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Add a relkind field to RangeTblEntry to avoid some syscache lookups.

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The recent additions for FDW support required checking foreign-table-ness
in several places in the parse/plan chain.  While it's not clear whether
that would really result in a noticeable slowdown, it seems best to avoid
any performance risk by keeping a copy of the relation's relkind in
RangeTblEntry.  That might have some other uses later, anyway.
Per discussion.
This commit is contained in:
Tom Lane
2011-02-22 19:23:23 -05:00
parent 1c51c7d5ff
commit bdca82f44d
19 changed files with 85 additions and 74 deletions
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2
src/backend/utils/adt/ri_triggers.c
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@@ -2651,11 +2651,13 @@ RI_Initial_Check(Trigger *trigger, Relation fk_rel, Relation pk_rel)
pkrte = makeNode(RangeTblEntry);
pkrte->rtekind = RTE_RELATION;
pkrte->relid = RelationGetRelid(pk_rel);
pkrte->relkind = pk_rel->rd_rel->relkind;
pkrte->requiredPerms = ACL_SELECT;
fkrte = makeNode(RangeTblEntry);
fkrte->rtekind = RTE_RELATION;
fkrte->relid = RelationGetRelid(fk_rel);
fkrte->relkind = fk_rel->rd_rel->relkind;
fkrte->requiredPerms = ACL_SELECT;
for (i = 0; i < riinfo.nkeys; i++)