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Add SQL Standard WITH ORDINALITY support for UNNEST (and any other SRF)

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Author: Andrew Gierth, David Fetter
Reviewers: Dean Rasheed, Jeevan Chalke, Stephen Frost
This commit is contained in:
Greg Stark
2013-07-29 16:38:01 +01:00
parent 55cbfa5366
commit c62736cc37
22 changed files with 1486 additions and 323 deletions
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5
src/backend/optimizer/util/clauses.c
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@@ -4452,10 +4452,15 @@ inline_set_returning_function(PlannerInfo *root, RangeTblEntry *rte)
*/
check_stack_depth();
/* Fail if the caller wanted ORDINALITY - we don't implement that here. */
if (rte->funcordinality)
return NULL;
/* Fail if FROM item isn't a simple FuncExpr */
fexpr = (FuncExpr *) rte->funcexpr;
if (fexpr == NULL || !IsA(fexpr, FuncExpr))
return NULL;
func_oid = fexpr->funcid;
/*