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Allow default transaction isolation level (a.k.a. set session

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characteristics) to be set through GUC.
This commit is contained in:
Peter Eisentraut
2001-06-30 22:03:26 +00:00
parent e4a40cc353
commit 10e9cd2299
6 changed files with 79 additions and 87 deletions
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32
src/backend/utils/misc/guc.c
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@ -4,7 +4,7 @@
* Support for grand unified configuration scheme, including SET
* command, configuration file, and command line options.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.43 2001/06/27 23:31:39 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.44 2001/06/30 22:03:26 petere Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@ -51,6 +51,11 @@ extern char *Syslog_ident;
static bool check_facility(const char *facility);
#endif
static char *default_iso_level_string;
static bool check_defaultxactisolevel(const char *value);
static void assign_defaultxactisolevel(const char *value);
/*
* Debugging options
*/
@ -355,6 +360,9 @@ static struct config_real
static struct config_string
ConfigureNamesString[] =
{
{"default_transaction_isolation", PGC_USERSET, &default_iso_level_string,
"read committed", check_defaultxactisolevel, assign_defaultxactisolevel},
{"dynamic_library_path", PGC_SUSET, &Dynamic_library_path,
"$libdir", NULL, NULL},
@ -1092,3 +1100,25 @@ check_facility(const char *facility)
}
#endif
static bool
check_defaultxactisolevel(const char *value)
{
return (strcasecmp(value, "read committed") == 0
|| strcasecmp(value, "serializable") == 0)
? true : false;
}
static void
assign_defaultxactisolevel(const char *value)
{
if (strcasecmp(value, "serializable") == 0)
DefaultXactIsoLevel = XACT_SERIALIZABLE;
else if (strcasecmp(value, "read committed") == 0)
DefaultXactIsoLevel = XACT_READ_COMMITTED;
else
elog(ERROR, "bogus transaction isolation level");
}