Weâd like to introduce a new columnar storage format for Hadoop called Parquet, which started as a joint project between Twitter and Cloudera engineers.
There are two birthstones for the month of June. Alexandrite was the traditional birthstone for June, but due to its scarcity and cost, pearl has become June's common birthstone. The alexandrite was named after Czar Alexander II and is one of the most desired gems. Its color changes with the lighting surrounding the stone, which is called its phenomena.
Amethyst Natural Birthstone. Amethyst is one of the natural birthstones of those born as the old year wanes and the new is about to arrive at the winter solstice (November 21 - December 20). Amethyst crystals bring you creativity, perception, self knowledge, and insight. Amethyst - Zodiac Stone of Pisces