MySQL#
Connect MySQL with a connection string, optionally through an SSH tunnel. The source writes tables and columns discovered from the selected database under titan.mysql_<database_name>.
Connect MySQL#
Open Apps, choose Connect app, and select MySQL.
Enter a connection string, optionally through an SSH tunnel.
Review the tables, then save the source.
Watch Sync history until the first run completes.
Credentials are stored as secrets. They never become lake columns or appear in query results.
Sync behavior#
Supernova reads source metadata before each run. Two connections that would resolve to the same lake schema are refused.
A new source syncs when you connect it and then follows its schedule. The default recurring interval is 4 hours. An interrupted run keeps its completed progress and retries safely.
Every lake table also has the system columns _synced_at and _deleted; the column reference below lists source columns only.
Table reference#
Supernova discovers this reference from the connected account. information_schema supplies source schemas, tables, columns, keys, and types. The Tables tab shows the exact reference for your database.
Open Apps → MySQL → Tables after the first discovery run to see every exact table name, column name, type, and sync selection. Dynamic fields cannot be listed truthfully before an account is connected.
Deletes and history#
Rows are merged by their source key. When the source can prove that a row was deleted, Supernova keeps the row and sets _deleted so queries can choose whether to include history. Filter current-state queries with where not _deleted.