add toStartOfQuarter,toStartOfMonth

[dust1]

I hereby agree to the terms of the CLA available at: https://databend.rs/policies/cla/

Summary

Summary about this PR

Changelog

• Improvement

Related Issues

Fixes #853

Test Plan

Unit Tests

Stateless Tests

[databend-bot]

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[codecov-commenter]

Codecov Report

Merging #1848 (f50a257) into master (a569ba3) will decrease coverage by 0%.
The diff coverage is 53%.

@@          Coverage Diff           @@
##           master   #1848   +/-   ##
======================================
- Coverage      70%     70%   -1%     
======================================
  Files         635     635           
  Lines       37824   37878   +54     
======================================
+ Hits        26514   26551   +37     
- Misses      11310   11327   +17     

Impacted Files	Coverage Δ
...mon/functions/src/scalars/dates/number_function.rs	51% <33%> (+2%)	⬆️
common/functions/src/scalars/dates/date_test.rs	91% <91%> (+<1%)	⬆️
common/functions/src/scalars/dates/date.rs	60% <100%> (+2%)	⬆️
store/src/api/http_service.rs	14% <0%> (-62%)	⬇️
common/datavalues/src/columns/arithmetic.rs	63% <0%> (-13%)	⬇️
store/src/api/http_service_test.rs	64% <0%> (-4%)	⬇️
common/datavalues/src/types/data_type_coercion.rs	56% <0%> (-2%)	⬇️
common/datavalues/src/series/series_impl.rs	84% <0%> (-2%)	⬇️
query/src/sql/plan_parser.rs	74% <0%> (-1%)	⬇️
common/clickhouse-srv/src/types/mod.rs	0% <0%> (ø)
... and 7 more

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[sundy-li]

LGTM, thanks.

[databend-bot]

CI Passed
Reviewer Approved
Let's Merge

[sundy-li]

@dust1

BTW, we should not use Fixes #xxx in the issue if it did not fixes all ..

[dust1]

BTW, we should not use Fixes #xxx in the issue if it did not fixes all ..

ok.