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Commiteb62f07

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committed
Un-break exec_move_row() for case that a NULL tuple and tupdesc are
passed, which occurs when no rows are retrieved by a SELECT.Mea maxima culpa ... I should have caught this.
1 parentf4832de commiteb62f07

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1 file changed

+11
-14
lines changed

1 file changed

+11
-14
lines changed

‎src/pl/plpgsql/src/pl_exec.c‎

Lines changed: 11 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
* procedural language
44
*
55
* IDENTIFICATION
6-
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.41 2001/04/30 20:05:40 tgl Exp $
6+
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.42 2001/05/08 01:00:53 tgl Exp $
77
*
88
* This software is copyrighted by Jan Wieck - Hamburg.
99
*
@@ -1344,6 +1344,8 @@ exec_stmt_fors(PLpgSQL_execstate * estate, PLpgSQL_stmt_fors * stmt)
13441344
*/
13451345
exec_run_select(estate,stmt->query,0);
13461346
n=SPI_processed;
1347+
tuptab=SPI_tuptable;
1348+
SPI_tuptable=NULL;
13471349

13481350
/*
13491351
* If the query didn't return any row, set the target to NULL and
@@ -1363,9 +1365,6 @@ exec_stmt_fors(PLpgSQL_execstate * estate, PLpgSQL_stmt_fors * stmt)
13631365
/*
13641366
* Now do the loop
13651367
*/
1366-
tuptab=SPI_tuptable;
1367-
SPI_tuptable=NULL;
1368-
13691368
for (i=0;i<n;i++)
13701369
{
13711370

@@ -1445,6 +1444,8 @@ exec_stmt_select(PLpgSQL_execstate * estate, PLpgSQL_stmt_select * stmt)
14451444
*/
14461445
exec_run_select(estate,stmt->query,1);
14471446
n=SPI_processed;
1447+
tuptab=SPI_tuptable;
1448+
SPI_tuptable=NULL;
14481449

14491450
/*
14501451
* If the query didn't return any row, set the target to NULL and
@@ -1459,9 +1460,6 @@ exec_stmt_select(PLpgSQL_execstate * estate, PLpgSQL_stmt_select * stmt)
14591460
/*
14601461
* Put the result into the target and set found to true
14611462
*/
1462-
tuptab=SPI_tuptable;
1463-
SPI_tuptable=NULL;
1464-
14651463
exec_move_row(estate,rec,row,tuptab->vals[0],tuptab->tupdesc);
14661464

14671465
exec_set_found(estate, true);
@@ -2053,6 +2051,8 @@ exec_stmt_dynfors(PLpgSQL_execstate * estate, PLpgSQL_stmt_dynfors * stmt)
20532051
pfree(querystr);
20542052

20552053
n=SPI_processed;
2054+
tuptab=SPI_tuptable;
2055+
SPI_tuptable=NULL;
20562056

20572057
/*
20582058
* If the query didn't return any row, set the target to NULL and
@@ -2072,9 +2072,6 @@ exec_stmt_dynfors(PLpgSQL_execstate * estate, PLpgSQL_stmt_dynfors * stmt)
20722072
/*
20732073
* Now do the loop
20742074
*/
2075-
tuptab=SPI_tuptable;
2076-
SPI_tuptable=NULL;
2077-
20782075
for (i=0;i<n;i++)
20792076
{
20802077

@@ -2322,9 +2319,9 @@ exec_eval_expr(PLpgSQL_execstate * estate,
23222319
* Check that the expression returned one single Datum
23232320
*/
23242321
if (SPI_processed>1)
2325-
elog(ERROR,"query \"%s\"didn't return a single value",expr->query);
2322+
elog(ERROR,"query \"%s\"returned more than one row",expr->query);
23262323
if (SPI_tuptable->tupdesc->natts!=1)
2327-
elog(ERROR,"query \"%s\"didn't return a single value",expr->query);
2324+
elog(ERROR,"query \"%s\"returned more than one column",expr->query);
23282325

23292326
/*
23302327
* Return the result and its type
@@ -2630,14 +2627,14 @@ exec_move_row(PLpgSQL_execstate * estate,
26302627
if (i<t_natts)
26312628
{
26322629
value=SPI_getbinval(tup,tupdesc,i+1,&isnull);
2630+
valtype=SPI_gettypeid(tupdesc,i+1);
26332631
}
26342632
else
26352633
{
26362634
value= (Datum)0;
26372635
isnull= true;
2636+
valtype=InvalidOid;
26382637
}
2639-
/* tupdesc should have entries for all columns I expect... */
2640-
valtype=SPI_gettypeid(tupdesc,i+1);
26412638

26422639
exec_assign_value(estate,estate->datums[row->varnos[i]],
26432640
value,valtype,&isnull);

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