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https://issues.apache.org/jira/browse/OAK-8908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Reschke updated OAK-8908:
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Summary: RDBBlobStore on SQL Server: bad performance when default collation
is of type SQL* (was: RDB*Store on SQL Server: bad performance when default
collation is of type SQL*)
> RDBBlobStore on SQL Server: bad performance when default collation is of type
> SQL*
> ----------------------------------------------------------------------------------
>
> Key: OAK-8908
> URL: https://issues.apache.org/jira/browse/OAK-8908
> Project: Jackrabbit Oak
> Issue Type: Technical task
> Components: rdbmk
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Priority: Major
> Fix For: 1.26.0
>
> Attachments: OAK-8908-1.6.diff, OAK-8908.diff
>
>
> RDBBlobStore uses a 64-char primary key (digest in hex).
> Unfortunately, this causes performance issues on MS SQL Server, when the
> collation for that column is of type "SQL*" (see links). These types of
> collations are deprecated, but still the default for installations on the
> "EN_US" locale.
> The performance loss can be observed by changing the collation on an existing
> install, and then enable performance logging on RDBBlobStore.
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