From: Sferacarta Software <sferac@bo.nettuno.it>
To: Byron Nikolaidis <byronn@insightdist.com>
To: pgsql-interfaces@postgreSQL.org <pgsql-interfaces@postgresql.org>
Subject: Re[2]: [INTERFACES] PSQLODBC and TRANSACTIONS
Date: Wed, 13 Jan 1999 14:44:28 +0100
Message-ID: <18614.990113@bo.nettuno.it> (raw)
References: <369B706B.BEE07230@insightdist.com>
Hello Byron,
martedì, 12 gennaio 99, you wrote:
BN> Jose' Soares wrote:
>> Hi,
>>
>> I'm trying transactions using M$-access and PSQLODBC without success,
>> Seems that backend locks itself
>> by opening two connections to work on the same table.
>>
>> I have a table with 3 rows:
>>
>> codice nome cap
>> ---------------------------
>> 1 pippo 0
>> 2 pluto 0
>> 3 topolino 0
>> ---------------------------
>>
BN> The logfile shows that Access is using Manual Commit. The last two lines show a separate connection
BN> being made and then a select statement on "operatori" table. But it is still locked from the other
BN> connection. (see below)
BN> I don't think there is anything the driver can do about this. You need Vladim's new locking code! I
BN> think that is going to be in the next version of Postgres.
BN> Byron
BN> <Highlights from the logfile>
BN> BEGIN
BN> UPDATE "operatori" SET "cap"='1' WHERE "codice" = '1 '
BN> SELECT "codice","cap" FROM "operatori" WHERE "codice" = '3 '
BN> UPDATE "operatori" SET "cap"='1' WHERE "codice" = '3 '
BN> SELECT "codice","cap" FROM "operatori" WHERE "codice" = '2 '
BN> UPDATE "operatori" SET "cap"='1' WHERE "codice" = '2 '
BN> <Another connection is created here>
BN> SQLDriverConnect(out)='DSN=PostgreSQL;DATABASE=hygea;SERVER=verde;PORT=5432;UID=marco;PWD=;READONLY=0;PROTOCOL=6.4;FAKEOIDINDEX=0;SHOWOIDCOLUMN=0;ROWVERSIONING=0;SHOWSYSTEMTABLES=0;CONNSETTINGS=set+ksqo+to+%27on%27%3b'
BN> <This one hangs it>
BN> SELECT "operatori"."codice" FROM "operatori"
Thank you for reply Byron.
I hope that v6.5 may solve my problem.
-Jose'-
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To: pgsql-interfaces@postgresql.org
Cc: sferac@bo.nettuno.it, byronn@insightdist.com
Subject: Re: Re[2]: [INTERFACES] PSQLODBC and TRANSACTIONS
In-Reply-To: <18614.990113@bo.nettuno.it>
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