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Fix deletion of old sent devices correctly
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1 changed files with 17 additions and 5 deletions
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@ -436,15 +436,27 @@ class DeviceStore(SQLBaseStore):
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)
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def _mark_as_sent_devices_by_remote_txn(self, txn, destination, stream_id):
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# First we DELETE all rows such that only the latest row for each
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# (destination, user_id is left. We do this by selecting first and
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# deleting.
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sql = """
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SELECT user_id, coalesce(max(stream_id), 0) FROM device_lists_outbound_pokes
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WHERE destination = ? AND stream_id <= ?
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GROUP BY user_id
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HAVING count(*) > 1
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"""
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txn.execute(sql, (destination, stream_id,))
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rows = txn.fetchall()
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sql = """
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DELETE FROM device_lists_outbound_pokes
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WHERE destination = ? AND stream_id < (
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SELECT coalesce(max(stream_id), 0) FROM device_lists_outbound_pokes
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WHERE destination = ? AND stream_id <= ?
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)
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WHERE destination = ? AND user_id = ? AND stream_id < ?
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"""
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txn.execute(sql, (destination, destination, stream_id,))
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txn.executemany(
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sql, ((destination, row[0], row[1],) for row in rows)
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)
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# Mark everything that is left as sent
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sql = """
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UPDATE device_lists_outbound_pokes SET sent = ?
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WHERE destination = ? AND stream_id <= ?
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