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.
Citrine, derived from the French word for lemon, in all of its glorious golden and yellow colors, is the most affordable of all the earth-toned gemstones and is the alternate birthstone for November. Ametrine is as affordable as regular amethyst or citrine, and you can have both gemstones for the price of one.