefttype => 'bytea',
+  amprocrighttype => 'bytea', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/bytea_minmax_multi_ops', amproclefttype => 'bytea',
+  amprocrighttype => 'bytea', amprocnum => '4', amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/bytea_minmax_multi_ops', amproclefttype => 'bytea',
+  amprocrighttype => 'bytea', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # bloom bytea
 { amprocfamily => 'brin/bytea_bloom_ops', amproclefttype => 'bytea',
   amprocrighttype => 'bytea', amprocnum => '1',
@@ -836,6 +852,22 @@
 { amprocfamily => 'brin/char_minmax_ops', amproclefttype => 'char',
   amprocrighttype => 'char', amprocnum => '4', amproc => 'brin_minmax_union' },
 
+# minmax multi "char"
+{ amprocfamily => 'brin/char_minmax_multi_ops', amproclefttype => 'char',
+  amprocrighttype => 'char', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/char_minmax_multi_ops', amproclefttype => 'char',
+  amprocrighttype => 'char', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/char_minmax_multi_ops', amproclefttype => 'char',
+  amprocrighttype => 'char', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/char_minmax_multi_ops', amproclefttype => 'char',
+  amprocrighttype => 'char', amprocnum => '4', amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/char_minmax_multi_ops', amproclefttype => 'char',
+  amprocrighttype => 'char', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # bloom "char"
 { amprocfamily => 'brin/char_bloom_ops', amproclefttype => 'char',
   amprocrighttype => 'char', amprocnum => '1',
@@ -867,6 +899,22 @@
 { amprocfamily => 'brin/name_minmax_ops', amproclefttype => 'name',
   amprocrighttype => 'name', amprocnum => '4', amproc => 'brin_minmax_union' },
 
+# minmax multi name
+{ amprocfamily => 'brin/name_minmax_multi_ops', amproclefttype => 'name',
+  amprocrighttype => 'name', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/name_minmax_multi_ops', amproclefttype => 'name',
+  amprocrighttype => 'name', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/name_minmax_multi_ops', amproclefttype => 'name',
+  amprocrighttype => 'name', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/name_minmax_multi_ops', amproclefttype => 'name',
+  amprocrighttype => 'name', amprocnum => '4', amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/name_minmax_multi_ops', amproclefttype => 'name',
+  amprocrighttype => 'name', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # bloom name
 { amprocfamily => 'brin/name_bloom_ops', amproclefttype => 'name',
   amprocrighttype => 'name', amprocnum => '1',
@@ -1197,6 +1245,22 @@
 { amprocfamily => 'brin/text_minmax_ops', amproclefttype => 'text',
   amprocrighttype => 'text', amprocnum => '4', amproc => 'brin_minmax_union' },
 
+# minmax multi text
+{ amprocfamily => 'brin/text_minmax_multi_ops', amproclefttype => 'text',
+  amprocrighttype => 'text', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/text_minmax_multi_ops', amproclefttype => 'text',
+  amprocrighttype => 'text', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/text_minmax_multi_ops', amproclefttype => 'text',
+  amprocrighttype => 'text', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/text_minmax_multi_ops', amproclefttype => 'text',
+  amprocrighttype => 'text', amprocnum => '4', amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/text_minmax_multi_ops', amproclefttype => 'text',
+  amprocrighttype => 'text', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # bloom text
 { amprocfamily => 'brin/text_bloom_ops', amproclefttype => 'text',
   amprocrighttype => 'text', amprocnum => '1',
@@ -1663,6 +1727,23 @@
   amprocrighttype => 'bpchar', amprocnum => '4',
   amproc => 'brin_minmax_union' },
 
