[HIVE-140] Event Based Infrastructure for Syntax Trees in the compiler

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.3.0
• Component/s: Query Processor
• Hadoop Flags: Reviewed
• Assignee: Ashish Thusoo
• Reporter: Ashish Thusoo
• Created: 09/Dec/08 03:11
• Updated: 17/Dec/11 00:09
• Resolved: 09/Dec/08 05:47

Description

In order to refactor SemanticAnalyzer into a bunch of different components, we need to move more modular mechanisms of doing semantic analysis. One of the missing pieces here is the event based infrastructure for analyzing ASTs in the Semantic Analyzer. We will first use this infrastructure for lineage tools and then migrate the rest of the Semantic Analyzer to this infrastructure over time.