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expression: fix wrong flen infer for bit constant #23867

Merged
merged 4 commits into from
Apr 25, 2021
Merged

expression: fix wrong flen infer for bit constant #23867

merged 4 commits into from
Apr 25, 2021

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lzmhhh123
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Signed-off-by: lzmhhh123 [email protected]

What problem does this PR solve?

Issue Number: close #23479

What is changed and how it works?

How it Works:

Related changes

  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test
  • Integration test

Release note

  • fix wrong flen infer for bit constant

@lzmhhh123 lzmhhh123 requested a review from a team as a code owner April 6, 2021 09:36
@lzmhhh123 lzmhhh123 requested review from qw4990 and removed request for a team April 6, 2021 09:36
@ti-chi-bot ti-chi-bot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Apr 6, 2021
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/cc @XuHuaiyu @ichn-hu

@ichn-hu ichn-hu mentioned this pull request Apr 6, 2021
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XuHuaiyu
XuHuaiyu reviewed Apr 7, 2021
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types/field_type.go
@@ -250,7 +250,7 @@ func DefaultTypeForValue(value interface{}, tp *FieldType, char string, collate
SetBinChsClnFlag(tp)
case BitLiteral:
tp.Tp = mysql.TypeVarString
tp.Flen = len(x)
tp.Flen = len(x) * 3
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Why make this change?

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Because the max bit value for a byte is 127 which flen is 3

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Apr 15, 2021
@wshwsh12 wshwsh12 requested a review from XuHuaiyu April 16, 2021 06:32
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • ichn-hu
  • wshwsh12

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
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@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 Apr 23, 2021
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/merge

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Apr 23, 2021
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/run-all-tests

This bot automatically retries jobs that failed on can merge PRs (send feedback to hi-rustin).

Silence the bot with the /merge cancel comment for consistent failures.

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/merge cancel

for consistent failures.

@lzmhhh123 Could you please take a look?

@ti-chi-bot ti-chi-bot removed the status/can-merge Indicates a PR has been approved by a committer. label Apr 23, 2021
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/run-all-tests

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/run-all-tests

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/merge

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

Commit hash: a54dd3b

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Apr 25, 2021
@ti-chi-bot ti-chi-bot merged commit 2c67a80 into pingcap:master Apr 25, 2021
ti-srebot pushed a commit to ti-srebot/tidb that referenced this pull request Apr 25, 2021
@lzmhhh123 @ti-srebot
cherry pick pingcap#23867 to release-4.0
aca610b 
Signed-off-by: ti-srebot <[email protected]>
@ti-srebot ti-srebot mentioned this pull request Apr 25, 2021
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cherry pick to release-4.0 in PR #24266

ti-srebot pushed a commit to ti-srebot/tidb that referenced this pull request Apr 25, 2021
@lzmhhh123 @ti-srebot
cherry pick pingcap#23867 to release-5.0
2d6dac5 
Signed-off-by: ti-srebot <[email protected]>
@ti-srebot ti-srebot mentioned this pull request Apr 25, 2021
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cherry pick to release-5.0 in PR #24267

@lzmhhh123 lzmhhh123 deleted the bug-fix/fix_bit_div_int branch April 25, 2021 08:26
ti-chi-bot pushed a commit that referenced this pull request May 11, 2021
@ti-srebot
expression: fix wrong flen infer for bit constant (#23867) (#24266)
1d039ef
ti-chi-bot pushed a commit that referenced this pull request Aug 12, 2021
@ti-srebot
expression: fix wrong flen infer for bit constant (#23867) (#24267)
899c2f0
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@ichn-hu ichn-hu ichn-hu approved these changes

@wshwsh12 wshwsh12 wshwsh12 approved these changes

@qw4990 qw4990 Awaiting requested review from qw4990

@XuHuaiyu XuHuaiyu Awaiting requested review from XuHuaiyu

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Successfully merging this pull request may close these issues.

the behavior of bit type for / is incompatible with MySQL
7 participants
@lzmhhh123 @ti-chi-bot @Rustin170506 @ti-srebot @XuHuaiyu @wshwsh12 @ichn-hu