ColumnStore System Databases

When using ColumnStore, MariaDB Server creates a series of system databases used for operational purposes.

DatabaseDescription
calpontsysDatabase maintains table metadata about ColumnStore tables.
infinidb_querystatsDatabase maintains information about query performance. For more information, see Query Analysis.
infinidb_vtableDatabase used in creation of temporary tables in query execution. This database only exists in ColumnStore 1.2 and below. In those versions, users executing ColumnStore queries must have CREATE TEMPORARY TABLE privilege on this database. For more information, see User Management.
columnstore_infoDatabase for stored procedures used to retrieve information about ColumnStore usage. For more information, see the ColumnStore Information Schema tables.

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