пт, 31 авг. 2018 г. в 16:35, Mate Varga <m...@matevarga.net>:
>
> Hi,
>
> we're fetching binary data from pg_largeobject table. The data is not very
> large, but we ended up storing it there. If I'm copying the data to a file
> from the psql console, then it takes X time (e.g. a second), fetching it
> through the JDBC driver takes at least 10x more. We don't see this difference
> between JDBC and 'native' performance for anything except largeobjects (and
> bytea columns, for the record).
>
> Does anyone have any advice about whether this can be tuned or what the cause
> is?
I don't know what a reason of that, but I think it's reasonable and
quite simple to call lo_import()/lo_export() via JNI.
