Alexander Barkov 2e5d86f49e MDEV-23537 Comparison with temporal columns is slow in MariaDB ...

Implementing methods:
- Field::val_time_packed()
- Field::val_datetime_packed()
- Item_field::val_datetime_packed(THD *thd);
- Item_field::val_time_packed(THD *thd);
to give a faster access to temporal packed longlong representation of a Field,
which is used in temporal Arg_comparator's to DATE, TIME, DATETIME data types.

The same idea is used in MySQL-5.6+.

This improves performance.

2020-08-22 15:22:20 +04:00

187 KiB

Raw Blame History

View Raw