[ML] Fix 2 digit year regex in find_file_structure #51469
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The DATE and DATESTAMP Grok patterns match 2 digit years as well as 4 digit years. The pattern determination in find_file_structure worked correctly in this case, but the regex used to create a multi-line start pattern was assuming a 4 digit year. Also, the quick rule-out patterns did not always correctly consider 2 digit years, meaning that detection was inconsistent. This change fixes both problems, and also extends the tests for DATE and DATESTAMP to check both 2 and 4 digit years.
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Pinging @elastic/ml-core (:ml) |
benwtrent
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Jan 27, 2020
droberts195
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Jan 27, 2020
The DATE and DATESTAMP Grok patterns match 2 digit years as well as 4 digit years. The pattern determination in find_file_structure worked correctly in this case, but the regex used to create a multi-line start pattern was assuming a 4 digit year. Also, the quick rule-out patterns did not always correctly consider 2 digit years, meaning that detection was inconsistent. This change fixes both problems, and also extends the tests for DATE and DATESTAMP to check both 2 and 4 digit years.
droberts195
added a commit
that referenced
this pull request
Jan 27, 2020
The DATE and DATESTAMP Grok patterns match 2 digit years as well as 4 digit years. The pattern determination in find_file_structure worked correctly in this case, but the regex used to create a multi-line start pattern was assuming a 4 digit year. Also, the quick rule-out patterns did not always correctly consider 2 digit years, meaning that detection was inconsistent. This change fixes both problems, and also extends the tests for DATE and DATESTAMP to check both 2 and 4 digit years.
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The DATE and DATESTAMP Grok patterns match 2 digit years
as well as 4 digit years. The pattern determination in
find_file_structure worked correctly in this case, but
the regex used to create a multi-line start pattern was
assuming a 4 digit year. Also, the quick rule-out
patterns did not always correctly consider 2 digit years,
meaning that detection was inconsistent.
This change fixes both problems, and also extends the
tests for DATE and DATESTAMP to check both 2 and 4 digit
years.