How to convert oracle regex into vertica compatible?

Find the below wildcard used in regular expressions. I need to convert them to vertica compatible. Please help me on this...


^http://www.nejm.org/toc/nejm/\d../
[C,c][O,o][P,p][D,d]
(?i)reader
/\d\d\d\d/\d\d/\d\d/

Thanks
Laxmi

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