Cannot be retrieved after field extraction- If field extraction is classified as ` no search is performed after field extraction. However, if you classify | , in the same way, extraction and search will work normally. Is there any problem?
_raw
field1`field2`field3`field4`field5`
ex) (?P<field_name>[^\`]*)`(?P<field_name2>[^\`]*)`(?P<field_name3>[^\`]*)`(?P<field_name4>[^\`]*)`(?P<field_name5>[^\`]*)`
Have you tried escaping all the backticks?
(?P<field_name>[^\`]*)\`(?P<field_name2>[^\`]*)\`(?P<field_name3>[^\`]*)\`(?P<field_name4>[^\`]*)\`(?P<field_name5>[^\`]*)\`
Yes, I used that method, too.