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Support window functions a la SQL:2008.

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Hitoshi Harada, with some kibitzing from Heikki and Tom.
This commit is contained in:
Tom Lane
2008-12-28 18:54:01 +00:00
parent 38e9348282
commit 95b07bc7f5
92 changed files with 6720 additions and 321 deletions
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11
src/backend/utils/adt/arrayfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.150 2008/11/14 00:51:46 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.151 2008/12/28 18:53:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -4208,7 +4208,7 @@ makeArrayResult(ArrayBuildState *astate,
dims[0] = astate->nelems;
lbs[0] = 1;
return makeMdArrayResult(astate, 1, dims, lbs, rcontext);
return makeMdArrayResult(astate, 1, dims, lbs, rcontext, true);
}
/*
@ -4219,13 +4219,15 @@ makeArrayResult(ArrayBuildState *astate,
*
* astate is working state (not NULL)
* rcontext is where to construct result
* release is true if okay to release working state
*/
Datum
makeMdArrayResult(ArrayBuildState *astate,
int ndims,
int *dims,
int *lbs,
MemoryContext rcontext)
MemoryContext rcontext,
bool release)
{
ArrayType *result;
MemoryContext oldcontext;
@ -4246,7 +4248,8 @@ makeMdArrayResult(ArrayBuildState *astate,
MemoryContextSwitchTo(oldcontext);
/* Clean up all the junk */
MemoryContextDelete(astate->mcontext);
if (release)
MemoryContextDelete(astate->mcontext);
return PointerGetDatum(result);
}