[infinispan-issues] [JBoss JIRA] (ISPN-7292) SQL Server Upsert Errors

[Ryan Emerson (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-7292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Emerson updated ISPN-7292:
-------------------------------
              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/4737


> SQL Server Upsert Errors
> ------------------------
>
>                 Key: ISPN-7292
>                 URL: https://issues.jboss.org/browse/ISPN-7292
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Loaders and Stores
>    Affects Versions: 9.0.0.Beta1
>            Reporter: Ryan Emerson
>            Assignee: Ryan Emerson
>
> When utilising upserts with SQL server an SQL exception is thrown due to a `ambiguous column name`. 
> The existing upstert statement also causes concurrency issues as SQL server does not handle MERGE statements atomically. Consequently it is necessary for a table lock to be acquired per merge statement in order to prevent deadlocks from occurring. See [here|https://www.mssqltips.com/sqlservertip/3074/use-caution-with-sql-servers-merge-statement/] for more details.



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