Skip to main content

Documentation Index

Fetch the complete documentation index at: https://private-7c7dfe99-page-updates.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

Description

This table contains a single row with a single dummy UInt8 column containing the value 0. This table is used if a SELECT query does not specify the FROM clause. This is similar to the DUAL table found in other DBMSs.

Columns

Example

SELECT * FROM system.one LIMIT 10;
┌─dummy─┐
│     0 │
└───────┘

1 rows in set. Elapsed: 0.001 sec.