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.
Characteristics Of The June Birthstone. Color. Pearls have a beautiful natural luster and its translucence make it one of the most favored gems. Pearls occur in a variety of colors which depend on the type of clam or oyster that produced it as well as the environment it was produced in.