Обсуждение: pgsql: Added the Skytools extended transaction ID module to contrib as

Log Message:
-----------
Added the Skytools extended transaction ID module to contrib as discussed
on CORE previously.

This module offers transaction ID's containing the original XID and the
transaction epoch as a bigint value to the user level. It also provides
a special txid_snapshot data type that contains an entire transactions
visibility snapshot information, which is useful to determine if a
particular txid was visible to a transaction or not.

The module has been tested by porting Slony-I from using its original
xxid data type.

Jan

Modified Files:
--------------
    pgsql/contrib:
        Makefile (r1.78 -> r1.79)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/Makefile?r1=1.78&r2=1.79)

Added Files:
-----------
    pgsql/contrib/txid:
        Makefile (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/Makefile?rev=1.1&content-type=text/x-cvsweb-markup)
        README.txid (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/README.txid?rev=1.1&content-type=text/x-cvsweb-markup)
        txid.c (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/txid.c?rev=1.1&content-type=text/x-cvsweb-markup)
        txid.sql.in (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/txid.sql.in?rev=1.1&content-type=text/x-cvsweb-markup)
        uninstall_txid.sql (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/uninstall_txid.sql?rev=1.1&content-type=text/x-cvsweb-markup)
    pgsql/contrib/txid/expected:
        txid.out (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/expected/txid.out?rev=1.1&content-type=text/x-cvsweb-markup)
    pgsql/contrib/txid/sql:
        txid.sql (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/txid/sql/txid.sql?rev=1.1&content-type=text/x-cvsweb-markup)

wieck@postgresql.org (Jan Wieck) writes:
> Added the Skytools extended transaction ID module to contrib as discussed
> on CORE previously.

Seems to have some portability issues ... you can not assume that
strtoull exists, and you shouldn't be assuming that it's appropriate
in the first place.

            regards, tom lane