new PMC: Chao Wang

Hi, The Project Management Committee (PMC) for Apache IoTDB has invited Chao Wang to become a PMC and we are pleased to announce that he has accepted. Welcome, Chao Wang! Yours, The Apache IoTDB PMC

Quarterly report of IoTDB

Hi all, The following is the quarterly report, please have a review. (Due to tomorrow is the DDL, I have to submit tonight... can not wait for 3 days :(. ) ## Description: The mission of Apache IoTDB is the creation and maintenance of software related to an IoT native database with high performan