#471800 follow-up by stella: Fixing comments on MySQL system queries.

includes/database/mysql/schema.inc

@@ -372,11 +372,11 @@ public function getComment($table, $column = NULL) {
     if (isset($column)) {
       $condition->condition('column_name', $column);
       $condition->compile($this->connection);
-      // Don't use {} around information_schema table.
+      // Don't use {} around information_schema.columns table.
       return db_query("SELECT column_comment FROM information_schema.columns WHERE " . (string) $condition, $condition->arguments())->fetchField();
     }
     $condition->compile($this->connection);
-    // Don't use {} around information_schema table.
+    // Don't use {} around information_schema.tables table.
     $comment = db_query("SELECT table_comment FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())->fetchField();
     // Work-around for MySQL 5.0 bug http://bugs.mysql.com/bug.php?id=11379
     return preg_replace('/; InnoDB free:.*$/', '', $comment);

includes/database/pgsql/schema.inc

@@ -51,7 +51,7 @@ public function queryTableInformation($table) {
         'blob_fields' => array(),
         'sequences' => array(),
       );
-      // Don't use {} around information_schema table.
+      // Don't use {} around information_schema.columns table.
       $result = db_query("SELECT column_name, data_type, column_default FROM information_schema.columns WHERE table_schema = :schema AND table_name = :table AND (data_type = 'bytea' OR (numeric_precision IS NOT NULL AND column_default LIKE :default))", array(':schema' => $schema, ':table' => $table_name, ':default' => '%nextval%'));
       foreach ($result as $column) {
         if ($column->data_type == 'bytea') {

includes/database/schema.inc

@@ -187,7 +187,7 @@ public function tableExists($table) {
     // concatination for conditionals like this however, we
     // couldn't use db_select() here because it would prefix
     // information_schema.tables and the query would fail.
-    // Don't use {} around information_schema table.
+    // Don't use {} around information_schema.tables table.
     return db_query("SELECT table_name FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())->fetchField();
   }
 
@@ -207,7 +207,7 @@ public function findTables($table_expression) {
     // concatination for conditionals like this however, we
     // couldn't use db_select() here because it would prefix
     // information_schema.tables and the query would fail.
-    // Don't use {} around information_schema table.
+    // Don't use {} around information_schema.tables table.
     return db_query("SELECT table_name FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())->fetchAllKeyed(0, 0);
   }
 
@@ -222,7 +222,7 @@ public function columnExists($table, $column) {
     // concatination for conditionals like this however, we
     // couldn't use db_select() here because it would prefix
     // information_schema.tables and the query would fail.
-    // Don't use {} around information_schema table.
+    // Don't use {} around information_schema.columns table.
     return db_query("SELECT column_name FROM information_schema.columns WHERE " . (string) $condition, $condition->arguments())->fetchAllKeyed(0, 0);
   }