[CALCITE-3047] In JDBC adapter, expose multiple schemas of the back-end database

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.20.0
• Assignee: Unassigned
• Reporter: Julian Hyde
• Created: 03/May/19 06:45
• Updated: 23/Jul/20 17:58
• Resolved: 29/May/19 20:07

Description

In JDBC adapter, expose multiple schemas of the back-end database. We do this by adding JdbcCatalogSchema, an implementation of Schema that reads the back-end database catalog and for each schema, creates a sub-schema that is a JdbcSchema.

Also add an experimental way to create a Calcite connection with a given schema as its root schema (in this case, a JdbcCatalogSchema) rather than the usual AbstractSchema.