County Court did not abuse its discretion in denying the motion of defendant to withdraw his guilty plea ( see, CPL 220.60; People v. Hamilton, 192 A.D.2d 738, 740), which was entered at trial while the jury was deliberating. "The record reveals that the plea was knowing and voluntary and was made without protestation of innocence" (People v. Collins, 186 A.D.2d 298). We reject the contention of defendant that he was deprived of effective assistance of counsel on his motion to withdraw the plea.