References: MDEV-4953

Calling ha_start_of_new_statement() for all table handlers under partition engine.
This will enable innodb transactions to be declared as read/write.

sql/ha_partition.h

@@ -1171,6 +1171,13 @@ class ha_partition :public handler
       DBUG_ASSERT(h == m_file[i]->ht);
     return h;
   }
+#ifdef WITH_WSREP
+  void wsrep_reset_files()
+  {
+    for (uint i=0; i < m_tot_parts; i++)
+      m_file[i]->ha_start_of_new_statement();
+  }
+#endif /* WITH_WSREP */
 };
 
 #endif /* HA_PARTITION_INCLUDED */

sql/table.cc

@@ -40,6 +40,9 @@
 #include "sql_select.h"
 #include "sql_derived.h"
 #include "mdl.h"                 // MDL_wait_for_graph_visitor
+#ifdef WITH_WSREP
+#include "ha_partition.h"
+#endif /* WITH_WSREP */
 
 /* INFORMATION_SCHEMA name */
 LEX_STRING INFORMATION_SCHEMA_NAME= {C_STRING_WITH_LEN("information_schema")};
@@ -3930,6 +3933,12 @@ void TABLE::init(THD *thd, TABLE_LIST *tl)
   insert_values= 0;
   fulltext_searched= 0;
   file->ha_start_of_new_statement();
+#ifdef WITH_WSREP
+  if (file->ht->db_type == DB_TYPE_PARTITION_DB)
+  {
+    ((ha_partition*)file)->wsrep_reset_files();
+  }
+#endif
   reginfo.impossible_range= 0;
   created= TRUE;