Mariadb has a columnar engine already (though I did not use it myself) https://mariadb.com/docs/analytics/mariadb-columnstore/colum... and is mostly mysql compatible.

For about a year releases include a vector storage type, so it will be interesting to see it compared in performance with what Alibaba did.

Just wanted to plug that out. Given how often Postgres is plugged on HN, I think people ignore how versatile mariadb is.

This ColumnStore is very simple and just do table scans sequentially on every query. It doesn't support indexes and unique constraints. It is almost an append-only serialization file format, but with some columnar concepts.

MariaDB also has MariaDB Exa, which is a real HTAP solution using Exasol for the analytical workloads: https://mariadb.com/products/exa/

Also info here: https://www.exasol.com/use-cases/mariadb-exa/

Clickhouse supports MySQL protocol natively, and can also wrap/import MySQL tables. Okay so you need two connections but it works pretty well.

It even supported running as a MySQL Replica at some point.

"MaterializedMySQL"

Sadly that feature seems to have been thrown out, probably due to complexity.

https://github.com/ClickHouse/ClickHouse/discussions/44887#d...

https://www.percona.com/blog/complete-walkthrough-mysql-to-c...

https://github.com/ClickHouse/ClickHouse/pull/73879

Mostly due to support, at least on the PG side.

They bought peerdb and offer it as clickhouse pipes so I suspect the incentive to support that feature is pretty low

Can tiger data be used just as a simple column store?

All I want is effectively what clickhouse does in PG. I have a single table that I need fast counts on and clickhouse can do the counts fast but I have to go through the entire sync/replication to do that.

A quick scan of TimeSeries always seemed like it was really only best setup for that and to use it another way would be a bit of a struggle.

in a way -- materialized views --

but Tiger Data is more optimized for TimeSeries data - https://www.tigerdata.com/docs/use-timescale/latest/hypercor...

I do wish too there was an embedded click house like db in Postgres

One option is TiDB. It has support for columnar data alongside row based data. However, it is MySQL compatible, but not based on MySQL code so not quite what you asked for.

Yes, TiDB has columnar data and also Vector support. All open source and MySQL compatible.

MariaDB has supported columnar tables for a bit https://mariadb.com/resources/blog/see-columnar-storage-for-...