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 second historical birthstone, ruby, needs little introduction. One of the traditional four precious stones, ruby, has long been popular as a gem. While ruby was the traditional December birthstone, it is currently the modern birthstone for July. A variety of corundum, ruby and sapphire are from the same family. In the United States, there is a distinction between pink sapphire and ruby.