MySQL Bugs: #99266: SQL USE command with backticks fails if there was no default database selected

Bug #99266	SQL USE command with backticks fails if there was no default database selected
Submitted:	15 Apr 2020 12:47	Modified:	15 Apr 2020 14:16
Reporter:	Hontvari Jozsef Levente	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Command-line Clients	Severity:	S3 (Non-critical)
Version:	5.6/5.7/8.0	OS:	Ubuntu (16.04.6 LTS)
Assigned to:		CPU Architecture:	x86
Tags:	Use

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Description:
If the mysql client is started without current database, then issuing a 

USE `something` 

statement fails with 

ERROR 1046 (3D000): No database selected

error message.

Repeating the same command without backicks works. Repeating the same command also works if there is default database selected (e.g. starting mysql client with "mysql somedb"

How to repeat:
mysql --database=

mysql> USE `mysql`;
ERROR 1046 (3D000): No database selected

# just for testing
mysql> use game
Database changed

Thank you for the bug report.