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34 lines
946 B
SQL
34 lines
946 B
SQL
SELECT '**** constant-constant comparisons ****';
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SELECT 'ab\0c' < 'ab\0d', 'ab\0c' > 'ab\0d';
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SELECT 'a' < 'a\0b', 'a' > 'a\0b';
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SELECT 'a\0\0\0\0' < 'a\0\0\0', 'a\0\0\0\0' > 'a\0\0\0';
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DROP TABLE IF EXISTS test.strings;
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CREATE TABLE test.strings(x String, y String) ENGINE = TinyLog;
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INSERT INTO test.strings VALUES
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('abcde\0', 'abcde'), ('aa\0a', 'aa\0b'), ('aa', 'aa\0'), ('a\0\0\0\0', 'a\0\0\0'), ('a\0\0', 'a\0'), ('a', 'a');
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SELECT '**** vector-vector comparisons ****';
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SELECT x < y, x > y FROM test.strings;
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SELECT '**** vector-constant comparisons ****';
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SELECT x < 'aa', x > 'aa' FROM test.strings;
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SELECT '****';
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SELECT x < 'a\0', x > 'a\0' FROM test.strings;
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SELECT '**** single-column sort ****'; -- Uses ColumnString::getPermutation()
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SELECT * FROM test.strings ORDER BY x;
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SELECT '**** multi-column sort ****'; -- Uses ColumnString::compareAt()
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SELECT * FROM test.strings ORDER BY x, y;
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DROP TABLE test.strings;
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