errposition

John Naylor <johncnaylorls@gmail.com> writes:

In doc/src/sgml/sources.sgml under "available auxiliary routines for
ereport", we have

"errposition(int cursorpos) specifies the textual location of an error
within a query string. Currently it is only useful for errors detected
in the lexical and syntactic analysis phases of query processing."

...but I don't see that function used that way. It seems this should
be parser_errposition instead. I'll go make it so unless someone tells
me I'm missing something.

errposition is the underlying function exposed by elog.c, and
that is what this documentation is intending to document.
parser_errposition is a wrapper that is specific to usages in
src/backend/parser/. It might be (I didn't check) that all existing
calls to errposition go through parser_errposition, but that seems
like a happenstance not a reason to contort the documentation.

regards, tom lane