Index: trunk/wp-includes/wp-db.php
===================================================================
--- trunk/wp-includes/wp-db.php	(revision 39138)
+++ trunk/wp-includes/wp-db.php	(working copy)
@@ -3037,14 +3037,16 @@
 			return str_replace( '`', '', $maybe[1] );
 		}
 
-		// SHOW TABLE STATUS and SHOW TABLES
-		if ( preg_match( '/^\s*(?:'
-				. 'SHOW\s+TABLE\s+STATUS.+(?:LIKE\s+|WHERE\s+Name\s*=\s*)'
-				. '|SHOW\s+(?:FULL\s+)?TABLES.+(?:LIKE\s+|WHERE\s+Name\s*=\s*)'
-				. ')\W((?:[0-9a-zA-Z$_.`-]|[\xC2-\xDF][\x80-\xBF])+)\W/is', $query, $maybe ) ) {
-			return str_replace( '`', '', $maybe[1] );
+		// SHOW TABLE STATUS and SHOW TABLES WHERE Name = 'wp_posts'
+		if ( preg_match( '/^\s*SHOW\s+(?:TABLE\s+STATUS|(?:FULL\s+)?TABLES).+WHERE\s+Name\s*=\s*("|\')((?:[0-9a-zA-Z$_.-]|[\xC2-\xDF][\x80-\xBF])+)\\1/is', $query, $maybe ) ) {
+			return $maybe[2];
 		}
 
+		// SHOW TABLE STATUS LIKE and SHOW TABLES LIKE 'wp\_123\_%'
+		if ( preg_match( '/^\s*SHOW\s+(?:TABLE\s+STATUS|(?:FULL\s+)?TABLES)\s+(?:WHERE\s+Name\s+)?LIKE\s*("|\')((?:[\\\\0-9a-zA-Z$_.`-]|[\xC2-\xDF][\x80-\xBF])+)%?\\1/is', $query, $maybe ) ) {
+			return str_replace( '\\_', '_', $maybe[2] );
+		}
+
 		// Big pattern for the rest of the table-related queries.
 		if ( preg_match( '/^\s*(?:'
 				. '(?:EXPLAIN\s+(?:EXTENDED\s+)?)?SELECT.*?\s+FROM'