[HIVE-26339] Vectorized LIKE UDF optimization

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.1.0, 4.0.1
• Component/s: Vectorization
• Labels: hive-4.0.1-merged pull-request-available
• Target Version/s: 4.1.0
• Assignee: Ryu Kobayashi
• Reporter: Ryu Kobayashi
• Created: 17/Jun/22 08:28
• Updated: 24/Sep/24 02:15
• Resolved: 19/Apr/24 12:40

Description

Fixed https://issues.apache.org/jira/browse/HIVE-26047 without using regular expressions. Current code also confirmed that the current regular expression pattern cannot be supported by the following LIKE patterns.

End pattern

%abc\%def 

Start pattern

abc\%def% 

Issue Links

• relates to: HIVE-26047 Vectorized LIKE UDF should use Re2J regex to address JDK-8203458
• links to: GitHub Pull Request #3384
• links to: GitHub Pull Request #4998