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.
Ruby as birthstone for July is not just regular stone that randomly chosen and considered as the certain stone for certain person. It has been known since the ancient time. People from the ancient time, choose the several kind of stone and consider those stones to be the symbol of the person.