olap skills

chdb-io/chdb

Skill Claude CodeCodex

Use when the user has tabular data (pandas DataFrame, parquet, csv, Arrow, json) and wants to filter, group, aggregate, join, or speed up slow pandas. Provides chDB DataStore — same pandas API, ClickHouse engine underneath. Also handles reading from S3, MySQL, PostgreSQL, MongoDB, ClickHouse Cloud, Iceberg, Delta Lake…

Koukyosyumei/h5i-db

Skill Claude CodeCodex

Use when working with an h5i-db database — an embedded, versioned time-series database and event-driven backtesting engine for quant research, driven by the h5i-db CLI or the h5idb Python package. Covers creating a database and loading Parquet or CSV tick data, orienting in an existing one, querying it (SQL, ASOF…