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Re: Using ON_ERROR_ROLLBACK functionality in JDBC
- From: Kris Jurka <books(at)ejurka(dot)com>
- To: Mark Lewis <mark(dot)lewis(at)mir3(dot)com>
- Cc: "Koth, Christian \(DWBI\)" <Christian(dot)Koth(at)smiths-heimann(dot)com>, pgsql-jdbc(at)postgresql(dot)org
- Subject: Re: Using ON_ERROR_ROLLBACK functionality in JDBC
- Date: Fri, 28 Jul 2006 11:23:56 -0500 (EST)
On Fri, 28 Jul 2006, Mark Lewis wrote:
Does the current savepoint implementation in the driver require a separate round-trip?
Yes. Creating, rolling back to, or releasing a savepoint each currently make a server round-trip. If you're suggesting queueing these up so that it sends these with queries instead of alone, I think that's something the driver could do if it was creating savepoints itself, but would be tougher to do for user savepoints. For user savepoints I think you need to get feedback to the caller immediately upon command execution rather than with a later query. Consider something like trying to release an invalid savepoint. You need to tell the user immediately.
Kris Jurka
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- Using ON_ERROR_ROLLBACK functionality in JDBC
- From: Koth, Christian (DWBI)
- Re: Using ON_ERROR_ROLLBACK functionality in JDBC
- From: Kris Jurka
- Re: Using ON_ERROR_ROLLBACK functionality in JDBC
- From: Mark Lewis
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