[DRILL-1311] Hash join does not support schema changes error

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.7.0
• Assignee: Hanifi Gunes
• Reporter: Neeraja
• Created: 19/Aug/14 01:04
• Updated: 20/Nov/14 20:17
• Resolved: 20/Nov/14 20:17

Description

• Create a directory with a couple of JSON files. One with columns a,b and second with columns a,b,c.
• a & b attributes have same data types across both the files
• create a view by selecting columns a, b from the directory
• Join the view with any other table

An error shows up indicating that 'Hash join does not support schema changes'.
There is a schema change across the files with a new element being added, however given that specific columns a,b are selected in the view, expect that query works fine.

Issue Links

• is duplicated by: DRILL-1324 Detect schema changes when complex vector changes internally