TSO: fix pre-v7.4

[dveeden]

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What is changed, added or deleted? (Required)

As indicated on https://docs.pingcap.com/tidb/stable/release-7.4.0#behavior-changes the TIDB_PARSE_TSO_LOGICAL() was added in v7.4.0. This means documents for earlier versions shouldn't reference it.

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• master (the latest development version)
• v7.6 (TiDB 7.6 versions)
• v7.5 (TiDB 7.5 versions)
• [] v7.4 (TiDB 7.4 versions)
• v7.3 (TiDB 7.3 versions)
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• v6.5 (TiDB 6.5 versions)
• v6.1 (TiDB 6.1 versions)
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• v5.3 (TiDB 5.3 versions)
• v5.2 (TiDB 5.2 versions)
• v5.1 (TiDB 5.1 versions)
• v5.0 (TiDB 5.0 versions)

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• Other reference link(s):

• Add a new doc about TSO #14630

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• Delete files
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• Might cause conflicts after applied to another branch

[qiancai]

Rest LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-06 06:48:17.557240521 +0000 UTC m=+1596526.222466717: ☑️ agreed by qiancai.
• 2023-12-06 07:02:53.873384891 +0000 UTC m=+1597402.538611081: ☑️ agreed by hfxsd.

[mjonss]

We can replace the TIDB_PARSE_TSO_LOGICAL with <tso> & 0x3FFFF which should give the same result.

Are there any documentation of the format of the TSO timestamp we can link to as well, like https://docs.pingcap.com/tidbcloud/tso ?

The suggested change is OK, but I think keeping the information about the logical part would be nice.

[ti-chi-bot]

@mjonss: adding LGTM is restricted to approvers and reviewers in OWNERS files.

In response to this:

We can replace the TIDB_PARSE_TSO_LOGICAL with <tso> & 0x3FFFF which should give the same result.

Are there any documentation of the format of the TSO timestamp we can link to as well, like https://docs.pingcap.com/tidbcloud/tso ?

The suggested change is OK, but I think keeping the information about the logical part would be nice.

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[qiancai]

/approve

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #15620.