Re: [PATCHES] (8.1) to_timestamp correction (epoch to timestamptz)
Bruce, Please note that this patch is a correction and replacement for an earlier patch in the queue. The patch accompanying the message http://candle.pha.pa.us/mhonarc/patches/msg8.html should be removed from the queue and not applied. The one (originally) attached to this message should be applied. Thanks! Michael Glaesemann grzm myrealbox com On Jun 5, 2005, at 9:17 AM, Bruce Momjian wrote: Your patch has been added to the PostgreSQL unapplied patches list at: http://momjian.postgresql.org/cgi-bin/pgpatches It will be applied as soon as one of the PostgreSQL committers reviews and approves it. -- - Michael Glaesemann wrote: Note: This patch is intended for 8.1 (as was the original). I believe the previous patch I submitted to convert Unix epoch to timestamptz contains a bug relating to its use of AT TIME ZONE. Please find attached a corrected patch diffed against HEAD, which includes documentation. The original function was equivalent to CREATE FUNCTION to_timestamp (DOUBLE PRECISION) RETURNS timestamptz LANGUAGE SQL AS ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) '; The AT TIME ZONE 'UTC' removes the time zone from the timestamptz, returning timestamp. However, the function is declared to return timestamptz. The original patch appeared to work, but creating this equivalent function fails as it doesn't return the declared datatype. The corrected function restores the time zone with an additional AT TIME ZONE 'UTC': CREATE FUNCTION to_timestamp (double precision) returns timestamptz language sql as ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) at time zone \'UTC\' '; Michael Glaesemann grzm myrealbox com [ Attachment, skipping... ] ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
Re: [PATCHES] (8.1) to_timestamp correction (epoch to timestamptz)
This has been saved for the 8.1 release: http:/momjian.postgresql.org/cgi-bin/pgpatches2 --- Michael Glaesemann wrote: Note: This patch is intended for 8.1 (as was the original). I believe the previous patch I submitted to convert Unix epoch to timestamptz contains a bug relating to its use of AT TIME ZONE. Please find attached a corrected patch diffed against HEAD, which includes documentation. The original function was equivalent to CREATE FUNCTION to_timestamp (DOUBLE PRECISION) RETURNS timestamptz LANGUAGE SQL AS ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) '; The AT TIME ZONE 'UTC' removes the time zone from the timestamptz, returning timestamp. However, the function is declared to return timestamptz. The original patch appeared to work, but creating this equivalent function fails as it doesn't return the declared datatype. The corrected function restores the time zone with an additional AT TIME ZONE 'UTC': CREATE FUNCTION to_timestamp (double precision) returns timestamptz language sql as ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) at time zone \'UTC\' '; Michael Glaesemann grzm myrealbox com [ Attachment, skipping... ] ---(end of broadcast)--- TIP 8: explain analyze is your friend -- Bruce Momjian| http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup.| Newtown Square, Pennsylvania 19073 ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
[PATCHES] (8.1) to_timestamp correction (epoch to timestamptz)
Note: This patch is intended for 8.1 (as was the original). I believe the previous patch I submitted to convert Unix epoch to timestamptz contains a bug relating to its use of AT TIME ZONE. Please find attached a corrected patch diffed against HEAD, which includes documentation. The original function was equivalent to CREATE FUNCTION to_timestamp (DOUBLE PRECISION) RETURNS timestamptz LANGUAGE SQL AS ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) '; The AT TIME ZONE 'UTC' removes the time zone from the timestamptz, returning timestamp. However, the function is declared to return timestamptz. The original patch appeared to work, but creating this equivalent function fails as it doesn't return the declared datatype. The corrected function restores the time zone with an additional AT TIME ZONE 'UTC': CREATE FUNCTION to_timestamp (double precision) returns timestamptz language sql as ' select ( (\'epoch\'::timestamptz + $1 * \'1 second\'::interval) at time zone \'UTC\' ) at time zone \'UTC\' '; Michael Glaesemann grzm myrealbox com to_timestamp-20041212.diff Description: application/text ---(end of broadcast)--- TIP 8: explain analyze is your friend