+# minmax multi character
+{ amprocfamily => 'brin/bpchar_minmax_multi_ops', amproclefttype => 'bpchar',
+  amprocrighttype => 'bpchar', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/bpchar_minmax_multi_ops', amproclefttype => 'bpchar',
+  amprocrighttype => 'bpchar', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/bpchar_minmax_multi_ops', amproclefttype => 'bpchar',
+  amprocrighttype => 'bpchar', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/bpchar_minmax_multi_ops', amproclefttype => 'bpchar',
+  amprocrighttype => 'bpchar', amprocnum => '4',
+  amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/bpchar_minmax_multi_ops', amproclefttype => 'bpchar',
+  amprocrighttype => 'bpchar', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # bloom character
 { amprocfamily => 'brin/bpchar_bloom_ops', amproclefttype => 'bpchar',
   amprocrighttype => 'bpchar', amprocnum => '1',
@@ -2180,6 +2261,21 @@
 { amprocfamily => 'brin/bit_minmax_ops', amproclefttype => 'bit',
   amprocrighttype => 'bit', amprocnum => '4', amproc => 'brin_minmax_union' },
 
+# minmax multi bit
+{ amprocfamily => 'brin/bit_minmax_multi_ops', amproclefttype => 'bit',
+  amprocrighttype => 'bit', amprocnum => '1', amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/bit_minmax_multi_ops', amproclefttype => 'bit',
+  amprocrighttype => 'bit', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/bit_minmax_multi_ops', amproclefttype => 'bit',
+  amprocrighttype => 'bit', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/bit_minmax_multi_ops', amproclefttype => 'bit',
+  amprocrighttype => 'bit', amprocnum => '4', amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/bit_minmax_multi_ops', amproclefttype => 'bit',
+  amprocrighttype => 'bit', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # minmax bit varying
 { amprocfamily => 'brin/varbit_minmax_ops', amproclefttype => 'varbit',
   amprocrighttype => 'varbit', amprocnum => '1',
@@ -2194,6 +2290,23 @@
   amprocrighttype => 'varbit', amprocnum => '4',
   amproc => 'brin_minmax_union' },
 
