CREATE TABLE AS SELECT
描述: 可以快速复制已有数据表,并产出不同格式的数据表
语法:
CREATE TABLE new_table_name ROW FORMAT SERDE 'SERDE type' LOCATION 'ufile://......' AS SELECT * FROM original_table_name
支持的SERDE:
JOSN_OPENX SERDE:"org.openx.data.jsonserde.JsonSerDe"
JOSN_HIVE SERDE:"org.apache.hive.hcatalog.data.JsonSerDe"
ORC_HIVE SERDE:"org.apache.hadoop.hive.ql.io.orc.OrcSerde"
TSV_LAZY SERDE:"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe"
CSV_OPEN SERDE:"org.apache.hadoop.hive.serde2.OpenCSVSerde"