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37 lines
1.7 KiB
Plaintext
37 lines
1.7 KiB
Plaintext
clickhouse-client --enable_analyzer=1 --query_kind secondary_query -q explain plan header=1 select toString(dummy) as dummy from system.one group by dummy
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Expression ((Project names + Projection))
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Header: dummy String
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Aggregating
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Header: toString(__table1.dummy) String
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Expression ((Before GROUP BY + Change column names to column identifiers))
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Header: toString(__table1.dummy) String
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ReadFromStorage (SystemOne)
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Header: dummy UInt8
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clickhouse-local --enable_analyzer=1 --query_kind secondary_query -q explain plan header=1 select toString(dummy) as dummy from system.one group by dummy
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Expression ((Project names + Projection))
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Header: dummy String
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Aggregating
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Header: toString(__table1.dummy) String
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Expression ((Before GROUP BY + Change column names to column identifiers))
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Header: toString(__table1.dummy) String
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ReadFromStorage (SystemOne)
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Header: dummy UInt8
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clickhouse-client --enable_analyzer=1 --query_kind initial_query -q explain plan header=1 select toString(dummy) as dummy from system.one group by dummy
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Expression ((Project names + Projection))
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Header: dummy String
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Aggregating
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Header: __table1.dummy UInt8
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Expression ((Before GROUP BY + Change column names to column identifiers))
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Header: __table1.dummy UInt8
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ReadFromStorage (SystemOne)
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Header: dummy UInt8
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clickhouse-local --enable_analyzer=1 --query_kind initial_query -q explain plan header=1 select toString(dummy) as dummy from system.one group by dummy
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Expression ((Project names + Projection))
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Header: dummy String
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Aggregating
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Header: __table1.dummy UInt8
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Expression ((Before GROUP BY + Change column names to column identifiers))
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Header: __table1.dummy UInt8
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ReadFromStorage (SystemOne)
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Header: dummy UInt8
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