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storage/pg: only report snapshot size error in strict mode #32441

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Our default snapshot size determination strategy is to use the table statistics in pg instead of performing a SELECT COUNT(*) on the table.

This saves resources from the upstream database since it only reads a couple of rows from the statistics table at the expense of accuracy.

This PR silences an error that only makes sense when the COUNT(*) strategy is used.

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  • This PR has adequate test coverage / QA involvement has been duly considered. (trigger-ci for additional test/nightly runs)
  • This PR has an associated up-to-date design doc, is a design doc (template), or is sufficiently small to not require a design.
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@def-
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def- commented May 8, 2025

Our default snapshot size determination strategy is to use the table
statistics in pg instead of performing a `SELECT COUNT(*)` on the table.

This saves resources from the upstream database since it only reads a
couple of rows from the statistics table at the expense of accuracy.

This PR silences an error that only makes sense when the `COUNT(*)`
strategy is used.

Signed-off-by: Petros Angelatos <[email protected]>
@petrosagg petrosagg force-pushed the snapshot-size-error branch from 1eea7fc to c07cc68 Compare May 9, 2025 09:25
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