MXS-2250 Reveal table information for 'DESCRIBE tbl'

When a statement like 'DESCRIBE tbl' is classified, the table
name will now be available so that a router can check whether the
table is a temporary one. In that case, the statement must be sent
to the master.

query_classifier/test/compare.cc

@@ -37,11 +37,15 @@ using std::ostream;
 using std::string;
 using std::stringstream;
 
+#if !defined(MYSQL_VERSION_MAJOR)
+#define USING_MARIADB_103
+#else
 #if MYSQL_VERSION_MAJOR == 10 && MYSQL_VERSION_MINOR == 3
 #define USING_MARIADB_103
 #else
 #undef USING_MARIADB_103
 #endif
+#endif
 
 namespace
 {

query_classifier/test/create.test

@@ -981,7 +981,8 @@ set names utf8;
 # MXS: qc_get_type              : ERR: QUERY_TYPE_WRITE != QUERY_TYPE_WRITE|QUERY_TYPE_COMMIT
 # MXS: qc_get_operation         : ERR: QUERY_OP_UNDEFINED != QUERY_OP_CREATE
 # MXS: qc_mysqlembedded sees the type as SQLCOM_END when figuring out the type.
-use имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+# MXS: use имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+# MXS: qc_get_database_names    : ERR: Ð != имя_базы_в_кодировке_утф8_длиной_больше_чем_45
 select database();
 use test;