[IMPALA-8254] Compute stats fails if COMPRESSION_CODEC is not default

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: Impala 3.2.0
• Component/s: Backend
• Labels: ramp-up
• Epic Color: ghx-label-5
• Assignee: Fredy Wijaya
• Reporter: Csaba Ringhofer
• Created: 27/Feb/19 17:50
• Updated: 05/Mar/19 23:05
• Resolved: 05/Mar/19 15:26

Description

To reproduce:
set compression_codec=gzip;
>COMPRESSION_CODEC set to gzip
compute stats functional.alltypes;
>Query: compute stats functional.alltypes
>ERROR: Invalid compression codec: 2

This kind of issue is typical with query options and compute stats - compute stats converts enums to their number representation, which is handled by most query options, see https://github.com/apache/impala/blob/adced30896ade0f71e64cc2d5bad1cd9f43119b7/be/src/service/query-options.cc#L532 for an example.