When binlog encounters a failed DDL statement (contains if not exists / if exists), it will report an error

[okJiang]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?

When binlog encounters a failed DDL statement (contains if not exists / if exists), it will report an error.

2. What did you expect to see?

Skip these DDL

3. What did you see instead?

Report error

4. Please provide the relate downstream type and version of drainer.
   (run drainer -V in terminal to get drainer's version)

Reason

The reason is the failed DDL job's SchemaVersion is zero, which is a special case. So we can skip them.

[mayjiang0203]

/remove-label affects-%207.1

[ti-chi-bot]

@mayjiang0203: The label(s) affects-%207.1 cannot be applied. These labels are supported: contribution, duplicate, feature-request, first-time-contributor, invalid, need-update-ansible, need-update-docs, needs-cherry-pick-release-5.1, needs-cherry-pick-release-5.2, needs-cherry-pick-release-5.3, needs-cherry-pick-release-5.4, needs-cherry-pick-release-6.0, needs-cherry-pick-release-6.1, needs-cherry-pick-release-6.2, needs-cherry-pick-release-6.3, needs-cherry-pick-release-6.4, needs-cherry-pick-release-6.5, needs-cherry-pick-release-6.6, needs-cherry-pick-release-7.0, needs-cherry-pick-release-7.1, p0, p1, p2, question, wontfix.

In response to this:

/remove-label affects-%207.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.