ClickHouse/tests/queries/0_stateless/01951_distributed_push_down_limit.reference
2023-03-23 14:52:33 +08:00

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-- { echo }
explain select * from remote('127.{1,2}', view(select * from numbers(1e6))) order by number limit 10 settings distributed_push_down_limit=0;
Expression (Projection)
Limit (preliminary LIMIT (without OFFSET))
Sorting (Merge sorted streams after aggregation stage for ORDER BY)
Union
Sorting (Sorting for ORDER BY)
Expression ((Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))))
ReadFromStorage (SystemNumbers)
ReadFromRemote (Read from remote replica)
explain select * from remote('127.{1,2}', view(select * from numbers(1e6))) order by number limit 10 settings distributed_push_down_limit=1;
Expression (Projection)
Limit (preliminary LIMIT (without OFFSET))
Sorting (Merge sorted streams after aggregation stage for ORDER BY)
Union
Sorting (Sorting for ORDER BY)
Expression ((Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))))
ReadFromStorage (SystemNumbers)
ReadFromRemote (Read from remote replica)