Dieter Vekeman created SPARK-25013: -------------------------------------- Summary: JDBC urls with jdbc:mariadb don't work as expected Key: SPARK-25013 URL: https://issues.apache.org/jira/browse/SPARK-25013 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 2.3.1 Reporter: Dieter Vekeman
When using the MariaDB JDBC driver, the JDBC connection url should be {code:java} jdbc:mariadb://localhost:3306/DB?user=someuser&password=somepassword {code} https://mariadb.com/kb/en/library/about-mariadb-connector-j/ However this does not work well in Spark (see below) *Workaround* The MariaDB driver also supports using mysql which does work. The problem seems to have been described and identified in: https://jira.mariadb.org/browse/CONJ-421 All works well with spark using connection string with {{"jdbc:mysql:..."}}, but not using {{"jdbc:mariadb:..."}} because MySQL dialect is then not used. when not used, defaut quote is {{"}}, not {{`}} So, some internal query generated by spark like {{SELECT `i`,`ip` FROM tmp}} will then be executed as {{SELECT "i","ip" FROM tmp}} with dataType previously retrieved, causing the exception The author of the comment says {quote}I'll make a pull request to spark so "jdbc:mariadb:" connection string can be handle{quote} Did the pull request get lost or should a new one be made? -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org