The relationship between Ursa major and the Big Dipper

In Greek mythology, Caristo, a beautiful fairy who was envied by Hera. Zeus turned her into a bear to protect her. Which constellation does it refer to?

Ursa major. There is a goddess named Caristo. She is gentle and beautiful. Zeus likes her very much. After many pursuits, she gave birth to a son named Arcaz. The jealous queen Hera flew into a rage when she learned this, and turned karis into a big bear and rushed into the forest. Arcaz, who lost his mother when he was a child, became a very good hunter when he grew up, but he didn't know what happened to his mother. One day, Hera asked Axe to meet his mother bear in the forest. When her mother saw her son who had been missing for many years, she was so excited that she forgot that she had become a big bear that she couldn't help rushing to arcas. Arcaz thought the bear was going to hurt him, so he immediately raised an arrow to shoot it. Just when the mistake of killing his mother was about to be caused, Zeus broke through the knot of guilt and timidity, turned Arcaz into a bear and put it in the sky, so that their mother and son could be together forever. But the story didn't end, and the queen still didn't stop. With the help of the gods, she drove the big bear and the little bear near the North Pole, forcing them to revolve around the North Pole day and night, and there was never a moment of peace, while other constellations in the sky could sink to the bottom of the sea for half a day.