Use SharedLockTable in DataTable::Fetch #17983
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Use SharedLockTable in DataTable::Fetch (duckdb/duckdb#17983)
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Use SharedLockTable in DataTable::Fetch (duckdb/duckdb#17983) Co-authored-by: krlmlr <krlmlr@users.noreply.github.com>
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We need all table locks to go through
SharedLockTableotherwise a transaction can try to obtain the same lock for the same table multiple times. Not using this can cause deadlocks in rare scenarios where we have connections running queries that refer to the same table multiple times while other transactions are trying to checkpoint.