With reference to the post
http://archives.postgresql.org/pgsql-patches/2008-02/msg00104.phpand as stated
by -hackers and -patchers, I am submitting the diff -c output as an attachment.
Thanks, Kenneth
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Index: describe.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/bin/psql/describe.c,v
retrieving revision 1.164
diff -c -r1.164 describe.c
*** describe.c 1 Jan 2008 19:45:56 -0000 1.164
--- describe.c 3 Mar 2008 04:10:55 -0000
***************
*** 1106,1117 ****
*result3 = NULL,
*result4 = NULL,
*result5 = NULL,
! *result6 = NULL;
int check_count = 0,
index_count = 0,
foreignkey_count = 0,
rule_count = 0,
trigger_count = 0,
inherits_count = 0;
int count_footers = 0;
--- 1106,1119 ----
*result3 = NULL,
*result4 = NULL,
*result5 = NULL,
! *result6 = NULL,
! *result7 = NULL;
int check_count = 0,
index_count = 0,
foreignkey_count = 0,
rule_count = 0,
trigger_count = 0,
+ referenceby_count = 0,
inherits_count = 0;
int count_footers = 0;
***************
*** 1244,1251 ****
else
inherits_count = PQntuples(result6);
! footers = pg_malloc_zero((index_count + check_count +
rule_count + trigger_count + foreignkey_count + inherits_count + 7 + 1)
! *
sizeof(*footers));
/* print indexes */
if (index_count > 0)
--- 1246,1268 ----
else
inherits_count = PQntuples(result6);
! /* reference_by count */
!
! printfPQExpBuffer(&buf,"SELECT
c.conname,n.nspname,p2.relname,pg_catalog.pg_get_constraintdef(c.oid, true)\n"
! "FROM pg_catalog.pg_class p,
pg_catalog.pg_constraint c, pg_catalog.pg_class p2 \n"
! ",pg_catalog.pg_namespace n WHERE p.oid
= '%s' AND c.confrelid = '%s'\n"
! "AND c.conrelid = p2.oid AND n.oid
=p2.relnamespace", oid,oid);
!
! result7 = PSQLexec(buf.data, false);
! if (!result7)
! goto error_return;
! else
! referenceby_count = PQntuples(result7);
!
!
! footers = pg_malloc_zero((index_count + check_count +
rule_count + trigger_count + foreignkey_count + inherits_count +
referenceby_count + 7 + 1) * sizeof(*footers));
!
!
/* print indexes */
if (index_count > 0)
***************
*** 1481,1486 ****
--- 1498,1529 ----
}
}
+ /* print reference count details */
+ if (referenceby_count > 0)
+ {
+ printfPQExpBuffer(&buf, _("Refrenced by :"));
+ footers[count_footers++] = pg_strdup(buf.data);
+ for (i = 0; i < referenceby_count; i++)
+ {
+ const char *refbydef;
+ const char *usingpos;
+ printfPQExpBuffer(&buf, _(" \"%s\" IN
%s.%s"),
+
PQgetvalue(result7,i,0),
+
PQgetvalue(result7,i,1),
+
PQgetvalue(result7,i,2));
+
+ /* Everything after "FOREIGN KEY " is echoed
verbatim */
+ refbydef = PQgetvalue(result7, i, 3);
+ usingpos = strstr(refbydef, "FOREIGN KEY ");
+ if (usingpos)
+ refbydef = usingpos + 12;
+ appendPQExpBuffer(&buf, "%s",refbydef);
+
+ footers[count_footers++] =
pg_strdup(buf.data);
+ }
+ }
+
+
/* print inherits */
for (i = 0; i < inherits_count; i++)
{
--
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