[SPARK-35052] Use static treePatternBitSet for Leaf expressions like AttributeReference and Literal

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.2.0
• Component/s: Optimizer
• Assignee: Yingyi Bu
• Reporter: Yingyi Bu
• Created: 13/Apr/21 17:14
• Updated: 20/Apr/21 05:13
• Resolved: 20/Apr/21 05:13

Description

Tree patterns for leaf expression nodes like AttributeReference and Literal do not vary for different object instances and thus we should use singleton BitSet for all object instances of such a case class.

Issue Links

• links to: [Github] Pull Request #32157 (sigmod)
• links to: [Github] Pull Request #32157 (sigmod)