[BEAM-2446] restrict scope of BeamSqlEnv in dsl query

• Type: Improvement
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: Not applicable
• Component/s: dsl-sql
• Labels: Done dsl_sql_merge
• Assignee: Mingmin Xu
• Reporter: Mingmin Xu
• Created: 13/Jun/17 23:15
• Updated: 24/Jul/20 20:20
• Resolved: 20/Jun/17 17:44

Description

Currently, the scope of BeamSqlEnv is global, that means all tables are accesible for each query, although it may not be related to the input PCollections in DSL methods.

For BeamSqlCli, it's reasonable to have a session BeamSqlEnv for each SQL client.

For BeamSql, each query should have its own BeamSqlEnv, which only has the input tables/PCollections.

Issue Links

• links to: GitHub Pull Request #3372