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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/parser/parse_target.c
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@ -305,7 +305,6 @@ markTargetListOrigin(ParseState *pstate, TargetEntry *tle,
markTargetListOrigin(pstate, tle, aliasvar, netlevelsup);
}
break;
case RTE_SPECIAL:
case RTE_FUNCTION:
case RTE_VALUES:
/* not a simple relation, leave it unmarked */
@ -1357,7 +1356,6 @@ expandRecordVariable(ParseState *pstate, Var *var, int levelsup)
switch (rte->rtekind)
{
case RTE_RELATION:
case RTE_SPECIAL:
case RTE_VALUES:
/*