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6501b0b13c
* feat: MergeScan print input Signed-off-by: discord9 <discord9@163.com> * test: fix ut Signed-off-by: discord9 <discord9@163.com> --------- Signed-off-by: discord9 <discord9@163.com>
69 lines
3.4 KiB
Plaintext
69 lines
3.4 KiB
Plaintext
SELECT * FROM (SELECT SUM(number) FROM numbers LIMIT 100000000000) LIMIT 0;
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EXPLAIN SELECT * FROM (SELECT SUM(number) FROM numbers LIMIT 100000000000) LIMIT 0;
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+---------------+-------------------------------------------------------------------------------+
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| plan_type | plan |
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+---------------+-------------------------------------------------------------------------------+
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| logical_plan | MergeScan [is_placeholder=false, remote_input=[ |
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| | Limit: skip=0, fetch=0 |
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| | Projection: sum(numbers.number) |
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| | Limit: skip=0, fetch=100000000000 |
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| | Projection: sum(numbers.number) |
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| | Aggregate: groupBy=[[]], aggr=[[sum(CAST(numbers.number AS UInt64))]] |
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| | TableScan: numbers |
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| | ]] |
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| physical_plan | EmptyExec |
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+---------------+-------------------------------------------------------------------------------+
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EXPLAIN SELECT * FROM (SELECT SUM(number) FROM numbers LIMIT 100000000000) WHERE 1=0;
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+---------------+-------------------------------------------------------------------------------+
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| plan_type | plan |
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+---------------+-------------------------------------------------------------------------------+
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| logical_plan | MergeScan [is_placeholder=false, remote_input=[ |
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| | Projection: sum(numbers.number) |
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| | Filter: Int64(1) = Int64(0) |
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| | Limit: skip=0, fetch=100000000000 |
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| | Projection: sum(numbers.number) |
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| | Aggregate: groupBy=[[]], aggr=[[sum(CAST(numbers.number AS UInt64))]] |
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| | TableScan: numbers |
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| | ]] |
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| physical_plan | EmptyExec |
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+---------------+-------------------------------------------------------------------------------+
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CREATE TABLE test (a TIMESTAMP TIME INDEX, b INTEGER);
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Affected Rows: 0
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INSERT INTO test VALUES (11, 23), (12, 21), (13, 22);
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Affected Rows: 3
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SELECT a FROM test LIMIT 1;
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+-------------------------+
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| a |
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+-------------------------+
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| 1970-01-01T00:00:00.011 |
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+-------------------------+
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SELECT b FROM test ORDER BY b LIMIT 2 OFFSET 0;
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+----+
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| b |
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+----+
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| 21 |
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| 22 |
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+----+
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DROP TABLE test;
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Affected Rows: 0
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