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types: fix fsp for datetime, time and timestamp #27170

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merged 6 commits into from
Aug 16, 2021
Merged

types: fix fsp for datetime, time and timestamp #27170

merged 6 commits into from
Aug 16, 2021

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wjhuang2016
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@wjhuang2016 wjhuang2016 commented Aug 12, 2021 •
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Signed-off-by: wjhuang2016 huangwenjun1997@gmail.com

What problem does this PR solve?

Issue Number: close #27159

Problem Summary:
If the decimal is unspecified, we should use the maxFsp, which is compatible with what we do for function.

What is changed and how it works?

If the decimal is unspecified, we should use the maxFsp, which is compatible with what we do for function.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No code

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note 

 'None'

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ti-chi-bot commented Aug 12, 2021 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • AilinKid
  • tangenta

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@ti-chi-bot ti-chi-bot added release-note-none Denotes a PR that doesn't merit a release note. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Aug 12, 2021
@ichn-hu ichn-hu mentioned this pull request Aug 12, 2021
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morgo commented Aug 13, 2021

It looks like this test is related:


[2021-08-12T14:19:49.458Z] FAIL: convert_test.go:590: testTypeConvertSuite.TestConvert

[2021-08-12T14:19:49.458Z] 

[2021-08-12T14:19:49.458Z] convert_test.go:744:

[2021-08-12T14:19:49.458Z]     signedAccept(c, mysql.TypeDatetime, NewDecFromFloatForTest(20010101100000.123456), "2001-01-01 10:00:00")

[2021-08-12T14:19:49.458Z] convert_test.go:548:

[2021-08-12T14:19:49.458Z]     c.Assert(str, Equals, expected)

[2021-08-12T14:19:49.458Z] ... obtained string = "2001-01-01 10:00:00.125000"

[2021-08-12T14:19:49.458Z] ... expected string = "2001-01-01 10:00:00"

@wjhuang2016
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It looks like this test is related:


[2021-08-12T14:19:49.458Z] FAIL: convert_test.go:590: testTypeConvertSuite.TestConvert

[2021-08-12T14:19:49.458Z] 

[2021-08-12T14:19:49.458Z] convert_test.go:744:

[2021-08-12T14:19:49.458Z]     signedAccept(c, mysql.TypeDatetime, NewDecFromFloatForTest(20010101100000.123456), "2001-01-01 10:00:00")

[2021-08-12T14:19:49.458Z] convert_test.go:548:

[2021-08-12T14:19:49.458Z]     c.Assert(str, Equals, expected)

[2021-08-12T14:19:49.458Z] ... obtained string = "2001-01-01 10:00:00.125000"

[2021-08-12T14:19:49.458Z] ... expected string = "2001-01-01 10:00:00"

Yeah, I am thinking about whether set the decimal to 0 or just change the result.

@ti-chi-bot ti-chi-bot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Aug 13, 2021
@wjhuang2016 wjhuang2016 changed the title types: fix datetime fsp types: fix fsp for datetime, time and timestamp Aug 13, 2021
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/run-check_dev_2

AilinKid
AilinKid reviewed Aug 13, 2021
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types/datum.go Outdated
@@ -1122,7 +1122,7 @@ func (d *Datum) convertToMysqlTimestamp(sc *stmtctx.StatementContext, target *Fi
t Time
err error
)
fsp := DefaultFsp
fsp := MaxFsp
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@AilinKid AilinKid Aug 13, 2021 •
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this change will cause some automated-test/mysql-test fail, be cautious with that since no CI tests for now

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Rest LGTM

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Aug 13, 2021
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Why do you write integration tests in the explain_test? 😕

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Why do you write integration tests in the explain_test? 😕

Let's forget its name. We should take it as mysql_test

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/run-common-test

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/run-common-test

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I can't forget its name :)

@wjhuang2016
fix
70a4117 
Signed-off-by: wjhuang2016 <huangwenjun1997@gmail.com>
@ti-chi-bot ti-chi-bot added size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Aug 13, 2021
@wjhuang2016 wjhuang2016 reopened this Aug 13, 2021
@ti-chi-bot ti-chi-bot removed the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Aug 13, 2021
@ti-chi-bot ti-chi-bot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Aug 13, 2021
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/run-common-test

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I can't forget its name :)

It's suggested by @zz-jason that we should add the tests into mysql-test instead of integration_test, I think it's a good idea. You can refer to cte.t and select.t in this folder.

@github-actions github-actions bot added the sig/sql-infra SIG: SQL Infra label Aug 13, 2021
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/run-common-test

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/LGTM

@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Aug 16, 2021
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/merge

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This pull request has been accepted and is ready to merge.

Commit hash: bd42281

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Aug 16, 2021
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/run-all-tests

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/run-all-tests

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/run-build

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/run-check_dev_2

@ti-chi-bot ti-chi-bot merged commit 5ae87ca into pingcap:master Aug 16, 2021
ti-srebot pushed a commit to ti-srebot/tidb that referenced this pull request Aug 16, 2021
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cherry pick pingcap#27170 to release-5.2
52e32f9 
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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cherry pick to release-5.2 in PR #27243

ti-chi-bot pushed a commit that referenced this pull request Aug 17, 2021
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types: fix fsp for datetime, time and timestamp (#27170) (#27243)
89c0f82
@wjhuang2016 wjhuang2016 deleted the fix_datetime_fsp branch November 17, 2022 11:09
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@AilinKid AilinKid AilinKid approved these changes

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got wrong result while use expression index
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