The following bug has been logged on the website:
Bug reference: 16168
Logged by: Chris Waters
Email address: chris(at)aha(dot)io
PostgreSQL version: 10.5
Operating system: Any
Description:
When parsing an English string to form a term vector the parser will treat
any words separated by / as a file path. This is a problem when / is used in
normal English, e.g.
select to_tsvector('morning/afternoon');
to_tsvector
-----------------------
'morning/afternoon':1
I think it would be better if the parser output both the "file" and
"asciiword" versions of this string and indexed both.