PrestoDB

Category

Data warehouses

Runs in

The Phloem cloud — nothing to install

Lets you and Hamming query the PrestoDB catalogs you pick with SQL, with their tables listed in Trace.

#What Phloem reads

• Schemas, tables and columns in each catalog you pick, listed in Trace for Hamming and SQL autocomplete
• information_schema is left out

#What you need

• The coordinator's hostname and HTTP port (default 8080), reachable from Phloem
• Whether it serves HTTP or HTTPS

#Connect

1. In the console, open Connectors, choose Add connector, then PrestoDB.
2. Enter Host and Port, choose Connection Security (HTTP (insecure) or HTTPS (secure)), then Continue.
3. On Select Catalogs, pick the catalogs to connect.
4. Choose Test Connection. Then, on Save Connection, name the connector and save it.

#What Hamming can do

• Run SQL that you or Hamming write. A table name without a catalog uses the first catalog you picked.

#Notes

• Phloem runs any statement, not only SELECT. Limit what the coordinator lets this connection do to keep it read-only.

#Connection fields

What the Add connector form asks for.

Updated November 6, 2026