pgsql-server/doc/src/sgml extend.sgml postgres ...

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: petere@postgresql.org 03/04/13 05:57:35

Modified files:
doc/src/sgml : extend.sgml postgres.sgml xindex.sgml

Log message:
Integrate the operator class section into the comprehensive extending SQL
chapter as well.