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Implement isolation levels read uncommitted and repeatable read as acting

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This commit is contained in:
Peter Eisentraut
2003-11-06 22:08:15 +00:00
parent 144a2ecd57
commit 96889392e9
15 changed files with 156 additions and 69 deletions
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14
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.164 2003/10/18 22:59:09 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.165 2003/11/06 22:08:15 petere Exp $
*
*--------------------------------------------------------------------
*/
@ -1346,7 +1346,7 @@ static struct config_string ConfigureNamesString[] =
{"default_transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT,
gettext_noop("Sets the transaction isolation level of each new transaction."),
gettext_noop("Each SQL transaction has an isolation level, which "
"can be either \"read committed\" or \"serializable\".")
"can be either \"read uncommitted\", \"read committed\", \"repeatable read\", or \"serializable\".")
},
&default_iso_level_string,
"read committed", assign_defaultxactisolevel, NULL
@ -4238,11 +4238,21 @@ assign_defaultxactisolevel(const char *newval, bool doit, bool interactive)
if (doit)
DefaultXactIsoLevel = XACT_SERIALIZABLE;
}
else if (strcasecmp(newval, "repeatable read") == 0)
{
if (doit)
DefaultXactIsoLevel = XACT_REPEATABLE_READ;
}
else if (strcasecmp(newval, "read committed") == 0)
{
if (doit)
DefaultXactIsoLevel = XACT_READ_COMMITTED;
}
else if (strcasecmp(newval, "read uncommitted") == 0)
{
if (doit)
DefaultXactIsoLevel = XACT_READ_UNCOMMITTED;
}
else
return NULL;
return newval;