title: using regexp_replace for replacing special characters in snowflake
body: <p>there are special characters in one of column and need to replace with space.
  i am using REGEXP_REPLACE, but throwing error as the columns is having collation as 'en-ci'</p>
  <p>SQL COMMAND :
  <code>select REGEXP_REPLACE(INPUT_STRING, '[+,()]', ' ',1,0) FROM TABLE;</code></p>
  <p>below is the error:
  SQL compilation error: <code>error line 1 at position 7 Function REGEXP_REPLACE does not support collation.</code></p>
  <p>your suggessions may greatly helpful.</p>
  <p>Thanks.</p>