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Commitaab0b8f

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I was tinkering with creating rules on views (so, for instance, one could
insert on a view), and noticed that psql wouldn't show the list of rulesset up on a view, like it does for tables.The fix was extremely simple, so I figured I'd share it. Not sure whatthe standard is for communicating these things, so I've attached the difffile for /src/bin/psql/describe.c.Paul (?)
1 parent9f20765 commitaab0b8f

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‎src/bin/psql/describe.c

Lines changed: 44 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*
44
* Copyright 2000 by PostgreSQL Global Development Group
55
*
6-
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.47 2002/03/20 19:44:45 tgl Exp $
6+
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.48 2002/04/05 11:52:38 momjian Exp $
77
*/
88
#include"postgres_fe.h"
99
#include"describe.h"
@@ -692,12 +692,51 @@ describeTableDetails(const char *name, bool desc)
692692
}
693693
elseif (view_def)
694694
{
695+
PGresult*result=NULL;
696+
intrule_count=0;
697+
intcount_footers=0;
698+
699+
/* count rules */
700+
if (!error&&tableinfo.hasrules)
701+
{
702+
sprintf(buf,
703+
"SELECT r.rulename\n"
704+
"FROM pg_rewrite r, pg_class c\n"
705+
"WHERE c.relname='%s' AND c.oid = r.ev_class\n"
706+
"AND r.rulename NOT LIKE '_RET%%'",
707+
name);
708+
result=PSQLexec(buf);
709+
if (!result)
710+
error= true;
711+
else
712+
rule_count=PQntuples(result);
713+
}
714+
695715
/* Footer information about a view */
696-
footers=xmalloc(2*sizeof(*footers));
697-
footers[0]=xmalloc(64+strlen(view_def));
698-
snprintf(footers[0],64+strlen(view_def),
716+
footers=xmalloc((rule_count+2)*sizeof(*footers));
717+
footers[count_footers]=xmalloc(64+strlen(view_def));
718+
snprintf(footers[count_footers],64+strlen(view_def),
699719
_("View definition: %s"),view_def);
700-
footers[1]=NULL;
720+
count_footers++;
721+
722+
/* print rules */
723+
for (i=0;i<rule_count;i++)
724+
{
725+
char*s=_("Rules");
726+
727+
if (i==0)
728+
snprintf(buf,sizeof(buf),"%s: %s",s,PQgetvalue(result,i,0));
729+
else
730+
snprintf(buf,sizeof(buf),"%*s %s", (int)strlen(s),"",PQgetvalue(result,i,0));
731+
if (i<rule_count-1)
732+
strcat(buf,",");
733+
734+
footers[count_footers++]=xstrdup(buf);
735+
}
736+
PQclear(result);
737+
738+
footers[count_footers]=NULL;
739+
701740
}
702741
elseif (tableinfo.relkind=='r')
703742
{

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