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Write psql's ~/.psql_history file using history_truncate_file() and

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append_history(), if libreadline is new enough to have those functions
(they seem to be present at least since 4.2; but libedit may not have them).
This gives significantly saner behavior when two or more sessions overlap in
their use of the history file; although having two sessions exit at just the
same time is still perilous to your history.  The behavior of \s remains
unchanged, ie, overwrite whatever was there.
Per bug #5052 from Marek Wójtowicz.
This commit is contained in:
Tom Lane
2009-09-13 22:18:22 +00:00
parent eb62398f39
commit e97281c46c
7 changed files with 88 additions and 31 deletions
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4
src/bin/psql/command.c
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@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2009, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/command.c,v 1.206 2009/06/11 14:49:07 momjian Exp $
* $PostgreSQL: pgsql/src/bin/psql/command.c,v 1.207 2009/09/13 22:18:22 tgl Exp $
*/
#include "postgres_fe.h"
#include "command.h"
@ -908,7 +908,7 @@ exec_command(const char *cmd,
expand_tilde(&fname);
/* This scrolls off the screen when using /dev/tty */
success = saveHistory(fname ? fname : DEVTTY, false);
success = saveHistory(fname ? fname : DEVTTY, -1, false, false);
if (success && !pset.quiet && fname)
printf(gettext("Wrote history to file \"%s/%s\".\n"),
pset.dirname ? pset.dirname : ".", fname);