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52 lines
2.4 KiB
SQL
52 lines
2.4 KiB
SQL
-- error cases
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SELECT extractAllGroups(); --{serverError 42} not enough arguments
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SELECT extractAllGroups('hello'); --{serverError 42} not enough arguments
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SELECT extractAllGroups('hello', 123); --{serverError 43} invalid argument type
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SELECT extractAllGroups(123, 'world'); --{serverError 43} invalid argument type
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SELECT extractAllGroups('hello world', '((('); --{serverError 427} invalid re
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SELECT extractAllGroups('hello world', materialize('\\w+')); --{serverError 44} non-const needle
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SELECT '0 groups, zero matches';
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SELECT extractAllGroups('hello world', '\\w+'); -- { serverError 36 }
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SELECT '1 group, multiple matches, String and FixedString';
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SELECT extractAllGroups('hello world', '(\\w+)');
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SELECT extractAllGroups('hello world', CAST('(\\w+)' as FixedString(5)));
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SELECT extractAllGroups(CAST('hello world' AS FixedString(12)), '(\\w+)');
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SELECT extractAllGroups(CAST('hello world' AS FixedString(12)), CAST('(\\w+)' as FixedString(5)));
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SELECT extractAllGroups(materialize(CAST('hello world' AS FixedString(12))), '(\\w+)');
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SELECT extractAllGroups(materialize(CAST('hello world' AS FixedString(12))), CAST('(\\w+)' as FixedString(5)));
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SELECT 'mutiple groups, multiple matches';
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SELECT extractAllGroups('abc=111, def=222, ghi=333 "jkl mno"="444 foo bar"', '("[^"]+"|\\w+)=("[^"]+"|\\w+)');
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SELECT 'big match';
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SELECT
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length(haystack), length(matches[1]), length(matches), arrayMap((x) -> length(x), arrayMap(x -> x[1], matches))
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FROM (
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SELECT
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repeat('abcdefghijklmnopqrstuvwxyz', number * 10) AS haystack,
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extractAllGroups(haystack, '(abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz)') AS matches
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FROM numbers(3)
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);
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SELECT 'lots of matches';
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SELECT
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length(haystack), length(matches[1]), length(matches), arrayReduce('sum', arrayMap((x) -> length(x), arrayMap(x -> x[1], matches)))
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FROM (
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SELECT
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repeat('abcdefghijklmnopqrstuvwxyz', number * 10) AS haystack,
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extractAllGroups(haystack, '(\\w)') AS matches
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FROM numbers(3)
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);
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SELECT 'lots of groups';
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SELECT
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length(haystack), length(matches[1]), length(matches), arrayMap((x) -> length(x), arrayMap(x -> x[1], matches))
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FROM (
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SELECT
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repeat('abcdefghijklmnopqrstuvwxyz', number * 10) AS haystack,
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extractAllGroups(haystack, repeat('(\\w)', 100)) AS matches
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FROM numbers(3)
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);
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