[HIVE-4534] IsNotNull and NotCol incorrectly handle nulls.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: vectorization-branch, 0.13.0
• Assignee: Jitendra Nath Pandey
• Reporter: Eric N. Hanson
• Created: 10/May/13 00:27
• Updated: 23/Oct/13 21:59
• Resolved: 22/May/13 21:08

Description

See file IsNotNull.java in package org.apache.hadoop.hive.ql.exec.vector.expressions

It never looks at the noNulls flag on the input vector, but accesses the isNull[] array anyway. This can yield incorrect results.

isRepeating and noNulls are not set in the output, which can also cause wrong results.

Issue Links

• incorporates: HIVE-4463 Add unit tests for vectorized IS NULL and IS NOT NULL filters
• incorporates: HIVE-4533 vectorized NotCol operation does not handle short-circuit evaluation for NULL propagation correctly