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Commitff85306

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Add value 'current' for recovery_target_timeline
This value represents the default behavior of using the currenttimeline. Previously, this was represented by an empty string.(Before the removal of recovery.conf, this setting could not be chosenexplicitly but was used when recovery_target_timeline was notmentioned at all.)Discussion:https://www.postgresql.org/message-id/flat/6dd2c23a-4162-8469-410f-bfe146e28c0c@2ndquadrant.com/Reviewed-by: David Steele <david@pgmasters.net>Reviewed-by: Michael Paquier <michael@paquier.xyz>
1 parent43cbeda commitff85306

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3 files changed

+8
-7
lines changed

3 files changed

+8
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lines changed

‎doc/src/sgml/config.sgml

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3350,9 +3350,11 @@ restore_command = 'copy "C:\\server\\archivedir\\%f" "%p"' # Windows
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</term>
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<listitem>
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<para>
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Specifies recovering into a particular timeline. The default is
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to recover along the same timeline that was current when the
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base backup was taken. Setting this to <literal>latest</literal> recovers
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Specifies recovering into a particular timeline. The value can be a
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numeric timeline ID or a special value. The value
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<literal>current</literal> recovers along the same timeline that was
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current when the base backup was taken. That is the default. The
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value <literal>latest</literal> recovers
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to the latest timeline found in the archive, which is useful in
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a standby server. Other than that you only need to set this parameter
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in complex re-recovery situations, where you need to return to

‎src/backend/utils/misc/guc.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -3387,7 +3387,7 @@ static struct config_string ConfigureNamesString[] =
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NULL
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},
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&recovery_target_timeline_string,
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"",
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"current",
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check_recovery_target_timeline,assign_recovery_target_timeline,NULL
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},
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@@ -11031,7 +11031,7 @@ check_recovery_target_timeline(char **newval, void **extra, GucSource source)
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RecoveryTargetTimeLineGoalrttg=RECOVERY_TARGET_TIMELINE_CONTROLFILE;
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RecoveryTargetTimeLineGoal*myextra;
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11034-
if (strcmp(*newval,"")==0)
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if (strcmp(*newval,"current")==0)
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rttg=RECOVERY_TARGET_TIMELINE_CONTROLFILE;
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elseif (strcmp(*newval,"latest")==0)
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rttg=RECOVERY_TARGET_TIMELINE_LATEST;

‎src/backend/utils/misc/postgresql.conf.sample

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -261,8 +261,7 @@
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# just after the specified recovery target (on)
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# just before the recovery target (off)
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# (change requires restart)
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#recovery_target_timeline = ''# unset means read from control file (default),
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# or set to 'latest' or timeline ID
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#recovery_target_timeline = 'current'# 'current', 'latest', or timeline ID
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# (change requires restart)
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#recovery_target_action = 'pause'# 'pause', 'promote', 'shutdown'
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# (change requires restart)

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