[FLINK-11237] Enhance LocalExecutor to wrap TableEnvironment w/ user classloader

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Table SQL / Client
• Labels: pull-request-available
• Assignee: Eron Wright
• Reporter: Eron Wright
• Created: 31/Dec/18 17:37
• Updated: 13/Mar/19 15:05
• Resolved: 13/Mar/19 15:04

Description

The SQL Client's LocalExecutor calls into the table environment to execute queries, explain statements, and much more. Any call that involves resolving a descriptor to a factory implementation must be wrapped in the user classloader. Some of the calls already are wrapped (for resolving UDFs). With new functionality coming for resolving external catalogs with a descriptor, other call sites must be wrapped.

Note that the TableEnvironment resolves the tables defined within an external catalog lazily (at query time).

Issue Links

• links to: GitHub Pull Request #7389