[CALCITE-2970] Performance issue when enabling abstract converter for EnumerableConvention

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.23.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Haisheng Yuan
• Created: 01/Apr/19 16:11
• Updated: 24/May/20 12:00
• Resolved: 05/May/20 23:58

Description

If we enable the use of abstract converter for EnumerableConvention, by making useAbstractConvertersForConversion return true, JDBCTest.testJoinManyWay will not complete.

Issue Links

• is related to: CALCITE-3357 Trivial null checking in RelSet#addAbstractConverters
• relates to: CALCITE-2064 Allow a Convention to declare which sub-classes of RelNode it handles
• relates to: CALCITE-2592 EnumerableMergeJoin is never taken
• relates to: CALCITE-2593 Sometimes fails to plan when a RelNode transform multiple collations to single collation
• links to: GitHub Pull Request #1860
• links to: GitHub Pull Request #1884