Using regular expressions with Redshift

mat007g — Sat, 16 Nov 2024 07:55:36 GMT

Hi,

I am using a tRedshiftRow component to update a Redshift table. Within the update statement , I am using the Redshift regex_replace function to remove multiple consecutive whitespaces. If I execute the update statement outside of Talend, via a Redshift client, the update statement works as it should be. However, when being executed during via Talend, multiple whitespaces are not being replaced, but words containing 'ss' are being replaced with a whitespace.

The regex expression used is: regex_replace(word, '\\s{2,}',' ')

I tried removing one of the back-slashes but it gave an error.

Any hints on how to solve this by keeping the query intact?

Thanks,

Re: Using regular expressions with Redshift

vapukov — Fri, 20 Jul 2018 12:55:54 GMT

if You use this function in SQL code, like "select regex_replace(word, '\\s{2,}',' ') from ...", java look for \\ as for \

so You need use - regex_replace(word, '\\\\s{2,}',' ')

topic Using regular expressions with Redshift in Talend Studio

Using regular expressions with Redshift

Re: Using regular expressions with Redshift