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11 lines
569 B
SQL
11 lines
569 B
SQL
CREATE TABLE mt_match_pk (v String) ENGINE = MergeTree ORDER BY v SETTINGS index_granularity = 1;
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INSERT INTO mt_match_pk VALUES ('a'), ('aaa'), ('aba'), ('bac'), ('acccca');
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SET force_primary_key = 1;
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SELECT count() FROM mt_match_pk WHERE match(v, '^a');
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SELECT count() FROM mt_match_pk WHERE match(v, '^ab');
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SELECT count() FROM mt_match_pk WHERE match(v, '^a.');
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SELECT count() FROM mt_match_pk WHERE match(v, '^ab*');
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SELECT count() FROM mt_match_pk WHERE match(v, '^ac?');
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SELECT count() FROM mt_match_pk WHERE match(v, '^a$|^b'); -- {serverError INDEX_NOT_USED}
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