install mysql-5.7.21-solaris11-sparc-64bit.pkg.gz on solaris 11.3

[Cecilia Laura]

Hi allo,
When I tried to install mysql-5.7.21-solaris11-sparc-64bit.pkg.gz on solaris 11.3 SRU33, the installation was interrupted with this message:

Processing package instance <mysql> from </software/mysql-5.7.21-solaris11-sparc-64bit.pkg>

MySQL Community Server (GPL)(sparc) 5.7.21

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Use is subject to license terms.
## Executing checkinstall script.
bash executable is required for mysql installation
Please install package SUNWbash providing bash
pkgadd: ERROR: checkinstall script did not complete successfully

Installation of <mysql> failed.
No changes were made to the system.


pkg install system/library/studio-runtime ok
shell/bash 4.4.19.19-0.175.3.33.0.1.0 i--


Thanks a lot