From 86fa0697c84949f28efc9a2ad91a7dfbe78d2dd0 Mon Sep 17 00:00:00 2001 From: S H Mohanjith Date: Thu, 5 Dec 2013 01:09:23 +0200 Subject: [PATCH] SHOW TABLES is extremely resource intesive query, use SHOW TABLES LIKE instead --- wp-admin/install-helper.php | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/wp-admin/install-helper.php b/wp-admin/install-helper.php index c98b28c..e2405bc 100644 --- a/wp-admin/install-helper.php +++ b/wp-admin/install-helper.php @@ -53,7 +53,7 @@ if ( ! function_exists('maybe_create_table') ) : */ function maybe_create_table($table_name, $create_ddl) { global $wpdb; - foreach ($wpdb->get_col("SHOW TABLES",0) as $table ) { + foreach ($wpdb->get_col("SHOW TABLES LIKE '{$table_name}'",0) as $table ) { if ($table == $table_name) { return true; } @@ -61,7 +61,7 @@ function maybe_create_table($table_name, $create_ddl) { //didn't find it try to create it. $wpdb->query($create_ddl); // we cannot directly tell that whether this succeeded! - foreach ($wpdb->get_col("SHOW TABLES",0) as $table ) { + foreach ($wpdb->get_col("SHOW TABLES LIKE '{$table_name}'",0) as $table ) { if ($table == $table_name) { return true; } -- 1.7.11.1