SQL queries in the management console
Managed Service for PostgreSQL allows you to visualize the data structure in your PostgreSQL cluster and send SQL queries to databases from the Yandex.Cloud management console. To do this, log in to the management console, open the cluster page and go to the SQL tab.
See a reference list of supported queries in the PostgreSQL documentation.
Every time you open the SQL tab, you must enter the username and password of the cluster user. This opens the cluster data structure and the SQL query input window.
To avoid entering the password too often, open this page of the management console in a new tab.
Data structure visualization
Once you have logged in, you can see the structure of the databases and tables in the cluster:
Click on the table to see the first 1000 rows of the
SELECT * query result for this table, 20 rows per page (Managed Service for PostgreSQL doesn't support full navigation through all the DB data). In the Query result offset field, you can set the offset for showing the results table.
Hover over the column header to see the type of column data:
The query input window is open on the right. Start typing your query to see suggested keyword options:
Enter your query and click Execute. The results table or error message is shown in the results panel that is under the editor control buttons.
Query restrictions in the management console
- If you close or reload the page, the query text and its results are lost. In this case, each request that you run from the management console is executed regardless of the browser state.
- The management console outputs only the first 1000 rows of the result.
- If a cluster query takes more than 10 minutes, the management console reports an error instead of printing the result, even if the query eventually finishes processing.
- If your cluster has multiple PostgreSQL hosts, queries from the management console are sent to the current master host.
- A table list is taken from the public schema. Queries with tables from other schemas are made by explicitly specifying a schema, for example:
SELECT * from information_schema.column_udt_usage.