Fix trigger example for PG 7.2 change: count(*) now returns int8.

diff --git a/doc/src/sgml/trigger.sgml b/doc/src/sgml/trigger.sgml
index 540ef0f71b3bafa94f108b6fd99a135bfa866bd3..10a49244b4cb83670ee96351efe4f2fbae5e5a53 100644 (file)
--- a/doc/src/sgml/trigger.sgml
+++ b/doc/src/sgml/trigger.sgml
@@ -1,3 +1,7 @@
+<!--
+$Header: /cvsroot/pgsql/doc/src/sgml/trigger.sgml,v 1.19 2001/12/04 02:07:11 tgl Exp $
+-->
+
  <chapter id="triggers">
   <title>Triggers</title>
 
@@ -451,7 +455,7 @@ PG_FUNCTION_INFO_V1(trigf);
 Datum
 trigf(PG_FUNCTION_ARGS)
 {
-       TriggerData *trigdata = (TriggerData *) fcinfo->context;
+       TriggerData    *trigdata = (TriggerData *) fcinfo->context;
        TupleDesc       tupdesc;
        HeapTuple       rettuple;
        char            *when;
@@ -490,8 +494,12 @@ trigf(PG_FUNCTION_ARGS)
        
        if (ret < 0)
                elog(NOTICE, "trigf (fired %s): SPI_exec returned %d", when, ret);
-       
-       i = SPI_getbinval(SPI_tuptable->vals[0], SPI_tuptable->tupdesc, 1, &amp;isnull);
+
+       /* count(*) returns int8 as of PG 7.2, so be careful to convert */
+       i = (int) DatumGetInt64(SPI_getbinval(SPI_tuptable->vals[0],
+                                             SPI_tuptable->tupdesc,
+                                             1,
+                                             &amp;isnull));
        
        elog (NOTICE, "trigf (fired %s): there are %d tuples in ttest", when, i);
        
@@ -499,7 +507,7 @@ trigf(PG_FUNCTION_ARGS)
        
        if (checknull)
        {
-               i = SPI_getbinval(rettuple, tupdesc, 1, &amp;isnull);
+               (void) SPI_getbinval(rettuple, tupdesc, 1, &amp;isnull);
                if (isnull)
                        rettuple = NULL;
        }