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Comment ColumnarAttrNeeded

pull/4818/head
Onur Tirtir 2021-09-02 13:12:35 +03:00
parent 9cb5ef5007
commit 42ba82fb67
1 changed files with 7 additions and 0 deletions
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7
src/backend/columnar/columnar_customscan.c
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@ -85,6 +85,7 @@ static void ColumnarScan_EndCustomScan(CustomScanState *node);
static void ColumnarScan_ReScanCustomScan(CustomScanState *node); static void ColumnarScan_ReScanCustomScan(CustomScanState *node);
static void ColumnarScan_ExplainCustomScan(CustomScanState *node, List *ancestors, static void ColumnarScan_ExplainCustomScan(CustomScanState *node, List *ancestors,
ExplainState *es); ExplainState *es);
static Bitmapset * ColumnarAttrNeeded(ScanState *ss);
/* saved hook value in case of unload */ /* saved hook value in case of unload */
static set_rel_pathlist_hook_type PreviousSetRelPathlistHook = NULL; static set_rel_pathlist_hook_type PreviousSetRelPathlistHook = NULL;
@ -671,6 +672,12 @@ ColumnarScan_BeginCustomScan(CustomScanState *cscanstate, EState *estate, int ef
} }
/*
* ColumnarAttrNeeded returns a list of AttrNumber's for the ones that are
* needed during columnar custom scan.
* Throws an error if finds a Var referencing to an attribute not supported
* by ColumnarScan.
*/
static Bitmapset * static Bitmapset *
ColumnarAttrNeeded(ScanState *ss) ColumnarAttrNeeded(ScanState *ss)
{ {