#4676 get alter table truncate partition working on 5.5 refs[t:4676]

git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@41588 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/ha_tokudb.cc

@@ -6171,7 +6171,11 @@ get_row_type_for_key(DB *file)
 }
 
 enum row_type
+#if MYSQL_VERSION_ID >= 50521
+ha_tokudb::get_row_type(void) const
+#else
 ha_tokudb::get_row_type(void)
+#endif
 {
     return get_row_type_for_key(share->file);
 }
@@ -8108,8 +8112,7 @@ volatile int ha_tokudb_truncate_wait = 0; // debug
 int ha_tokudb::truncate() {
     TOKUDB_DBUG_ENTER("truncate");
     while (ha_tokudb_truncate_wait) sleep(1); // debug
-
-    int error = delete_all_rows();
+    int error = delete_all_rows_internal();
     TOKUDB_DBUG_RETURN(error);
 }
 
@@ -8122,10 +8125,21 @@ int ha_tokudb::truncate() {
 // locks:  if we have an exclusive table write lock, all of the concurrency
 // issues go away.
 // returns: 0 if success
-
 int ha_tokudb::delete_all_rows() {
     TOKUDB_DBUG_ENTER("delete_all_rows");
     int error = 0;
+    if (thd_sql_command(ha_thd()) != SQLCOM_TRUNCATE) {
+        share->try_table_lock = true;
+        error = HA_ERR_WRONG_COMMAND;
+    }
+    if (error == 0)
+        error = delete_all_rows_internal();
+    TOKUDB_DBUG_RETURN(error);
+}
+
+int ha_tokudb::delete_all_rows_internal() {
+    TOKUDB_DBUG_ENTER("delete_all_rows_internal");
+    int error = 0;
     uint curr_num_DBs = 0;
     DB_TXN* txn = NULL;
 
@@ -8135,12 +8149,6 @@ int ha_tokudb::delete_all_rows() {
     error = db_env->txn_begin(db_env, 0, &txn, 0);
     if (error) { goto cleanup; }
 
-    if (thd_sql_command(ha_thd()) != SQLCOM_TRUNCATE) {
-        share->try_table_lock = true;
-        error = HA_ERR_WRONG_COMMAND;
-        goto cleanup;
-    }
-
     curr_num_DBs = table->s->keys + test(hidden_primary_key);
     for (uint i = 0; i < curr_num_DBs; i++) {
         error = share->key_file[i]->pre_acquire_fileops_lock(

storage/tokudb/ha_tokudb.h

@@ -657,7 +657,11 @@ class ha_tokudb : public handler {
         THD* thd
         );
 
+#if MYSQL_VERSION_ID >= 50521
+    enum row_type get_row_type() const;
+#else
     enum row_type get_row_type();
+#endif
 
 private:
     int read_full_row(uchar * buf);
@@ -665,6 +669,7 @@ class ha_tokudb : public handler {
     int get_next(uchar* buf, int direction);
     int read_data_from_range_query_buff(uchar* buf, bool need_val);
     void invalidate_bulk_fetch();
+    int delete_all_rows_internal();
 };
 
 int open_status_dictionary(DB** ptr, const char* name, DB_TXN* txn);