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Regex to extract first two octets of IP address in hive

原文 2014-12-30 10:50:12 6 1 regex/ hive/ rlike

I want to extract only first two octets of IP address in hive. Can anybody please tell me equivalent Regex supported in Hive?

For example,extract '192.96.0.0' from ip_address '192.96.45.33'.

1 answers

192\\.96\\.\\d{3}\\.\\d{3}

Guess this should work as Hive uses Java format.

or

192\\.96\\.(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.)(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)

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