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Don't choke when exec_move_row assigns a synthesized null to a column

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that happens to be composite itself.  Per bug #5314 from Oleg Serov.

Backpatch to 8.0 --- 7.4 has got too many other shortcomings in
composite-type support to make this worth worrying about in that branch.
This commit is contained in:
Tom Lane
2010-02-12 19:38:08 +00:00
parent 7b537a8540
commit 38a7ddc5f7
1 changed files with 15 additions and 15 deletions
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30
src/pl/plpgsql/src/pl_exec.c
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@ -3,7 +3,7 @@
* procedural language
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.154.2.9 2009/12/29 17:41:35 heikki Exp $
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.154.2.10 2010/02/12 19:38:08 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -3104,12 +3104,6 @@ exec_assign_value(PLpgSQL_execstate *estate,
*/
PLpgSQL_row *row = (PLpgSQL_row *) target;
/* Source must be of RECORD or composite type */
if (!(valtype == RECORDOID ||
get_typtype(valtype) == 'c'))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("cannot assign non-composite value to a row variable")));
if (*isNull)
{
/* If source is null, just assign nulls to the row */
@ -3123,7 +3117,13 @@ exec_assign_value(PLpgSQL_execstate *estate,
TupleDesc tupdesc;
HeapTupleData tmptup;
/* Else source is a tuple Datum, safe to do this: */
/* Source must be of RECORD or composite type */
if (!(valtype == RECORDOID ||
get_typtype(valtype) == 'c'))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("cannot assign non-composite value to a row variable")));
/* So source is a tuple Datum, safe to do this: */
td = DatumGetHeapTupleHeader(value);
/* Extract rowtype info and find a tupdesc */
tupType = HeapTupleHeaderGetTypeId(td);
@ -3148,12 +3148,6 @@ exec_assign_value(PLpgSQL_execstate *estate,
*/
PLpgSQL_rec *rec = (PLpgSQL_rec *) target;
/* Source must be of RECORD or composite type */
if (!(valtype == RECORDOID ||
get_typtype(valtype) == 'c'))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("cannot assign non-composite value to a record variable")));
if (*isNull)
{
/* If source is null, just assign nulls to the record */
@ -3167,7 +3161,13 @@ exec_assign_value(PLpgSQL_execstate *estate,
TupleDesc tupdesc;
HeapTupleData tmptup;
/* Else source is a tuple Datum, safe to do this: */
/* Source must be of RECORD or composite type */
if (!(valtype == RECORDOID ||
get_typtype(valtype) == 'c'))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("cannot assign non-composite value to a record variable")));
/* So source is a tuple Datum, safe to do this: */
td = DatumGetHeapTupleHeader(value);
/* Extract rowtype info and find a tupdesc */
tupType = HeapTupleHeaderGetTypeId(td);