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.
The gemstone Amethyst is the Birthstone for February. It is also the Zodiac stone for the constellation of Pisces. Amethyst is associated with spirituality, wisdom, sobriety, and security. Often, cut gems of amethyst are graded using the terms: Siberian, Uruguayan or Bahain to represent high medium and low grade respectively, regardless of the actual source.