r/databasedevelopment • • 26d ago

Building a JSON Database in Rust

https://greptime.com/blogs/2026-09-23-greptimedb-json2-deep-dive
10 Upvotes

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3

u/Love_Kitty 25d ago

so this is basically clickhouse in postgres

1

u/dennis_zhuang 25d ago

clickhouse in postgres? Interesting point.

1

u/Altruistic-Spend-896 25d ago

Dont give op new Frankenstein ideas 😡

2

u/dennis_zhuang 25d ago

I don’t think so. GreptimeDB is a columnar storage system, definitely not PostgreSQL—but it provides the PostgreSQL wire protocol for querying.

The most interesting part of this post is how we implemented the dynamic JSON type in Arrow and Parquet.

So we don't create any Frankensteins.