Add concurrency safety validation checks#3049
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geruh
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Feb 17, 2026
tusharchou
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Feb 17, 2026
| parent_snapshot: Ending snapshot on the branch being validated | ||
| """ | ||
| # If there is no current state, or no files has been added | ||
| if parent_snapshot is None or table.format_version < 2: |
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I've verified this logic locally by mocking a concurrent conflict. The table.format_version < 2 guard correctly prevents unnecessary overhead for V1 tables, and the use of the DeleteFileIndex ensures we are only blocking commits when there is a real overlap in data files (avoiding 'lazy' global locks).
Fokko
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Fokko
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Feb 19, 2026
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Closes #1930
Closes #1931
Rationale for this change
Now that we have an implementation of DeleteFileIndex we can move ahead and implement the last two safety concurrency validations mentioned in this #819
Are these changes tested?
Yes
Are there any user-facing changes?
No