Support DML generation for blob data

michaelmdeng commented 3 months ago

What problem does this PR solve?

Issue Number: close #710

Helps address #350.

Supports supports generating DMLs to resolve diffs in blob data. Essentially a copy of #709, with differences:

Resolves merge conflicts
Does not incorporate #709 fixes to use hex to compare data. String compare will already compare data byte-by-byte.
Adds relevant tests

What is changed and how it works?

Generate correct DML to update different tables w/ blob data by converting data into hex for insert/replace/delete.

Check List

Tests

[x] Unit test
Integration test
Manual test (add detailed scripts or steps below)
No code

Code changes

Has exported function/method change
Has exported variable/fields change
Has interface methods change
Has persistent data change

Side effects

Possible performance regression
Increased code complexity
Breaking backward compatibility

Related changes

Need to cherry-pick to the release branch
Need to update the documentation
Need to be included in the release note

Release note

None

CLAassistant commented 3 months ago

All committers have signed the CLA.

Leavrth commented 3 months ago

please make format

lyzx2001 commented 3 months ago

please fix the fmt error in unit tests

ti-chi-bot[bot] commented 3 months ago

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Leavrth, lyzx2001

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/pingcap/tidb-tools/blob/master/OWNERS)~~ [Leavrth] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

ti-chi-bot[bot] commented 3 months ago

[LGTM Timeline notifier]

Timeline:

2024-05-07 08:43:09.158536198 +0000 UTC m=+951542.915671770: :ballot_box_with_check: agreed by Leavrth.
2024-05-07 15:40:40.123640929 +0000 UTC m=+976593.880776504: :heavy_multiplication_x::repeat: reset by michaelmdeng.
2024-05-08 05:51:26.029920776 +0000 UTC m=+1027639.787056350: :ballot_box_with_check: agreed by lyzx2001.

pingcap / tidb-tools