Oleg Smirnov fd87e01f38 MDEV-27277 Add a warning when max_sort_length is reached ...

During a query execution some sorting and grouping operations
on strings may be involved. System variable max_sort_length defines
the maximum number of bytes to use when comparing strings during
sorting/grouping. Thus, the comparable parts of strings may be less
than their actual size, so the results of the query may be not
sorted/grouped properly.
To indicate that some comparisons were done on a truncated lengths,
a new warning has been introduced with this commit.

2024-10-22 22:39:36 +07:00

7.1 KiB

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