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Extend index AM API for parallel index scans.

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This patch doesn't actually make any index AM parallel-aware, but it
provides the necessary functions at the AM layer to do so.

Rahila Syed, Amit Kapila, Robert Haas
This commit is contained in:
Robert Haas
2017-01-24 16:42:58 -05:00
parent 587cda35ca
commit 7b4ac19982
14 changed files with 262 additions and 5 deletions
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3
src/backend/access/nbtree/nbtree.c
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@@ -118,6 +118,9 @@ bthandler(PG_FUNCTION_ARGS)
amroutine->amendscan = btendscan;
amroutine->ammarkpos = btmarkpos;
amroutine->amrestrpos = btrestrpos;
amroutine->amestimateparallelscan = NULL;
amroutine->aminitparallelscan = NULL;
amroutine->amparallelrescan = NULL;
PG_RETURN_POINTER(amroutine);
}