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mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-04-20 09:07:44 +03:00

3 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
Alexander Barkov
aaef69040a MCOL-4736 Fix cross-engine tests to run without --extern 2021-05-28 08:41:19 +04:00
Alexander Barkov
75e3bbc31e MCOL-4674 Fix ColumnStore to run MTR tests in a build directory 2021-04-13 11:25:25 +04:00