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Rejigger do_lo_list's query so that obj_description() is evaluated only 

once per distinct LO, not once per pg_largeobject tuple.
This commit is contained in:
Tom Lane 2000-10-24 04:13:28 +00:00
parent a9b6b01ee8
commit 4b70629b92
1 changed files with 3 additions and 4 deletions
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7
src/bin/psql/large_obj.c
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@ -3,7 +3,7 @@
*
* Copyright 2000 by PostgreSQL Global Development Group
*
* $Header: /cvsroot/pgsql/src/bin/psql/large_obj.c,v 1.11 2000/10/24 01:38:39 tgl Exp $
* $Header: /cvsroot/pgsql/src/bin/psql/large_obj.c,v 1.12 2000/10/24 04:13:28 tgl Exp $
*/
#include "postgres.h"
#include "large_obj.h"
@ -328,9 +328,8 @@ do_lo_list(void)
printQueryOpt myopt = pset.popt;
strcpy(buf,
"SELECT DISTINCT loid as \"ID\",\n"
" obj_description(loid) as \"Description\"\n"
"FROM pg_largeobject\n"
"SELECT loid as \"ID\", obj_description(loid) as \"Description\"\n"
"FROM (SELECT DISTINCT loid FROM pg_largeobject) x\n"
"ORDER BY \"ID\"");
res = PSQLexec(buf);