[CALCITE-2887] Improve performance of RexLiteral#toJavaString

• Type: Improvement
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.18.0
• Fix Version/s: 1.19.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Stamatis Zampetakis
• Reporter: Stamatis Zampetakis
• Created: 01/Mar/19 17:13
• Updated: 25/Mar/19 00:10
• Resolved: 05/Mar/19 23:06

Description

RexLiteral#toJavaString is a method that is called many times for various purposes notably when computing digests. In some use-cases the profiler shows that 10% of the total time is spend on this method.

Issue Links

• links to: GitHub Pull Request #1080