Fix saving pipeline state using record_last_run setting

[palin]

This fixes the issue with clean run: #373

The state should not be written if the record_last_run setting is false.

[bulletproof-coding]

logstash-plugins/logstash-integration-jdbc#121 (comment)

clean_run => true
record_last_run => true
last_run_metadata_path => "/..."
seems to be the solution and that is why this was not merged.

[s137]

Why is this not merged? The issue persists to this day... We applied the patch manually and it works...

I don't think this patch will be merged here, because the plugin is now part of the jdbc-integration-plugin in this repository, where I created the same issue, when I stumbled upon it, but the solution is of course the same regardless.

Honestly I just made another jdbc-input which uses a separate query without :sql_last_value to work around it. It's not ideal, but it does the job.

[bulletproof-coding]

@s137 commented also there. See my previous message from here for the link.

Update logstash-plugins/logstash-integration-jdbc#121 (comment)