docs: document behavior of CHAR() comparisons with chars < space

Bruce Momjian <bruce@momjian.us>

Commit: 8457d0beca731bf062bb0d126870d9a291ab47a5
Author: Bruce Momjian <bruce@momjian.us>
Date: 2014-02-24T17:09:23Z
Releases: 9.4.0
docs: document behavior of CHAR() comparisons with chars < space

Space trimming rather than space-padding causes unusual behavior, which
might not be standards-compliant.

Also remove recently-added now-redundant C comment.

Files

PathChange+/−
doc/src/sgml/datatype.sgml modified +7 −4
src/backend/utils/adt/varchar.c modified +0 −12