From bd3bc4076e9fb701456acef2370237baab839583 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Fri, 17 Dec 2004 20:58:26 +0000 Subject: [PATCH] array_map failed to insert correct result type in an empty array. Per example from Florian Pflug. --- src/backend/utils/adt/arrayfuncs.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/src/backend/utils/adt/arrayfuncs.c b/src/backend/utils/adt/arrayfuncs.c index 0e2ed00be0..cee11cc0b6 100644 --- a/src/backend/utils/adt/arrayfuncs.c +++ b/src/backend/utils/adt/arrayfuncs.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.113 2004/09/27 01:39:02 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.114 2004/12/17 20:58:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -2241,7 +2241,13 @@ array_map(FunctionCallInfo fcinfo, Oid inpType, Oid retType) /* Check for empty array */ if (nitems <= 0) - PG_RETURN_ARRAYTYPE_P(v); + { + /* Return empty array */ + result = (ArrayType *) palloc0(sizeof(ArrayType)); + result->size = sizeof(ArrayType); + result->elemtype = retType; + PG_RETURN_ARRAYTYPE_P(result); + } /* * We arrange to look up info about input and return element types @@ -2425,14 +2431,9 @@ construct_md_array(Datum *elems, if (ndims == 0) { /* Allocate and initialize 0-D result array */ - nbytes = ARR_OVERHEAD(ndims); - result = (ArrayType *) palloc(nbytes); - - result->size = nbytes; - result->ndim = ndims; - result->flags = 0; + result = (ArrayType *) palloc0(sizeof(ArrayType)); + result->size = sizeof(ArrayType); result->elemtype = elmtype; - return result; } -- 2.40.0