Re: [google-cloud-sql-discuss] Postgres extension request: postgresql-hll

Hi Abe,

Thank you for your feedback!

It does not seems like this extension supports PostgreSQL 9.4 or older, and it does not seems like it's actively maintained.

We only provide 9.6 currently, so it is not likely that we'll be able to add this extension soon.

The good news is that it's licensed under Apache2, so these problems are fixable.

If anybody else would like to use this extension please let us know. It will help us prioritize.

Short-term, I'd recommend to continue using Redis.

Thank you!

--
Vladimir Rusinov
PostgreSQL SRE, Google Ireland

Google Ireland Ltd.,Gordon House, Barrow Street, Dublin 4, Ireland
Registered in Dublin, Ireland
Registration Number: 368047

On Sun, Mar 26, 2017 at 11:56 PM, Abe Voelker <abe@abevoelker.com> wrote:

This extension adds support for a HyperLogLog data structure - useful for counting distinct values while using a reasonable amount of space: https://github.com/aggregateknowledge/postgresql-hll

In the meantime a Redis instance tuned for persistence can be used instead, as Redis natively supports HyperLogLog. But I would like to get rid of the additional dependency if possible.

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