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mariadb-columnstore-engine/datatypes
Alexander Barkov a433c65575 A cleanup for MCOL-4064 Make JOIN collation aware
After creating and populating tables with CHAR(5) case insensitive columns,
in a set of consequent joins like:

select * from t1, t2 where t1.c1=t2.c1;
select * from t1, t2 where t1.c1=t2.c2;
select * from t1, t2 where t1.c2=t2.c1;
select * from t1, t2 where t1.c2=t2.c2;

only the first join worked reliably case insensitively.

Removing the remaining pieces of the code that used order_swap() to compare
short CHAR columns, and using Charset::strnncollsp() instead.
This fixes the issue.
2020-12-10 19:19:36 +04:00
..
2020-12-05 12:19:50 +00:00
2020-12-05 12:19:50 +00:00