Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/24586 )

Change subject: IMPALA-15184: Switch tpcds json from bzip to LZ4
......................................................................


Patch Set 2:

> It makes sense to me to use a faster compression algorithm than
 > bzip. Does the disk usage change much for this table? Another
 > option is ZSTD which is almost as fast to compress as LZ4 with a
 > higher compression ratio.

Checked locally, writing looks even a bit faster for zstd than for lz4.

sizes of store_sales (1 replica):


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ia5e787619cc9f2b1cd30d40440aecd20fcef4117
Gerrit-Change-Number: 24586
Gerrit-PatchSet: 2
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Comment-Date: Wed, 15 Jul 2026 21:31:52 +0000
Gerrit-HasComments: No

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