git.postgresql.org Git - postgresql.git/commitdiff

2009年7月13日 22:56:30 +0000 (22:56 +0000)

2009年7月13日 22:56:30 +0000 (22:56 +0000)

No need for VACUUM ANAYZE of newly created/populated temp table, just
use analyze.

No need to apologize for using subquery in DELETE anymore.

index b26b42cf7a908828adcd21b598c454d01a21fd8c..a0a7d57922b1e41642e850388dcf18742dcddfcc 100644 (file)

* IDENTIFICATION

- * $PostgreSQL: pgsql/contrib/vacuumlo/vacuumlo.c,v 1.41 2009年02月27日 09:30:21 petere Exp $

+ * $PostgreSQL: pgsql/contrib/vacuumlo/vacuumlo.c,v 1.42 2009年07月13日 22:56:30 momjian Exp $

*-------------------------------------------------------------------------

@@ -155,11 +155,11 @@ vacuumlo(char *database, struct _param * param)

PQclear(res);

- * Vacuum the temp table so that planner will generate decent plans for

+ * Analyze the temp table so that planner will generate decent plans for

* the DELETEs below.

buf[0] = '0円';

- strcat(buf, "VACUUM ANALYZE vacuum_l");

+ strcat(buf, "ANALYZE vacuum_l");

res = PQexec(conn, buf);

if (PQresultStatus(res) != PGRES_COMMAND_OK)

{

@@ -216,11 +216,6 @@ vacuumlo(char *database, struct _param * param)

if (param->verbose)

fprintf(stdout, "Checking %s in %s.%s\n", field, schema, table);

- /*

- * The "IN" construct used here was horribly inefficient before

- * Postgres 7.4, but should be now competitive if not better than the

- * bogus join we used before.

- */

snprintf(buf, BUFSIZE,

"DELETE FROM vacuum_l "

"WHERE lo IN (SELECT \"%s\" FROM \"%s\".\"%s\")",

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