database/mariadb-columnstore-engine
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5 Commits

Author SHA1 Message Date
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
Leonid Fedorov
04752ec546 clang format apply 2022-01-21 16:43:49 +00:00
benthompson15
870d672efb MCOL-4044: Add oracle mode functions. 2021-04-21 16:07:42 -05:00
benthompson15
4900559545 MCOL-4323: use vlarray.h 2020-12-02 14:13:05 -06:00
benthompson15
3e9b7b3401 Initial commit for Encode/Decode. 2020-12-01 12:39:56 -06:00