sql: update temp table limitation doc to align with tidb #65598

[bb7133]

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• Other reference link(s): pkg/ddl: loose the pre-check for temporary table. tidb#65598

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[gemini-code-assist]

Summary of Changes

Hello @bb7133, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the documentation for TiDB's temporary table limitations. The primary goal is to ensure that the documentation accurately reflects the current compatibility of temporary tables with various TiDB features, specifically by removing outdated restrictions. This change improves the accuracy and relevance of the user-facing documentation.

Highlights

• Documentation Update: The documentation for temporary table limitations has been updated to remove SHARD_ROW_ID_BITS and PRE_SPLIT_REGIONS table options from the list of incompatible features. This change aligns the documentation with the current behavior of TiDB, as indicated by the referenced TiDB pull request #65598.

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[gemini-code-assist]

Code Review

This pull request correctly updates the documentation to reflect that temporary tables are now compatible with SHARD_ROW_ID_BITS and PRE_SPLIT_REGIONS table options. The change is correct and aligns the documentation with the product's behavior. I've suggested adding an example to demonstrate this new compatibility, which would further improve the documentation's completeness.

[gemini-code-assist]

Removing this line is correct. To further improve the documentation, consider adding an example of creating a temporary table with SHARD_ROW_ID_BITS and PRE_SPLIT_REGIONS in the 'Usage examples' sections. This would demonstrate the new compatibility to users. For example:

CREATE TEMPORARY TABLE users (
    id BIGINT,
    name VARCHAR(100),
    city VARCHAR(50),
    PRIMARY KEY(id)
) SHARD_ROW_ID_BITS = 4 PRE_SPLIT_REGIONS = 2;