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[PATCH 01/10] Introduce RelOptInfo->notnullattrs attribute
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* [PATCH 01/10] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.30.2


--------------F495F6B18672582269F00FF9
Content-Type: text/x-patch; charset=UTF-8;
 name="0002-review-20210317.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="0002-review-20210317.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v37 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index b399592ff8..754f6d64f6 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1009,6 +1009,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1065,6 +1066,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index f9d0d67aa7..bdd4876a84 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 3dd16b9ad5..925f2eac3f 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -708,6 +708,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--snesplnlompos6d4
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v37-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v35 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

---
 src/backend/optimizer/plan/initsplan.c | 10 ++++++++++
 src/backend/optimizer/util/plancat.c   | 10 ++++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 3 files changed, 22 insertions(+)

diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--tbesu4k6dthoevcy
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v8-0002-Introuduce-RelOptInfo.uniquekeys-attribute.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 6da0dcd61c..484dab0a1a 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -1005,6 +1005,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1061,6 +1062,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index e978b491f6..95b1b14cd3 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -830,6 +830,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									false, below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index 25545029d7..0b2f9d398a 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -463,6 +464,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 485d1b06c9..9e3ebd488a 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -709,6 +709,8 @@ typedef struct RelOptInfo
 	PlannerInfo *subroot;		/* if subquery */
 	List	   *subplan_params; /* if subquery */
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.21.0


--op7mf2i72xk5yu7c
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v36-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH 01/10] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.30.2


--------------F495F6B18672582269F00FF9
Content-Type: text/x-patch; charset=UTF-8;
 name="0002-review-20210317.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="0002-review-20210317.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute
@ 2020-05-03 14:37  一挃 <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: 一挃 @ 2020-05-03 14:37 UTC (permalink / raw)

The notnullattrs is calculated from catalog and run-time query. That
infomation is translated to child relation as well for partitioned
table.
---
 src/backend/optimizer/path/allpaths.c  | 31 ++++++++++++++++++++++++++
 src/backend/optimizer/plan/initsplan.c | 10 +++++++++
 src/backend/optimizer/util/plancat.c   | 10 +++++++++
 src/include/nodes/pathnodes.h          |  2 ++
 4 files changed, 53 insertions(+)

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index d73ac562eb..37b4223adb 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -998,6 +998,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 		RelOptInfo *childrel;
 		ListCell   *parentvars;
 		ListCell   *childvars;
+		int i = -1;
 
 		/* append_rel_list contains all append rels; ignore others */
 		if (appinfo->parent_relid != parentRTindex)
@@ -1054,6 +1055,36 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
 								   (Node *) rel->reltarget->exprs,
 								   1, &appinfo);
 
+		/* Copy notnullattrs. */
+		while ((i = bms_next_member(rel->notnullattrs, i)) > 0)
+		{
+			AttrNumber attno = i + FirstLowInvalidHeapAttributeNumber;
+			AttrNumber child_attno;
+			if (attno == 0)
+			{
+				/* Whole row is not null, so must be same for child */
+				childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+														attno - FirstLowInvalidHeapAttributeNumber);
+				break;
+			}
+			if (attno < 0 )
+				/* no need to translate system column */
+				child_attno = attno;
+			else
+			{
+				Node * node = list_nth(appinfo->translated_vars, attno - 1);
+				if (!IsA(node, Var))
+					/* This may happens at UNION case, like (SELECT a FROM t1 UNION SELECT a + 3
+					 * FROM t2) t and we know t.a is not null
+					 */
+					continue;
+				child_attno = castNode(Var, node)->varattno;
+			}
+
+			childrel->notnullattrs = bms_add_member(childrel->notnullattrs,
+													child_attno - FirstLowInvalidHeapAttributeNumber);
+		}
+
 		/*
 		 * We have to make child entries in the EquivalenceClass data
 		 * structures as well.  This is needed either if the parent
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index 02f813cebd..d27167dc76 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -829,6 +829,16 @@ deconstruct_recurse(PlannerInfo *root, Node *jtnode, bool below_outer_join,
 		{
 			Node	   *qual = (Node *) lfirst(l);
 
