feat(query): support timezone

[Veeupup]

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Summary

this is part of #4651 , make databend work with timezone.

And now, we only store UTC timestamp in microseconds in databend, and then we will display with timezone.
and all functions with timestamp will be the corresponding logic with timezone.
such as in UTC, timestamp is 2022-04-30 22:00:00 and then in Asia/Shanghai, it should be 2022-05-01 06:00:00. and when we call tostartofmonth, the first will output 2022-04-01 and the latter will be 2022-05-01. Others will be the same logic.

• serialization with timezone
• deserialization with timezone
• display with timezone
  • mysql
• datetime function
  • number function
  • round function
  • week function
  • cast function
  • interval function
• stateless test with timezone

Changelog

• New Feature

Related Issues

Fixes #4651

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[Veeupup]

@sundy-li @b41sh there are many details to deal with, so comments are welcome if u can help me to check it

[b41sh]

How about putting func_ctx as the first argument?

[BohuTANG]

We can do this little refactor in another PR

[Veeupup]

with lots of codes and logic modified, I suggest maybe u can first check the stateless-test datetime_tz to check the logic of different timezone
tests/suites/0_stateless/02_function/02_0012_function_datetimes_tz.sql
@sundy-li @b41sh

[Veeupup]

We need more stateless-test to test corner cases of differents timezone in the future

[BohuTANG]

💯

[leiysky]

I'd like to know if we support DST(Daylight Saving Time) or not?

As soon as timezone is introduced, the implementation of datetime functions(e.g. date add) should take care of DST.

[Veeupup]

@leiysky I did not add stateless-test about DST now. We use chrono and chnoro_tz crate to deal with datetime convert between different timezones. And it seems that chrono_tz has done with it : D