date - Apache PIG - Guarantee that all the value in a column follow the Schema 'yyyy-MM-dd' -

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i've dataset 4 columns , want know if column b have value in following format: ('yyyy-mm-dd'), if job detect value not corresponds format want put value null.

could in pig or must python embed pig?

many thanks!

(sorry reply answer instead of comment don't have enough reputation comment on question)

this might useful :-

java udf date regex extractor pig?


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