expression: Add missing pbcode for functions InetAton/InetNtoa/Inet6Aton/Inet6Ntoa/IsIPv4/IsIPv4Compat/IsIPv4Mapped/IsIPv6.

[LittleFall]

What problem does this PR solve?

Issue Number: close #26942

Problem Summary: some scalar function hasn't pdcode for some reason, so it can't be pushed down as expected.

What is changed and how it works?

Proposal: xxx

What's Changed:

1. add warnings for functions without pbcode.
2. add pbcode for some functions.
3. ban push down to tikv for these functions.
4. add tests for them.

How it Works:

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

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• hanfei1991
• lzmhhh123

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[LittleFall]

/cc @fuzhe1989

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[ichn-hu]

?

[LittleFall]

later will use

[LittleFall]

/rebuild

[LittleFall]

/merge

[ti-chi-bot]

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

Commit hash: 94473eb

[LittleFall]

[2021-08-06T07:22:54.680Z] Using context: idc-jenkins-ci-tidb/check_dev

[2021-08-06T07:22:55.350Z] java.lang.InterruptedException

[2021-08-06T07:22:55.350Z] at java.lang.Object.wait(Native Method)

[2021-08-06T07:22:55.350Z] at java.lang.Object.wait(Object.java:502)

[2021-08-06T07:22:55.350Z] at java.lang.UNIXProcess.waitFor(UNIXProcess.java:395)

[2021-08-06T07:22:55.350Z] at hudson.Proc$LocalProc.join(Proc.java:327)

[2021-08-06T07:22:55.350Z] at hudson.Proc.joinWithTimeout(Proc.java:172)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2632)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:2079)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$500(CliGitAPIImpl.java:84)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:601)

[2021-08-06T07:22:55.350Z] at jenkins.plugins.git.GitSCMFileSystem$BuilderImpl.build(GitSCMFileSystem.java:365)

[2021-08-06T07:22:55.350Z] at jenkins.scm.api.SCMFileSystem.of(SCMFileSystem.java:197)

[2021-08-06T07:22:55.350Z] at jenkins.scm.api.SCMFileSystem.of(SCMFileSystem.java:173)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.workflow.cps.CpsScmFlowDefinition.create(CpsScmFlowDefinition.java:114)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.workflow.cps.CpsScmFlowDefinition.create(CpsScmFlowDefinition.java:68)

[2021-08-06T07:22:55.350Z] at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:309)

[2021-08-06T07:22:55.350Z] at hudson.model.ResourceController.execute(ResourceController.java:97)

[2021-08-06T07:22:55.350Z] at hudson.model.Executor.run(Executor.java:429)

[2021-08-06T07:22:55.350Z] Finished: FAILURE

[zhouqiang-cl]

CI fails for many times

 FAIL: enforce_mpp_test.go:128: testEnforceMPPSuite.TestEnforceMPPWarning1

[2021-08-06T07:47:41.884Z] 

[2021-08-06T07:47:41.884Z] enforce_mpp_test.go:191:

[2021-08-06T07:47:41.884Z]     c.Assert(s.testData.ConvertSQLWarnToStrings(tk.Se.GetSessionVars().StmtCtx.GetWarnings()), DeepEquals, output[i].Warn)

[2021-08-06T07:47:41.884Z] ... obtained []string = []string{"Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs"}

[2021-08-06T07:47:41.884Z] ... expected []string = []string{"Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs"}

in https://ci.pingcap.net/blue/organizations/jenkins/tidb_ghpr_check_2/detail/tidb_ghpr_check_2/23511/pipeline

[LittleFall]

/merge

[LittleFall]

CI fails for many times

 FAIL: enforce_mpp_test.go:128: testEnforceMPPSuite.TestEnforceMPPWarning1

[2021-08-06T07:47:41.884Z] 

[2021-08-06T07:47:41.884Z] enforce_mpp_test.go:191:

[2021-08-06T07:47:41.884Z]     c.Assert(s.testData.ConvertSQLWarnToStrings(tk.Se.GetSessionVars().StmtCtx.GetWarnings()), DeepEquals, output[i].Warn)

[2021-08-06T07:47:41.884Z] ... obtained []string = []string{"Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: IsIPv4) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs"}

[2021-08-06T07:47:41.884Z] ... expected []string = []string{"Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs", "Scalar function 'is_ipv4'(signature: Unspecified) can not be pushed to tiflash", "Aggregation can not be pushed to tiflash because groupByItems contain unsupported exprs"}

in https://ci.pingcap.net/blue/organizations/jenkins/tidb_ghpr_check_2/detail/tidb_ghpr_check_2/23511/pipeline

my code failed, fixed

[LittleFall]

[2021-08-06T08:02:11.933Z] + rm -rf /tmp/tidb

[2021-08-06T08:02:11.933Z] + mkdir -p plugin-so

[2021-08-06T08:02:11.933Z] + cp /home/jenkins/agent/workspace/tidb_ghpr_build/go/src/github.com/pingcap/enterprise-plugin/audit/audit-1.so ./plugin-so/

[2021-08-06T08:02:11.933Z] + cp /home/jenkins/agent/workspace/tidb_ghpr_build/go/src/github.com/pingcap/enterprise-plugin/whitelist/whitelist-1.so ./plugin-so/

[2021-08-06T08:02:12.192Z] + sleep 5

[2021-08-06T08:02:12.192Z] + /home/jenkins/agent/workspace/tidb_ghpr_build/go/src/github.com/pingcap/tidb/bin/tidb-server -plugin-dir=/home/jenkins/agent/workspace/tidb_ghpr_build/go/src/github.com/pingcap/tidb/plugin-so -plugin-load=audit-1,whitelist-1

[2021-08-06T08:02:17.453Z] + mysql -h 127.0.0.1 -P 4000 -u root -e 'select tidb_version()'

[2021-08-06T08:02:17.453Z] ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)

[LittleFall]

/merge

[ti-srebot]

cherry pick to release-5.0 in PR #26960

[ti-srebot]

cherry pick to release-5.1 in PR #26961