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4 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
mariadb-KirillPerov
85a6121f76 Mtrfix kp 220926 (#2580) 
* Update mcol_2000.test

* Update mcs117_create_utf8.test

* Update mcs12_alter_table.test

* Update mcs13_alter_table_negative.test

* Update mcs169_bin_functions.test

* Update mcs171_null_functions.test

* Update mcs173_coalesce_function.test

* Update mcs174_case_function.test

* Update mcs175_convert_functions.test

* Update mcs176_if_function.test

* Update mcs178_adddate_function.test

* Update mcs179_addtime_function.test

* Update mcs180_ascii_function.test

* Update mcs181_between_and.test

* Update mcs182_char_length_function.test

* Update mcs183_date_function.test

* Update mcs184_day_function.test

* Update mcs185_dayname_function.test

* Update mcs186_dayofyear_function.test

* Update mcs187_dayofmonth_function.test

* Update mcs1_create_table_data_types.test

* Update mcs19_grant_revoke.test

* Update mcs229_data_compression_type.test

* Update mcs28_load_data_local_infile.test

* Update mcs2_create_table_valid_names.test

* Update mcs5_create_table_from_other_tables.test

* Update mcs74_check_constraint.test

* Update mcs7_create_table_with_metadata.test

* Update mcs87_alter_column.test

* Update mcs8_create_table_with_constraints.test

* Update disabled.def

* Update mcs19_grant_revoke.test

* Update mcs19_grant_revoke.test

* Update mcs19_grant_revoke.test
 2022-10-07 11:36:29 +03:00
mariadb-KirillPerov
a7cf88f2a5 Update mcs171_null_functions.test 2022-07-31 01:12:09 +03:00
Alexander Barkov
75e3bbc31e MCOL-4674 Fix ColumnStore to run MTR tests in a build directory 2021-04-13 11:25:25 +04:00