add mysql_optional as dsn parameter #1022
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This pull requests adds
mysql_ssl_optionas an dsn paramter to pt-online-schema-change.Why?
Upgrading debian from bullseye to bookworm or trixie changes the behaviour of perl DBI. As a consequence perl DBI is not able to use ssl anymore when enforced (pt-online-schema-change raises the exception "SSL connection error: Enforcing SSL encryption is not supported").
See: Debian Bug Report 1032074
I found no fix for this (using official sources). The only workaround to make it work is calling pt-online-schema-change with both
mysql_ssl=1andmysl_ssl_optional=1Please advice how and if tests or documentation need to be adjusted.