[ASTERIXDB-3289] MurmurHash128Bit can read the wrong field data

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.9
• Fix Version/s: 0.9.9
• Component/s: OTH - Other
• Labels: triaged
• Assignee: Wail Y. Alkowaileet
• Reporter: Wail Y. Alkowaileet
• Created: 25/Oct/23 01:43
• Updated: 27/Oct/23 17:07
• Resolved: 25/Oct/23 21:20

Description

The hash computer (namely MurmurHash128Bit) reads dummy field data as follows:

tuple.getFieldData(DUMMY_FIELD) 

PKs in columnar tuples are stored in different buffers. Thus, the current implementation of MurmurHash128Bit will always read the data of the first PK even if the second PK is required.