Regular expression with calculated field in Google Data Studio

问题

I have the following calculated field but It doesn't work :

sum(CASE WHEN REGEXP_MATCH(url, 'foo') THEN 1 ELSE 0 END)

My goal is to sum all the url containing the word 'foo'. Does it make sense ? Where is my mistake ?

Thanks

回答1:

You need to use .*foo.* since REGEXP_MATCH requires a full string match:

REGEXP_MATCH attempts to match the entire string contained in field_expression.

Use

sum(CASE WHEN REGEXP_MATCH(url, '.*foo.*') THEN 1 ELSE 0 END)
                                 ^^   ^^

来源：https://stackoverflow.com/questions/41611288/regular-expression-with-calculated-field-in-google-data-studio