[SPARK-18174] Avoid Implicit Type Cast in Arguments of Expressions Extending String2StringExpression

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 2.0.1
• Component/s: SQL
• Labels: bulk-closed
• Assignee: Unassigned
• Reporter: Xiao Li
• Created: 30/Oct/16 19:01
• Updated: 21/May/19 04:33
• Resolved: 21/May/19 04:33

Description

For the expressions that extend String2StringExpression (lower, upper, ltrim, rtrim, trim and reverse), Analyzer should not implicitly cast the arguments to string. If users input the some data types instead of string, we should issue an exception for this misuse.

Issue Links

• links to: [Github] Pull Request #15690 (gatorsmile)