You are keying on the wrong word. They are an overgrown minnow that kinda looks like a pike. Not a pike that looks like a minnow wink

"Nothern Pike Minnow". Google it and see if it matches what you caught.

It should have a sort of large flat head and more of a duck bill toothless mouth (not a sucker mouth). It would have a forked tail and large scales.

A big clue also would be the sqeaking and gurgling sounds the nasty thing made when you tried to get the hook out...

A white fish on the other hand will look similar, but the mouth will be turned down and quite a bit smaller. Whities and Squaw fish are NOT the same thing...