Thread: pgsql: Add support for optionally escaping periods when converting SQL

Log Message:
-----------
Add support for optionally escaping periods when converting SQL identifiers
to XML names, which will be required for supporting XML export.

Modified Files:
--------------
    pgsql/src/backend/parser:
        parse_expr.c (r1.210 -> r1.211)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_expr.c.diff?r1=1.210&r2=1.211)
    pgsql/src/backend/utils/adt:
        xml.c (r1.26 -> r1.27)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/xml.c.diff?r1=1.26&r2=1.27)
    pgsql/src/include/utils:
        xml.h (r1.14 -> r1.15)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/xml.h.diff?r1=1.14&r2=1.15)