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  1. MariaDB Server
  2. MDEV-10924

CREATE OR REPLACE TRIGGER which fails on PRECEDES/FOLLOWS drops the trigger, but isn't written to binlog; replication fails

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      --source include/master-slave.inc
      --source include/have_binlog_format_mixed.inc
       
      CREATE TABLE t1 (i INT);
       
      CREATE OR REPLACE TRIGGER tr BEFORE INSERT ON t1 FOR EACH ROW SET @a=1;
      --error ER_REFERENCED_TRG_DOES_NOT_EXIST
      CREATE OR REPLACE TRIGGER tr BEFORE DELETE ON t1 FOR EACH ROW PRECEDES non_existing_trigger SET @a=2;
      SHOW TRIGGERS;
       
      --sync_slave_with_master
      SHOW TRIGGERS;
      

      Result of this test case is that master and slave go out of sync: master has no triggers, but slave still has tr.
      That's because when CREATE OR REPLACE TRIGGER, it still drops the trigger, but nothing is written to the binary log.

      It's possible that the underlying problem exists in earlier versions, but I couldn't reproduce it with a few other errors which can happen on trigger re-creation.

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              Assignee:
              monty Michael Widenius
              Reporter:
              elenst Elena Stepanova
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