Current database reverts to startup database after a short time passes

[julielerman]

sql-cli version 0.61 (current)
OS: macOS El Capitan 10.11.6
and Windows 10 x64

Steps to reproduce
startup mssql without specifying a database
use a different database
run .tables
run some queries
do nothing for about a minute
re-run the last query
You'll get Error: Invalid object name [whatever table is in the query]
It has reverted to master

quit out of sql-cli
startup again this time specify a database that is NOT master
(I have one called juliedb, so: mssql -s server -p password -d juliedb
run .tables, I see the correct tables
use master
run .tables
I see master's tables
query one of those tables
do nothing for about a minute
re-run last query
you'll get ERROR: Invalid object again
run .tables
you'll see that it is now using the original database again ...in my case, juliedb

This has been reproduced by others:
microsoft/mssql-docker#86

Thanks.
Also LOVE sql-cli . Great UX

[mysticmind]

I have observed this issue as well. Env: Ubuntu 16.04.

That said, I also love sql-cli, great tool!

[hasankhan]

I should probably issue a no-op query periodically to keep the connection alive

WAITFOR DELAY '0:0';