f3eade2f62
Drop the AGPL license in favor of a source-available license. See the blog post [1] for details. [1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
38 lines
1.4 KiB
Python
38 lines
1.4 KiB
Python
# Copyright 2020-present ScyllaDB
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#
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# SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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from .util import new_test_table
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from cassandra.query import SimpleStatement
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import pytest
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from . import nodetool
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# Test that the _stop flag set in the compactor at the end of a page is not
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# sticky and doesn't remain set on the following page. If it does it can cause
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# the next page (and consequently the entire query) to be terminated prematurely.
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# This can happen if the code path on the very first consumed fragment doesn't
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# reset this flag. Currently this is the case for rows completely covered by a
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# higher level tombstone.
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def test_sticky_stop_flag(cql, test_keyspace):
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with new_test_table(cql, test_keyspace, 'pk int, ck int, v int, PRIMARY KEY (pk, ck)') as table:
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insert_row_id = cql.prepare(f"INSERT INTO {table} (pk, ck, v) VALUES (?, ?, ?)")
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pk = 0
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# Flush the row to disk, to prevent it being compacted away in the
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# memtable upon writing the partition tombstone.
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cql.execute(insert_row_id, (pk, 100, 0))
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nodetool.flush(cql, table)
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cql.execute(f"DELETE FROM {table} WHERE pk = {pk}")
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for ck in range(0, 200):
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if ck == 100:
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continue
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cql.execute(insert_row_id, (pk, ck, 0))
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statement = SimpleStatement(f"SELECT * FROM {table} WHERE pk = {pk}", fetch_size=100)
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res = list(cql.execute(statement))
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assert len(res) == 199
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