MDEV-23365: Assertion `!is_set() || (m_status == DA_OK_BULK && is_bulk_op())'

failed upon killed TRUNCATE

Note: This is a backport of 1cb4caa6 from
10.3
Analysis: Assertion failure happens because less session memory is set and so
table can't be reopened. So the statement can't be used. This error goes
unreported.
Fix: Return the error state.

mysql-test/r/truncate.result

@@ -159,3 +159,25 @@ HANDLER t1 READ FIRST;
 ERROR 42S02: Unknown table 't1' in HANDLER
 DROP TABLE t1;
 # End of 6.0 tests
+#
+# 10.2 Test
+#
+# MDEV-23365: Assertion `!is_set() || (m_status == DA_OK_BULK &&
+# is_bulk_op())' failed upon killed TRUNCATE
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+LOCK TABLE t1 READ;
+connect  con1,localhost,root,,test;
+SET SESSION max_session_mem_used= 65536;
+LOCK TABLE t1 WRITE;
+connection default;
+SELECT * FROM t1;
+a
+UNLOCK TABLES;
+connection con1;
+TRUNCATE TABLE t1;
+ERROR HY000: The MariaDB server is running with the --max-thread-mem-used=65536 option so it cannot execute this statement
+disconnect con1;
+connection default;
+DROP TABLE t1;
+# End of 10.2 Test

mysql-test/t/truncate.test

@@ -163,3 +163,32 @@ DROP TABLE t1;
 
 --echo # End of 6.0 tests
 
+--echo #
+--echo # 10.2 Test
+--echo #
+--echo # MDEV-23365: Assertion `!is_set() || (m_status == DA_OK_BULK &&
+--echo # is_bulk_op())' failed upon killed TRUNCATE
+--echo #
+
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+LOCK TABLE t1 READ;
+
+--connect (con1,localhost,root,,test)
+SET SESSION max_session_mem_used= 65536;
+--send
+  LOCK TABLE t1 WRITE;
+
+--connection default
+SELECT * FROM t1;
+UNLOCK TABLES;
+
+--connection con1
+--reap
+--error ER_OPTION_PREVENTS_STATEMENT
+TRUNCATE TABLE t1;
+
+--disconnect con1
+--connection default
+DROP TABLE t1;
+
+--echo # End of 10.2 Test

sql/sql_truncate.cc

@@ -426,8 +426,10 @@ bool Sql_cmd_truncate_table::truncate_table(THD *thd, TABLE_LIST *table_ref)
       error= dd_recreate_table(thd, table_ref->db, table_ref->table_name);
 
       if (thd->locked_tables_mode && thd->locked_tables_list.reopen_tables(thd, false))
+      {
           thd->locked_tables_list.unlink_all_closed_tables(thd, NULL, 0);
-
+          error= 1;
+      }
       /* No need to binlog a failed truncate-by-recreate. */
       binlog_stmt= !error;
     }