database/mariadb-columnstore-engine
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5 Commits

Author SHA1 Message Date
Aleksei Antipovskii
c618fa284d fix(PrimProc): MCOL-5394 JSON_ARRAYAGG in MCS works differently than in InnoDB 2025-04-11 15:21:07 +02:00
Sergey Zefirov
b53c231ca6 MCOL-271 empty strings should not be NULLs (#2794) 
This patch improves handling of NULLs in textual fields in ColumnStore.
Previously empty strings were considered NULLs and it could be a problem
if data scheme allows for empty strings. It was also one of major
reasons of behavior difference between ColumnStore and other engines in
MariaDB family.

Also, this patch fixes some other bugs and incorrect behavior, for
example, incorrect comparison for "column <= ''" which evaluates to
constant True for all purposes before this patch.
 2023-03-30 21:18:29 +03:00
mariadb-AndreyPiskunov
8b4be1b7f9 func json_arrayagg test adjustments 2022-11-02 16:07:45 +02:00
mariadb-AndreyPiskunov
d7f4ec73c5 Small fixes + test sorting 2022-10-31 14:56:32 +02:00
mariadb-AndreyPiskunov
315e4be2d8 First working attempt for json_arrayagg 2022-10-31 14:56:32 +02:00