September 2026

September 16–30

ClickHouse catalogs — query ClickHouse through clickhouse_query() and join the result with your other catalogs; its tables appear on the Tables page. Setup
Cached results — running the same SELECT again can return the earlier result instantly, marked From cache in Studio and Query History.
JDBC driver on Maven Central — add it as a normal dependency instead of downloading a jar. JDBC driver
Bulk results for pandas and Polars — fetch_result_url and fetch_dataframe in the Python package load a full result straight from its stored file. Python & SQLAlchemy

Full Parquet exports over MCP — an assistant's export links to the whole stored result. Tools
Query History on a phone — the filters open as an overlay and the summary tiles fit the screen.

PARTITIONED BY in CREATE TABLE, and ALTER TABLE … SET PARTITIONED BY, on Iceberg tables in Glue were dropped or refused.

Column meanings — Thunderduck infers what each column means, you confirm or correct it on the Tables page, and Studio shows it when you hover a column. AI assistants see the same meanings. Column meanings
Roles — admins create roles, add people to them and grant each role read or write access per catalog. Every query path follows the same grants. Access control
Excel files — read .xlsx files from your storage catalogs with read_xlsx. Reading files
Catalog descriptions — an optional description for each catalog, shown on the Catalogs page, on hover in Studio, and to AI assistants.
Documentation site — these docs.

Execution steps in Studio — a running query shows each step of its execution with a live stopwatch, and a submitted query shows as queued until it is planned.
Tables page — search and pagination, a larger table detail view, and STRUCT columns that expand to show their fields.
Admin-only settings — creating, editing and deleting catalogs and environment variables needs a company admin.
Claude and ChatGPT tools — every MCP tool has a readable title, and four ready-made skills ship with the server. Connecting Claude & ChatGPT

One catalog with a broken credential could empty the whole Tables page.
A query that failed before planning showed a guessed error instead of the real one.