37 lines
437 B
Plaintext
37 lines
437 B
Plaintext
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--
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-- Regular expression tests
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--
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-- Don't want to have to double backslashes in regexes
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set standard_conforming_strings = on;
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-- Test simple quantified backrefs
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select 'bbbbb' ~ '^([bc])\1*$' as t;
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t
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---
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t
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(1 row)
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select 'ccc' ~ '^([bc])\1*$' as t;
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t
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---
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t
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(1 row)
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select 'xxx' ~ '^([bc])\1*$' as f;
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f
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---
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f
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(1 row)
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select 'bbc' ~ '^([bc])\1*$' as f;
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f
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---
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f
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(1 row)
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select 'b' ~ '^([bc])\1*$' as t;
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t
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---
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t
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(1 row)
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