Fix trigger example for PG 7.2 change: count(*) now returns int8.
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0532175496
1 changed files with 12 additions and 4 deletions
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@ -1,3 +1,7 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/trigger.sgml,v 1.19 2001/12/04 02:07:11 tgl Exp $
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-->
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<chapter id="triggers">
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<title>Triggers</title>
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@ -451,7 +455,7 @@ PG_FUNCTION_INFO_V1(trigf);
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Datum
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trigf(PG_FUNCTION_ARGS)
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{
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TriggerData *trigdata = (TriggerData *) fcinfo->context;
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TriggerData *trigdata = (TriggerData *) fcinfo->context;
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TupleDesc tupdesc;
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HeapTuple rettuple;
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char *when;
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@ -490,8 +494,12 @@ trigf(PG_FUNCTION_ARGS)
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if (ret < 0)
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elog(NOTICE, "trigf (fired %s): SPI_exec returned %d", when, ret);
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i = SPI_getbinval(SPI_tuptable->vals[0], SPI_tuptable->tupdesc, 1, &isnull);
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/* count(*) returns int8 as of PG 7.2, so be careful to convert */
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i = (int) DatumGetInt64(SPI_getbinval(SPI_tuptable->vals[0],
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SPI_tuptable->tupdesc,
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1,
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&isnull));
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elog (NOTICE, "trigf (fired %s): there are %d tuples in ttest", when, i);
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@ -499,7 +507,7 @@ trigf(PG_FUNCTION_ARGS)
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if (checknull)
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{
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i = SPI_getbinval(rettuple, tupdesc, 1, &isnull);
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(void) SPI_getbinval(rettuple, tupdesc, 1, &isnull);
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if (isnull)
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rettuple = NULL;
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}
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