[HIVE-15970] Fix merge to work in presence of AST rewrites - ASF JIRA

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Details

Type: Sub-task
Status: Closed
Priority: Critical
Resolution: Fixed
Affects Version/s: 2.2.0
Fix Version/s: 2.2.0
Component/s: Transactions
Labels:
None

Target Version/s:

2.2.0

Description

The issue is that Context.getDestNamePrefix() caches ASTNode objects to figure out if a given insert branch of multi-insert is insert, update or delete but objects change when the tree is modified. For example, row-filtering/column-masking does this, but also other optimizations/features.