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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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8
src/backend/nodes/print.c
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@ -265,8 +265,8 @@ print_rt(List *rtable)
switch (rte->rtekind)
{
case RTE_RELATION:
printf("%d\t%s\t%u",
i, rte->eref->aliasname, rte->relid);
printf("%d\t%s\t%u\t%c",
i, rte->eref->aliasname, rte->relid, rte->relkind);
break;
case RTE_SUBQUERY:
printf("%d\t%s\t[subquery]",
@ -276,10 +276,6 @@ print_rt(List *rtable)
printf("%d\t%s\t[join]",
i, rte->eref->aliasname);
break;
case RTE_SPECIAL:
printf("%d\t%s\t[special]",
i, rte->eref->aliasname);
break;
case RTE_FUNCTION:
printf("%d\t%s\t[rangefunction]",
i, rte->eref->aliasname);