+			/* Set the not null info now */
+			ListCell	*lc;
+			List		*non_nullable_vars = find_nonnullable_vars(qual);
+			foreach(lc, non_nullable_vars)
+			{
+				Var *var = lfirst_node(Var, lc);
+				RelOptInfo *rel = root->simple_rel_array[var->varno];
+				rel->notnullattrs = bms_add_member(rel->notnullattrs,
+												   var->varattno - FirstLowInvalidHeapAttributeNumber);
+			}
 			distribute_qual_to_rels(root, qual,
 									below_outer_join, JOIN_INNER,
 									root->qual_security_level,
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index c5947fa418..eebabcfccf 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -117,6 +117,7 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	Relation	relation;
 	bool		hasindex;
 	List	   *indexinfos = NIL;
+	int			i;
 
 	/*
 	 * We need not lock the relation since it was already locked, either by
@@ -480,6 +481,15 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
 	if (inhparent && relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
 		set_relation_partition_info(root, rel, relation);
 
+	Assert(rel->notnullattrs == NULL);
+	for(i = 0; i < relation->rd_att->natts; i++)
+	{
+		FormData_pg_attribute attr = relation->rd_att->attrs[i];
+		if (attr.attnotnull)
+			rel->notnullattrs = bms_add_member(rel->notnullattrs,
+											   attr.attnum - FirstLowInvalidHeapAttributeNumber);
+	}
+
 	table_close(relation, NoLock);
 
 	/*
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 86405a274e..0d61f04d27 100644
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -718,6 +718,8 @@ typedef struct RelOptInfo
 	int			rel_parallel_workers;	/* wanted number of parallel workers */
 	uint32		amflags;		/* Bitmask of optional features supported by
 								 * the table AM */
+	/* Not null attrs, start from -FirstLowInvalidHeapAttributeNumber */
+	Bitmapset		*notnullattrs;
 
 	/* Information about foreign tables and foreign joins */
 	Oid			serverid;		/* identifies server for the table or join */
-- 
2.26.2


--yh7cw345mbttadjz
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v38-0002-Introduce-UniqueKey-attributes-on-RelOptInfo-str.patch"



^ permalink  raw  reply  [nested|flat] 48+ messages in thread

* Re: run pgindent on a regular basis / scripted manner
@ 2023-01-23 17:38  Alvaro Herrera <[email protected]>
  0 siblings, 0 replies; 48+ messages in thread

From: Alvaro Herrera @ 2023-01-23 17:38 UTC (permalink / raw)
  To: Tom Lane <[email protected]>; +Cc: Andres Freund <[email protected]>; Jelte Fennema <[email protected]>; Peter Geoghegan <[email protected]>; Bruce Momjian <[email protected]>; Magnus Hagander <[email protected]>; Stephen Frost <[email protected]>; Noah Misch <[email protected]>; Jesse Zhang <[email protected]>; pgsql-hackers

On 2023-Jan-23, Tom Lane wrote:

> 1. [...] So now I think that we should
> stick to the convention that it's on the user to install
> pg_bsd_indent somewhere in their PATH; all we'll be doing with
> this change is eliminating the step of fetching pg_bsd_indent's
> source files from somewhere else.

+1

> 2. Given #1, it'll be prudent to continue having pgindent
> double-check that pg_bsd_indent reports a specific version
> number.  We could imagine starting to use the main Postgres
> version number for that, but I'm inclined to continue with
> its existing numbering series.

+1

> 3. If we do nothing special, the first mass reindentation is
> going to reformat the pg_bsd_indent sources per PG style,
> which is ... er ... not the way they look now.  Do we want
> to accept that outcome, or take steps to prevent pgindent
> from processing pg_bsd_indent?  I have a feeling that manual
> cleanup would be necessary if we let such reindentation
> happen, but I haven't experimented.

Hmm, initially it must just be easier to have an exception so that
pg_bsd_indent itself isn't indented.

-- 
Álvaro Herrera               48°01'N 7°57'E  —  https://www.EnterpriseDB.com/
#error "Operator lives in the wrong universe"
  ("Use of cookies in real-time system development", M. Gleixner, M. Mc Guire)






^ permalink  raw  reply  [nested|flat] 48+ messages in thread

end of thread, other threads:[~2023-01-23 17:38 UTC | newest]

Thread overview: 48+ messages (download: mbox mbox.gz follow: Atom feed)
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2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
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2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH 01/10] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v37 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v35 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v38 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2020-05-03 14:37 [PATCH v36 1/6] Introduce RelOptInfo->notnullattrs attribute 一挃 <[email protected]>
2023-01-23 17:38 Re: run pgindent on a regular basis / scripted manner Alvaro Herrera <[email protected]>

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