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67 lines
2.9 KiB
XML
67 lines
2.9 KiB
XML
<!-- Simple benchmark to verify the caching of compiled re2 patterns (e.g. LIKE/MATCH) -->
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<test>
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<substitutions>
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<substitution>
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<name>numbers</name>
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<values>
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<value>numbers_mt(1500000)</value>
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</values>
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</substitution>
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<substitution>
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<name>needle_like</name>
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<values>
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<!-- simple patterns, all unique -->
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<value>'%' || toString(number) || '_'</value>
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<!-- simple patterns, low distinctness (10 patterns) -->
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<value>'%' || toString(number % 10) || '_'</value>
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</values>
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</substitution>
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<substitution>
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<name>needle_match</name>
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<values>
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<!-- simple patterns, all unique -->
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<value>'.*' || toString(number) || '.'</value>
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<!-- simple patterns, low distinctness (10 patterns) -->
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<value>'.*' || toString(number % 10) || '.'</value>
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<!-- complex patterns, all unique - this is very slow (from 2 to 15 seconds) -->
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<!-- <value>'([a-zA-Z][a-zA-Z0-9]*)://([^ /]+)(/[^ ]*)?([^ @]+)@([^ @]+)([0-9][0-9]?)/([0-9][0-9]?)/([0-9][0-9]([0-9][0-9])?)(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])' || toString(number)</value> -->
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<!-- complex patterns, low distinctness -->
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<value>'([a-zA-Z][a-zA-Z0-9]*)://([^ /]+)(/[^ ]*)?([^ @]+)@([^ @]+)([0-9][0-9]?)/([0-9][0-9]?)/([0-9][0-9]([0-9][0-9])?)(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])' || toString(number % 10)</value>
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<!-- Note: for this benchmark, we are only interested in compilation time, not correctness, evaluation time or the result.
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Therefore, this is a maximally expensive to compile "pattern from hell": a concatenation of || email || date ||
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ip4 || <number (% 10), see http://lh3lh3.users.sourceforge.net/reb.shtml and https://github.com/mariomka/regex-benchmark -->
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</values>
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</substitution>
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</substitutions>
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<!-- const needle (just for reference) -->
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<query>
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select toString(number) as haystack, like(haystack, '%x_')
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from(select * from {numbers})
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format Null
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</query>
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<query>
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select toString(number) as haystack, match(haystack, '.*x.')
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from(select * from {numbers})
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format Null
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</query>
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<!-- non-const needle -->
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<query>
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select toString(number) as haystack, {needle_like} as needle, like(haystack, needle)
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from (select * from {numbers})
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format Null
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</query>
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<query>
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select toString(number) as haystack, {needle_match} as needle, match(haystack, needle)
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from (select * from {numbers})
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format Null
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</query>
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</test>
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