Last updated
Last updated
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Currently, there is no support in Snowflake for extended regular expression beyond the POSIX Basic Regular Expression syntax.
This EWI is added every time a function call to REGEX_SUBSTR, REGEX_REPLACE, or REGEX_INSTR is transformed to SnowFlake to warn the user about possible unsupported regular expressions. Some of the features not supported are lookahead, lookbehind, and non-capturing groups.
Check the regular expression used in each case to determine whether it needs manual intervention. More information about expanded regex support and alternatives in SnowFlake can be found .
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Regexp_Substr Function only supports POSIX regular expressions.