[SPARK-18799] Spark SQL expose interface for plug-gable parser extension

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.0.0
• Component/s: SQL
• Flags: Important
• Assignee: Unassigned
• Reporter: Jihong Ma
• Created: 09/Dec/16 01:56
• Updated: 12/Dec/22 18:10
• Resolved: 11/Dec/16 09:16

Description

There used to be an interface to plug a parser extension through ParserDialect in HiveContext in all Spark 1.x version. Starting Spark 2.x release, Apache Spark moved to the new parser (Antlr4), there is no longer a way to extend the default SQL parser through SparkSession interface, however this is really a pain and hard to work around it when integrating other data source with Spark with extended support such as Insert, Update, Delete statement or any other data management statement.

It would be very nice to continue to expose an interface for parser extension to make data source integration easier and smoother.

Issue Links

• duplicates: SPARK-18127 Add hooks and extension points to Spark