[SPARK-13091] Rewrite/Propagate constraints for Aliases

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: SQL
• Assignee: Sameer Agarwal
• Reporter: Sameer Agarwal
• Created: 29/Jan/16 20:19
• Updated: 05/Mar/19 18:54
• Resolved: 19/Feb/16 22:48

Description

We'd want to duplicate constraints when there is an alias (i.e. for "SELECT a, a AS b", any constraints on a now apply to b)

This is a follow up task based on marmbrus's suggestion in https://docs.google.com/document/d/1WQRgDurUBV9Y6CWOBS75PQIqJwT-6WftVa18xzm7nCo/edit#heading=h.6hjcndo36qze

Issue Links

• links to: [Github] Pull Request #11144 (sameeragarwal)