问题
Q: How can I diagnose and correct problems with the Query tool connection.
Using pgAdmin4 1.0-rc1 to connect to a local host "PostgreSQL 9.5.3, compiled by Visual C++ build 18..."
I can connect and drill down to my schema. I use the context menu to select 'Query tool'. The editor shows the correct database@host:port in the editor header bar.
When I execute a simple query, or any query select 1 as first;
I get the message "Not conencted to the server or the connection to the server has been closed.
instead of the expected results.
The editor alwa
回答1:
This issue has been resolved now, Upgrade pgAdmin4 to version 1.3. https://www.pgadmin.org/download/
回答2:
All you have to do is wrap the schema, table, column names with double quotation marks in every sentence.
来源：https://stackoverflow.com/questions/39325567/pgadmin4-query-tool-always-comes-back-not-connected