[TAJO-1055] ExecutorPreCompiler does not cache correctly compiled TupleComparators.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: block_iteration
• Labels: block_iteration
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 19/Sep/14 20:58
• Updated: 01/Oct/14 15:44
• Resolved: 01/Oct/14 15:41

Description

ExecutorPreCompiler compiles and caches TupleComparator in CompilationContext for sort operations. But, the current implementation misuses hash key, so it tries to compile TupleComparator for each sort operation. As a result, it causes concurrency problems.