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fix/wal: reset page cache when another connection checkpointed in between

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This commit is contained in:
Jussi Saurio
2025-07-31 12:43:49 +03:00
parent bac3add778
commit 39dec647a7
1 changed files with 5 additions and 1 deletions
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6
core/storage/wal.rs
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@@ -776,7 +776,11 @@ impl Wal for WalFile {
let checkpoint_seq = shared.wal_header.lock().checkpoint_seq;
(mx, nb, ck, checkpoint_seq)
};
let db_changed = shared_max > self.max_frame;
// This needs to be an != comparison because either of the following can be true:
// - Another connection added more WAL frames -> shared max is bigger
// - Another connection checkpointed -> shared max is smaller
// TODO: are there cases where shared_max == self.max_frame but the DB has still changed in between??
let db_changed = shared_max != self.max_frame;
// WAL is already fully back‑filled into the main DB image
// (mxFrame == nBackfill). Readers can therefore ignore the