mariadb-columnstore-engine

mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-04-21 19:45:56 +03:00

History

Serguey Zefirov 6e995e2e80 fix: MCOL-5755: incorrect handling of BLOB (and TEXT) in GROUP BY

BLOB fields did not work as grouping keys at all, they were assigned
value NULL for any value, be it NULL or not. The fix is in the
rowaggregation.cpp in the initMapping(), a switch/case branch was added
to handle BLOB field copying there.

Also, TEXT columns did not distinguish between NULL and empty string in
the grouping algorithm, now they do. The fix is in the equals()
function, now we specifically check for isNull() equality between
values.

2024-07-11 11:03:05 +03:00

CMakeLists.txt

[MCOL-4709] Disk-based aggregation

2021-06-06 16:09:15 +03:00

rowaggregation.cpp

fix: MCOL-5755: incorrect handling of BLOB (and TEXT) in GROUP BY

2024-07-11 11:03:05 +03:00

rowaggregation.h

MCOL-4234: improve GROUP BY and ORDER BY interaction (#3194 )

2024-06-17 20:00:54 +03:00

rowgroup.cpp

fix: MCOL-5755: incorrect handling of BLOB (and TEXT) in GROUP BY