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> Having read the list, and noticed the message about table inheritance I 

> thought that I would see if I could come up with a simple solution, and
> have my first delve into the code for PostgreSQL.
>
> Attached is a diff against 7.3.3 source, of changes to describe.c for
> psql. This should print out a list of parent tables in a similar style
> to that of the index listing. I have done some testing on my side and it
> all seems fine, can some other people have a quick look? What do people
> think? Useful?

Nick Barr
This commit is contained in:
Bruce Momjian 2003-07-25 21:42:26 +00:00
parent b92d055b56
commit 57748fc25d
1 changed files with 31 additions and 4 deletions
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35
src/bin/psql/describe.c
View File

@ -3,7 +3,7 @@
*
* Copyright 2000-2002 by PostgreSQL Global Development Group
*
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.79 2003/07/23 08:47:39 petere Exp $
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.80 2003/07/25 21:42:26 momjian Exp $
*/
#include "postgres_fe.h"
#include "describe.h"
@ -928,12 +928,14 @@ describeOneTableDetails(const char *schemaname,
*result2 = NULL,
*result3 = NULL,
*result4 = NULL,
*result5 = NULL;
*result5 = NULL,
*result6 = NULL;
int check_count = 0,
index_count = 0,
foreignkey_count = 0,
rule_count = 0,
trigger_count = 0;
trigger_count = 0,
inherits_count = 0;
int count_footers = 0;
/* count indexes */
@ -1037,7 +1039,16 @@ describeOneTableDetails(const char *schemaname,
foreignkey_count = PQntuples(result5);
}
footers = xmalloczero((index_count + check_count + rule_count + trigger_count + foreignkey_count + 6)
/* count inherited tables */
printfPQExpBuffer(&buf, "SELECT c.relname FROM pg_catalog.pg_class c, pg_catalog.pg_inherits i WHERE c.oid=i.inhparent AND i.inhrelid = '%s' ORDER BY inhseqno ASC", oid);
result6 = PSQLexec(buf.data, false);
if (!result6)
goto error_return;
else
inherits_count = PQntuples(result6);
footers = xmalloczero((index_count + check_count + rule_count + trigger_count + foreignkey_count + inherits_count + 6)
* sizeof(*footers));
/* print indexes */
@ -1140,6 +1151,21 @@ describeOneTableDetails(const char *schemaname,
}
}
/* print inherits */
for (i = 0; i < inherits_count; i++)
{
char *s = _("Inherits");
if (i == 0)
printfPQExpBuffer(&buf, "%s: %s", s, PQgetvalue(result6, i, 0));
else
printfPQExpBuffer(&buf, "%*s %s", (int) strlen(s), "", PQgetvalue(result6, i, 0));
if (i < inherits_count - 1)
appendPQExpBuffer(&buf, ",");
footers[count_footers++] = xstrdup(buf.data);
}
/* end of list marker */
footers[count_footers] = NULL;
@ -1148,6 +1174,7 @@ describeOneTableDetails(const char *schemaname,
PQclear(result3);
PQclear(result4);
PQclear(result5);
PQclear(result6);
}
printTable(title.data, headers,