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array_map failed to insert correct result type in an empty array.

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Per example from Florian Pflug.
This commit is contained in:
Tom Lane
2004-12-17 20:58:47 +00:00
parent bd677bb443
commit e333705b84
1 changed files with 9 additions and 2 deletions
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11
src/backend/utils/adt/arrayfuncs.c
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@@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.81 2002/09/18 21:35:22 tgl Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.81.2.1 2004/12/17 20:58:47 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@@ -1488,7 +1488,14 @@ array_map(FunctionCallInfo fcinfo, Oid inpType, Oid retType)
/* Check for empty array */ /* Check for empty array */
if (nitems <= 0) if (nitems <= 0)
PG_RETURN_ARRAYTYPE_P(v); {
/* Return empty array */
result = (ArrayType *) palloc(sizeof(ArrayType));
MemSet(result, 0, sizeof(ArrayType));
result->size = sizeof(ArrayType);
result->elemtype = retType;
PG_RETURN_ARRAYTYPE_P(result);
}
/* Lookup source and result types. Unneeded variables are reused. */ /* Lookup source and result types. Unneeded variables are reused. */
system_cache_lookup(inpType, false, &inp_typlen, &inp_typbyval, system_cache_lookup(inpType, false, &inp_typlen, &inp_typbyval,