parser: use alter table remove ttl spec

[YangKeao]

Signed-off-by: YangKeao [email protected]

What problem does this PR solve?

Issue Number: close #39340

Problem Summary:

Use alter table remove ttl instead of alter table no_ttl. And remove the support of arbitrary expression, but only support valueExpr from Literal.

What is changed and how it works?

It changed three things:

1. Change the name of AlterTablePartitionOpt to AlterTableSingleSpecOpt and add a "REMOVE" "TTL" branch to it. We cannot add "REMOVE" "TTL" to other rules or AlterTableSpec because yacc has to know whether to reduce the AlterTableSpec and moving forward to AlterTablePartitionOpt, or try to "REMOVE" "TTL"
2. Change the value of "TTL" config to valueExpr. Maybe we could modify it to DefaultValueExpr or other wider range grammar later, but supporing number / string literal is enough for today.

Check List

Tests

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

Release note

Change grammar to remove ttl from `ALTER table NO_TTL` to `ALTER table REMOVE TTL`

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• hawkingrei
• lcwangchao

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[YangKeao]

@lcwangchao @hawkingrei Could you help me to merge this PR?

[lcwangchao]

/merge

[ti-chi-bot]

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

Commit hash: 9cc5dc0

[sre-bot]

TiDB MergeCI notify

✅ Well Done! New fixed [1] after this pr merged.

CI Name	Result	Duration	Compare with Parent commit
idc-jenkins-ci-tidb/sqllogic-test-2	🔴 failed 4, success 24, total 28	21 min	Existing failure
idc-jenkins-ci-tidb/mybatis-test	🔴 failed 1, success 0, total 1	11 min	Existing failure
idc-jenkins-ci-tidb/integration-ddl-test	🔴 failed 2, success 4, total 6	4 min 22 sec	Existing failure
idc-jenkins-ci/integration-cdc-test	✅ all 39 tests passed	23 min	Fixed
idc-jenkins-ci-tidb/common-test	🟢 all 11 tests passed	14 min	Existing passed
idc-jenkins-ci-tidb/integration-common-test	🟢 all 17 tests passed	13 min	Existing passed
idc-jenkins-ci-tidb/tics-test	🟢 all 1 tests passed	5 min 53 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1	🟢 all 26 tests passed	5 min 5 sec	Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test	🟢 all 1 tests passed	2 min 43 sec	Existing passed
idc-jenkins-ci-tidb/plugin-test	🟢 build success, plugin test success	4min	Existing passed