Re: [HACKERS] Statement-level rollback
От | Tsunakawa, Takayuki |
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Тема | Re: [HACKERS] Statement-level rollback |
Дата | |
Msg-id | 0A3221C70F24FB45833433255569204D1F6AAF8A@G01JPEXMBYT05 обсуждение исходный текст |
Ответ на | Re: [HACKERS] Statement-level rollback (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>) |
Ответы |
Re: [HACKERS] Statement-level rollback
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Список | pgsql-hackers |
From: pgsql-hackers-owner@postgresql.org > [mailto:pgsql-hackers-owner@postgresql.org] On Behalf Of Peter Eisentraut > On 2/28/17 02:39, Tsunakawa, Takayuki wrote: > > I'd like to propose statement-level rollback feature. To repeat myself, > this is requested for users to migrate from other DBMSs to PostgreSQL. They > expect that a failure of one SQL statement should not abort the entire > transaction and their apps (client programs and stored procedures) can > continue the transaction with a different SQL statement. > > Can you provide some references on how other systems provide this feature? Oracle doesn't. SQL Server provides like this: SET XACT_ABORT https://msdn.microsoft.com/en-us/library/ms188792.aspx MySQL doesn't. BTW, MySQL enables changing autocommit mode with SET statement: 16.5.2.2 autocommit, Commit, and Rollback https://dev.mysql.com/doc/refman/8.0/en/innodb-autocommit-commit-rollback.html And above all, I've found EnterpriseDB supports statement-level rollback with GUC! So PostgreSQL should be able to do. https://www.edbpostgres.com/docs/en/9.6/asguide/EDB_Postgres_Advanced_Server_Guide.1.17.html#pID0E0QUD0HA ---------------------------------------- edb_stmt_level_tx is set to TRUE, then an exception will not automatically roll back prior uncommitted database updates.If edb_stmt_level_tx is set to FALSE, then an exception will roll back uncommitted database updates. Note: Use edb_stmt_level_tx set to TRUE only when absolutely necessary, as this may cause a negative performance impact. ---------------------------------------- Regards Takayuki Tsunakawa
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