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Commit480f1f4

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Teach adjust_appendrel_attrs(_multilevel) to do multiple translations.
Currently, child relations are always base relations, so when wetranslate parent relids to child relids, we only need to translatea singler relid. However, the proposed partition-wise join featurewill create child joins, which will mean we need to translate a setof parent relids to the corresponding child relids. This ispreliminary refactoring to make that possible.Ashutosh Bapat. Review and testing of the larger patch set of whichthis is a part by Amit Langote, Rajkumar Raghuwanshi, Rafia Sabih,Thomas Munro, Dilip Kumar, and me. Some adjustments, mostlycosmetic, by me.Discussion:http://postgr.es/m/CA+TgmobQK80vtXjAsPZWWXd7c8u13G86gmuLupN+uUJjA+i4nA@mail.gmail.com
1 parentd57929a commit480f1f4

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5 files changed

+200
-72
lines changed

5 files changed

+200
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lines changed

‎src/backend/optimizer/path/allpaths.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -942,7 +942,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
942942
Assert(IsA(rinfo,RestrictInfo));
943943
childqual=adjust_appendrel_attrs(root,
944944
(Node*)rinfo->clause,
945-
appinfo);
945+
1,&appinfo);
946946
childqual=eval_const_expressions(root,childqual);
947947
/* check for flat-out constant */
948948
if (childqual&&IsA(childqual,Const))
@@ -1061,11 +1061,11 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
10611061
childrel->joininfo= (List*)
10621062
adjust_appendrel_attrs(root,
10631063
(Node*)rel->joininfo,
1064-
appinfo);
1064+
1,&appinfo);
10651065
childrel->reltarget->exprs= (List*)
10661066
adjust_appendrel_attrs(root,
10671067
(Node*)rel->reltarget->exprs,
1068-
appinfo);
1068+
1,&appinfo);
10691069

10701070
/*
10711071
* We have to make child entries in the EquivalenceClass data

‎src/backend/optimizer/path/equivclass.c

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1329,7 +1329,8 @@ generate_join_implied_equalities_broken(PlannerInfo *root,
13291329
if (IS_OTHER_REL(inner_rel)&&result!=NIL)
13301330
result= (List*)adjust_appendrel_attrs_multilevel(root,
13311331
(Node*)result,
1332-
inner_rel);
1332+
inner_rel->relids,
1333+
inner_rel->top_parent_relids);
13331334

13341335
returnresult;
13351336
}
@@ -2112,7 +2113,7 @@ add_child_rel_equivalences(PlannerInfo *root,
21122113
child_expr= (Expr*)
21132114
adjust_appendrel_attrs(root,
21142115
(Node*)cur_em->em_expr,
2115-
appinfo);
2116+
1,&appinfo);
21162117

21172118
/*
21182119
* Transform em_relids to match. Note we do *not* do

‎src/backend/optimizer/plan/planner.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1142,7 +1142,7 @@ inheritance_planner(PlannerInfo *root)
11421142
subroot->parse= (Query*)
11431143
adjust_appendrel_attrs(root,
11441144
(Node*)parse,
1145-
appinfo);
1145+
1,&appinfo);
11461146

11471147
/*
11481148
* If there are securityQuals attached to the parent, move them to the

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