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39 lines
1.2 KiB
XML
39 lines
1.2 KiB
XML
<test>
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<create_query>
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create table if not exists whitespaces
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engine = MergeTree() partition by tuple() order by tuple()
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as
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with 32 - log2(intHash32(number)) + 1 as num_spaces,
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repeat(' ', toUInt32(num_spaces)) as spaces
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select spaces || toString(number) || spaces value
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from numbers_mt(100000000);
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</create_query>
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<substitutions>
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<substitution>
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<name>func</name>
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<values>
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<value>trimLeft(value)</value>
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<value>trimRight(value)</value>
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<value>trimBoth(value)</value>
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</values>
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</substitution>
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<substitution>
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<name>func_slow</name>
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<values>
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<value>replaceRegexpOne(value, '^ *', '')</value>
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<value>replaceRegexpOne(value, ' *$', '')</value>
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<value>replaceRegexpAll(value, '^ *| *$', '')</value>
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</values>
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</substitution>
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</substitutions>
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<query>SELECT {func} FROM whitespaces FORMAT Null</query>
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<query>SELECT {func_slow} FROM whitespaces LIMIT 10000000 FORMAT Null</query>
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<drop_query>DROP TABLE IF EXISTS whitespaces</drop_query>
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</test>
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