Thanks for the input, I'll look more into that. Does your answer then imply that Joins and Aggs do not inherently always use prefix seeks? I'd imagine that the join key on join and groupby key on aggs would always be used as prefix keys. Is this not the case?
Also, is there good information on what the correct prefix extractor is for Flink? This feature is something I only just discovered so I was hoping to gain clarity. Thanks On Mon, Mar 15, 2021 at 8:33 PM Yun Tang <myas...@live.com> wrote: > Hi Rex, > > You could configure prefix seek via RocksDB's column family options [1]. > Be careful to use correct prefix extractor. > > > [1] > https://ci.apache.org/projects/flink/flink-docs-stable/ops/state/state_backends.html#passing-options-factory-to-rocksdb > > > Best > > > ------------------------------ > *From:* Rex Fenley <r...@remind101.com> > *Sent:* Tuesday, March 16, 2021 8:29 > *To:* user <user@flink.apache.org> > *Cc:* Brad Davis <brad.da...@remind101.com> > *Subject:* Prefix Seek RocksDB > > Hello! > > I'm wondering if Flink RocksDB state backend is pre-configured to have > Prefix Seeks enabled, such as for Joins and Aggs on the TableAPI [1]? If > not, what's the easiest way to configure this? I'd imagine this would be > beneficial. > > Thanks! > > [1] https://github.com/facebook/rocksdb/wiki/Prefix-Seek > > -- > > Rex Fenley | Software Engineer - Mobile and Backend > > > Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/> | > FOLLOW US <https://twitter.com/remindhq> | LIKE US > <https://www.facebook.com/remindhq> > -- Rex Fenley | Software Engineer - Mobile and Backend Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/> | FOLLOW US <https://twitter.com/remindhq> | LIKE US <https://www.facebook.com/remindhq>
