zypper install specific major version without specifying the minor version

I am writing a script that installs some packages and does some configuration work. I want the script to install a specific major version of a package, but I do not care which minor version of the package it is. More to the point, I want it to install the latest 2.y.z release of the package, but not 1.y.z or 3.y.z (or any other major version number). I have tried (without success) - zypper install 'mypackage=2' - `zypper install 'mypackage>11' 'mypackage=2.0.0' 'mypackage 'mypackage>=2.0.0' not found in package names. Trying capabilities. No > provider of 'mypackage >= 2.0.0' found. However, after that message, it still proceeds with installing mypackage-1.5.0, because that satisfies the second package-edition specified.