Hello Dmitry,
> A few gotchas:
>
> I haven't touched gettoken_tsvector() yet. As a result, the following
> queries produce errors:
>
> select websearch_to_tsquery('simple', '''');
> ERROR: syntax error in tsquery: "'"
>
> select websearch_to_tsquery('simple', '\');
> ERROR: there is no escaped character: "\"
>
> Maybe there's more. The question is: should we fix those, or it's fine as it
> is? I don't have a strong opinion about this.
It doesn't sound right to me to accept any input as a general rule but
sometimes return errors nevertheless. That API would be complicated for
the users. Thus I suggest to accept any garbage and try our best to
interpret it.
--
Best regards,
Aleksander Alekseev