2020-02-14 20:11:38 +00:00
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drop table if exists A1;
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drop table if exists A_M;
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CREATE TABLE A1( a DateTime ) ENGINE = MergeTree ORDER BY tuple();
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CREATE TABLE A_M as A1 ENGINE = Merge(currentDatabase(), '^A1$');
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insert into A1(a) select now();
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2020-02-14 20:17:29 +00:00
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set optimize_move_to_prewhere=0;
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2020-02-14 20:11:38 +00:00
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SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A_M PREWHERE tupleElement((1, 1), 1) =1;
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SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A_M WHERE tupleElement((1, 1), 1) =1;
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SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A1 PREWHERE tupleElement((1, 1), 1) =1;
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drop table A1;
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drop table A_M;
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