+# minmax multi bit varying
+{ amprocfamily => 'brin/varbit_minmax_multi_ops', amproclefttype => 'varbit',
+  amprocrighttype => 'varbit', amprocnum => '1',
+  amproc => 'brin_minmax_multi_opcinfo' },
+{ amprocfamily => 'brin/varbit_minmax_multi_ops', amproclefttype => 'varbit',
+  amprocrighttype => 'varbit', amprocnum => '2',
+  amproc => 'brin_minmax_multi_add_value' },
+{ amprocfamily => 'brin/varbit_minmax_multi_ops', amproclefttype => 'varbit',
+  amprocrighttype => 'varbit', amprocnum => '3',
+  amproc => 'brin_minmax_multi_consistent' },
+{ amprocfamily => 'brin/varbit_minmax_multi_ops', amproclefttype => 'varbit',
+  amprocrighttype => 'varbit', amprocnum => '4',
+  amproc => 'brin_minmax_multi_union' },
+{ amprocfamily => 'brin/varbit_minmax_multi_ops', amproclefttype => 'varbit',
+  amprocrighttype => 'varbit', amprocnum => '5',
+  amproc => 'brin_minmax_multi_options' },
+
 # minmax numeric
 { amprocfamily => 'brin/numeric_minmax_ops', amproclefttype => 'numeric',
   amprocrighttype => 'numeric', amprocnum => '1',
diff --git a/src/include/catalog/pg_opclass.dat b/src/include/catalog/pg_opclass.dat
index da25befefe..823f1b01fe 100644
--- a/src/include/catalog/pg_opclass.dat
+++ b/src/include/catalog/pg_opclass.dat
@@ -266,18 +266,27 @@
 { opcmethod => 'brin', opcname => 'bytea_minmax_ops',
   opcfamily => 'brin/bytea_minmax_ops', opcintype => 'bytea',
   opckeytype => 'bytea' },
+{ opcmethod => 'brin', opcname => 'bytea_minmax_multi_ops',
+  opcfamily => 'brin/bytea_minmax_multi_ops', opcintype => 'bytea',
+  opckeytype => 'bytea', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'bytea_bloom_ops',
   opcfamily => 'brin/bytea_bloom_ops', opcintype => 'bytea',
   opckeytype => 'bytea', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'char_minmax_ops',
   opcfamily => 'brin/char_minmax_ops', opcintype => 'char',
   opckeytype => 'char' },
+{ opcmethod => 'brin', opcname => 'char_minmax_multi_ops',
+  opcfamily => 'brin/char_minmax_multi_ops', opcintype => 'char',
+  opckeytype => 'char', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'char_bloom_ops',
   opcfamily => 'brin/char_bloom_ops', opcintype => 'char',
   opckeytype => 'char', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'name_minmax_ops',
   opcfamily => 'brin/name_minmax_ops', opcintype => 'name',
   opckeytype => 'name' },
+{ opcmethod => 'brin', opcname => 'name_minmax_multi_ops',
+  opcfamily => 'brin/name_minmax_multi_ops', opcintype => 'name',
+  opckeytype => 'name', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'name_bloom_ops',
   opcfamily => 'brin/name_bloom_ops', opcintype => 'name',
   opckeytype => 'name', opcdefault => 'f' },
@@ -311,6 +320,9 @@
 { opcmethod => 'brin', opcname => 'text_minmax_ops',
   opcfamily => 'brin/text_minmax_ops', opcintype => 'text',
   opckeytype => 'text' },
+{ opcmethod => 'brin', opcname => 'text_minmax_multi_ops',
+  opcfamily => 'brin/text_minmax_multi_ops', opcintype => 'text',
+  opckeytype => 'text', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'text_bloom_ops',
   opcfamily => 'brin/text_bloom_ops', opcintype => 'text',
   opckeytype => 'text', opcdefault => 'f' },
@@ -381,6 +393,9 @@
 { opcmethod => 'brin', opcname => 'bpchar_minmax_ops',
   opcfamily => 'brin/bpchar_minmax_ops', opcintype => 'bpchar',
   opckeytype => 'bpchar' },
+{ opcmethod => 'brin', opcname => 'bpchar_minmax_multi_ops',
+  opcfamily => 'brin/bpchar_minmax_multi_ops', opcintype => 'bpchar',
+  opckeytype => 'bpchar', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'bpchar_bloom_ops',
   opcfamily => 'brin/bpchar_bloom_ops', opcintype => 'bpchar',
   opckeytype => 'bpchar', opcdefault => 'f' },
@@ -440,9 +455,15 @@
   opckeytype => 'timetz', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'bit_minmax_ops',
   opcfamily => 'brin/bit_minmax_ops', opcintype => 'bit', opckeytype => 'bit' },
+{ opcmethod => 'brin', opcname => 'bit_minmax_multi_ops',
+  opcfamily => 'brin/bit_minmax_multi_ops', opcintype => 'bit',
+  opckeytype => 'bit', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'varbit_minmax_ops',
   opcfamily => 'brin/varbit_minmax_ops', opcintype => 'varbit',
   opckeytype => 'varbit' },
+{ opcmethod => 'brin', opcname => 'varbit_minmax_multi_ops',
+  opcfamily => 'brin/varbit_minmax_multi_ops', opcintype => 'varbit',
+  opckeytype => 'varbit', opcdefault => 'f' },
 { opcmethod => 'brin', opcname => 'numeric_minmax_ops',
   opcfamily => 'brin/numeric_minmax_ops', opcintype => 'numeric',
   opckeytype => 'numeric' },
diff --git a/src/include/catalog/pg_opfamily.dat b/src/include/catalog/pg_opfamily.dat
index ba9231ac8c..ffb20e72ab 100644
--- a/src/include/catalog/pg_opfamily.dat
+++ b/src/include/catalog/pg_opfamily.dat
@@ -192,6 +192,8 @@
   opfmethod => 'brin', opfname => 'numeric_minmax_multi_ops' },
 { oid => '4056',
   opfmethod => 'brin', opfname => 'text_minmax_ops' },
+{ oid => '9967',
+  opfmethod => 'brin', opfname => 'text_minmax_multi_ops' },
 { oid => '9902',
   opfmethod => 'brin', opfname => 'text_bloom_ops' },
 { oid => '9903',
@@ -210,14 +212,20 @@
   opfmethod => 'brin', opfname => 'datetime_bloom_ops' },
 { oid => '4062',
   opfmethod => 'brin', opfname => 'char_minmax_ops' },
+{ oid => '9968',
+  opfmethod => 'brin', opfname => 'char_minmax_multi_ops' },
 { oid => '9906',
   opfmethod => 'brin', opfname => 'char_bloom_ops' },
 { oid => '4064',
   opfmethod => 'brin', opfname => 'bytea_minmax_ops' },
+{ oid => '9969',
+  opfmethod => 'brin', opfname => 'bytea_minmax_multi_ops' },
 { oid => '9907',
   opfmethod => 'brin', opfname => 'bytea_bloom_ops' },
 { oid => '4065',
   opfmethod => 'brin', opfname => 'name_minmax_ops' },
+{ oid => '9970',
+  opfmethod => 'brin', opfname => 'name_minmax_multi_ops' },
 { oid => '9908',
   opfmethod => 'brin', opfname => 'name_bloom_ops' },
 { oid => '4068',
@@ -260,6 +268,8 @@
   opfmethod => 'brin', opfname => 'network_bloom_ops' },
 { oid => '4076',
   opfmethod => 'brin', opfname => 'bpchar_minmax_ops' },
+{ oid => '9971',
+  opfmethod => 'brin', opfname => 'bpchar_minmax_multi_ops' },
 { oid => '9915',
   opfmethod => 'brin', opfname => 'bpchar_bloom_ops' },
 { oid => '4077',
@@ -276,8 +286,12 @@
   opfmethod => 'brin', opfname => 'interval_bloom_ops' },
 { oid => '4079',
   opfmethod => 'brin', opfname => 'bit_minmax_ops' },
+{ oid => '9972',
+  opfmethod => 'brin', opfname => 'bit_minmax_multi_ops' },
 { oid => '4080',
   opfmethod => 'brin', opfname => 'varbit_minmax_ops' },
+{ oid => '9973',
+  opfmethod => 'brin', opfname => 'varbit_minmax_multi_ops' },
 { oid => '4081',
   opfmethod => 'brin', opfname => 'uuid_minmax_ops' },
 { oid => '9938',
-- 
2.26.2


