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ddl: fix CREATE GLOBAL TEMPORARY TABLE ... LIKE creates a normal table #25644

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merged 10 commits into from
Jun 24, 2021

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Howie59
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@Howie59 Howie59 commented Jun 22, 2021

What problem does this PR solve?

Issue Number: close #25613

What is changed and how it works?

Proposal: temporary table

Check List

Tests

  • Unit test

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Signed-off-by: lihaowei <haoweili35@gmail.com>
@ti-chi-bot ti-chi-bot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Jun 22, 2021
@github-actions github-actions bot added the sig/sql-infra SIG: SQL Infra label Jun 22, 2021
ddl/ddl_api.go Outdated Show resolved Hide resolved
Signed-off-by: lihaowei <haoweili35@gmail.com>
@ti-chi-bot ti-chi-bot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Jun 22, 2021
ddl/ddl_api.go Outdated Show resolved Hide resolved
Signed-off-by: lihaowei <haoweili35@gmail.com>
Signed-off-by: lihaowei <haoweili35@gmail.com>
ddl/ddl_api.go Outdated
if err = setTemporaryType(ctx, tbInfo, s); err != nil {
return nil, errors.Trace(err)
}
if s.TemporaryKeyword == ast.TemporaryLocal {
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I don't understand. Why leave this judgement out of setTemporaryType?

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put it into the method would AppendWarning twice

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CreateTable calls buildTableInfoWithLike and buildTableInfoWithStmt. So there are 2 ways:

  1. Call setTemporaryType only in CreateTable, which is impossible. Because setTemporaryType must be called in the middle of buildTableInfoWithStmt, unless you remove the dependence of tbInfo.TempTableType in buildTableInfoWithStmt.
  2. Call setTemporaryType both in buildTableInfoWithLike and buildTableInfoWithStmt.

@tiancaiamao
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I meet this bug too...

@djshow832
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djshow832 commented Jun 23, 2021

I meet this bug too...

Did you meet the case create global temporary table like a global temporary table? @tiancaiamao

ddl/serial_test.go Outdated Show resolved Hide resolved
@tiancaiamao
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I meet this bug too...

Did you meet the case create global temporary table like a global temporary table? @tiancaiamao

No, I mean create a global temporary table from a normal table...

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Jun 24, 2021
@tiancaiamao
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This PR does exactly what its title says: fix CREATE GLOBAL TEMPORARY TABLE ... LIKE creates a normal table

Maybe we can pay more attention to the combinations, it's a complex matrix:

from \ to normal table global temporary table local temporary table
normal table yes (done) yes (this PR) ?
global temporary table no yes (?) ?
local temporary table ? ? ?

@Howie59
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Howie59 commented Jun 24, 2021

PTAL @djshow832

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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • djshow832
  • tiancaiamao

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@ti-chi-bot ti-chi-bot removed the status/LGT1 Indicates that a PR has LGTM 1. label Jun 24, 2021
@ti-chi-bot ti-chi-bot added the status/LGT2 Indicates that a PR has LGTM 2. label Jun 24, 2021
@djshow832
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/merge

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

Commit hash: 641bce1

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Jun 24, 2021
@zhouqiang-cl
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/run-unit-tests

@tiancaiamao
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ref #25724

@ti-chi-bot ti-chi-bot merged commit 39c547f into pingcap:master Jun 24, 2021
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CREATE GLOBAL TEMPORARY TABLE ... LIKE creates a normal table
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