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Coordinator DB
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Use native client commands and connection options ​

The supplied native client provides interactive SQL, history and completion. Its documented options select the address, identity, database and query. A custom prompt-format option is not part of the public command-line contract.

sh
./coordinator client --addr 127.0.0.1:7400 --database data

Confirm the connection explicitly ​

Use a distinct terminal title or your terminal application's labeling when several environments are open. Keep the chosen address and database visible in your own session notes. Do not assume that changing a shell prompt changes the database selected by an already running SQL connection.

In the interactive client, help lists commands and .quit exits. Up and Down recall history, and Tab completes keywords, databases, tables and columns. A final SQL semicolon is optional for complete input. Incomplete quotes and trigger bodies continue onto another line.

Keep automation separate ​

Use --query for a scripted request that writes only exact result bytes to stdout. Piped SQL does not read or write interactive history. For secrets, the password can come from COORDINATOR_PASSWORD; avoid placing real credentials in shared command examples or terminal screenshots.

See native client, command-line syntax and USE.