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 name="0007-Remove-the-special-batch-mode-use-a-larger--20210203.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
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 filename*1="tch"



^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Re: Memory leak in WAL sender with pgoutput (v10~)
@ 2024-12-03 08:31  Amit Kapila <[email protected]>
  0 siblings, 1 reply; 3+ messages in thread

From: Amit Kapila @ 2024-12-03 08:31 UTC (permalink / raw)
  To: Michael Paquier <[email protected]>; +Cc: Alvaro Herrera <[email protected]>; Postgres hackers <[email protected]>

On Tue, Dec 3, 2024 at 12:17 PM Michael Paquier <[email protected]> wrote:
>
> So how about the attached that introduces a FreePublication() matching
> with GetPublication(), used to do the cleanup?  Feel free to comment.
>

As you would have noted I am fine with the fix on these lines but I
suggest holding it till we conclude the memory context point raised by
me today. It is possible that we are still leaking some memory in
other related scenarios.

-- 
With Regards,
Amit Kapila.






^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Re: Memory leak in WAL sender with pgoutput (v10~)
@ 2024-12-03 09:11  Michael Paquier <[email protected]>
  parent: Amit Kapila <[email protected]>
  0 siblings, 0 replies; 3+ messages in thread

From: Michael Paquier @ 2024-12-03 09:11 UTC (permalink / raw)
  To: Amit Kapila <[email protected]>; +Cc: Alvaro Herrera <[email protected]>; Postgres hackers <[email protected]>

On Tue, Dec 03, 2024 at 02:01:00PM +0530, Amit Kapila wrote:
> As you would have noted I am fine with the fix on these lines but I
> suggest holding it till we conclude the memory context point raised by
> me today. It is possible that we are still leaking some memory in
> other related scenarios.

Sure.  I've not seen anything else, but things are complicated enough
in this code that a path could always have been missed.
--
Michael


Attachments:

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^ permalink  raw  reply  [nested|flat] 3+ messages in thread


end of thread, other threads:[~2024-12-03 09:11 UTC | newest]

Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2021-02-03 18:12 [PATCH 8/9] Define multi-minmax oclasses for types without distance Tomas Vondra <[email protected]>
2024-12-03 08:31 Re: Memory leak in WAL sender with pgoutput (v10~) Amit Kapila <[email protected]>
2024-12-03 09:11 ` Re: Memory leak in WAL sender with pgoutput (v10~) Michael Paquier <[email protected]>

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