Trying to use liquibase on Percona gives error - mysql

Question

I am trying to generateChangeLog for a db on a percona server, i get the below error when i try to do so.
Starting Liquibase at Wed, 05 Dec 2018 22:34:37 EST (version 3.6.2 built at
2018-07-03 11:28:09)
Unexpected error running Liquibase: liquibase.exception.DatabaseException:
liquibase.exception.UnexpectedLiquibaseException: Error during testing for
MySQL/MariaDB JDBC driver bug: could not retrieve JDBC metadata information
for temporary table 'TMP_XDBOCVCKWHSQYXKP'
liquibase.exception.LiquibaseException:
liquibase.command.CommandExecutionException:
liquibase.exception.DatabaseException:
liquibase.exception.UnexpectedLiquibaseException: Error during testing for
MySQL/MariaDB JDBC driver bug: could not retrieve JDBC metadata information
for temporary table 'TMP_XDBOCVCKWHSQYXKP'
at liquibase.integration.commandline.Main.doMigration(Main.java:1043)
at liquibase.integration.commandline.Main.run(Main.java:191)
at liquibase.integration.commandline.Main.main(Main.java:129)
Caused by: liquibase.command.CommandExecutionException:
liquibase.exception.DatabaseException:
liquibase.exception.UnexpectedLiquibaseException: Error during testing
for MySQL/MariaDB JDBC driver bug: could not retrieve JDBC metadata
information for temporary table 'TMP_XDBOCVCKWHSQYXKP'
I am trying to use it via command line using below statement
liquibase --driver=com.mysql.cj.jdbc.Driver --classpath=C:/liquibase-3.6.2-
bin/jars/mysql-connector-java-8.0.13.jar --changeLogFile=db.changelog-
1.0.xml --url="jdbc:mysql://REMOTE_SERVER_IP:3306/DB_NAME?
autoReconnect=true" --username=USER_NAME --password=PASSWORD --logLevel=info
generateChangeLog
Has anyone encountered this issue before? I tried using the old and new JDBC drivers but did not help.

Answer 1

I hit the same issue. Setting the logLevel to debug you could see that Liquibase was creating and dropping a temporary table. That temporary table seemed to cause the issue.
I was able to work-around this issue by using MySQL Workbench to copy the schema to a regular MySQL instance then running generateChangeLog from there.