[SPARK-9938] Constant folding in binaryComparison

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: SQL
• Assignee: Unassigned
• Reporter: Yijie Shen
• Created: 13/Aug/15 14:16
• Updated: 25/Mar/19 07:44
• Resolved: 08/Oct/16 05:07

Description

When we are comparing a int column with long literal, a < Int.MaxValue.toLong + 1L as a example, the analyzed plan would be LessThan(Cast(a, LongType), Literal).
The result of predicate is determined and we could fold this at optimization phase.

Issue Links

• relates to: SPARK-9182 filter and groupBy on DataFrames are not passed through to jdbc source
• links to: [Github] Pull Request #8165 (yjshen)