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csv-serde下载地址：http://ogrodnek.github.io/csv-serde/
用法：
add jar path/to/csv-serde.jar;
create table my_table(a string, b string, ...)
row format serde 'com.bizo.hive.serde.csv.CSVSerde'
stored as textfile; 自定义分隔符：
add jar path/to/csv-serde.jar;
create table my_table(a string, b string, ...)
row format serde 'com.bizo.hive.serde.csv.CSVSerde'
with serdeproperties (
"separatorChar" = "\t",
"quoteChar" = "'",
"escapeChar" = "\\"
)
stored as textfile;