CREATE FOREIGN TABLE文
CREATE FOREIGN TABLE ParquetTab1 (
Location VARCHAR(2048) CHARACTER SET UNICODE CASESPECIFIC,
GageHeight2 FLOAT,
Flow FLOAT,
site_no BIGINT,
datetime VARCHAR(16) CHARACTER SET UNICODE NOT CASESPECIFIC,
Precipitation FLOAT,
GageHeight FLOAT
)
USING (LOCATION ('/s3/td-usgs-public.s3.amazonaws.com/PARQUETDATA/'));
SHOW TABLE文
SHOW TABLE ParquetTab1;
CREATE MULTISET FOREIGN TABLE ParquetTab1 ,FALLBACK ,
MAP = TD_MAP1
(
Location VARCHAR(2048) CHARACTER SET UNICODE CASESPECIFIC,
GageHeight2 FLOAT,
Flow FLOAT,
site_no BIGINT,
datetime VARCHAR(16) CHARACTER SET UNICODE NOT CASESPECIFIC,
Precipitation FLOAT,
GageHeight FLOAT)
USING
(
LOCATION ('/s3/td-usgs-public.s3.amazonaws.com/PARQUETDATA/')
MANIFEST ('FALSE')
PATHPATTERN ('$var1/$var2/$var3/$var4/$var5')
STOREDAS ('PARQUET')
)
NO PRIMARY INDEX
PARTITION BY COLUMN ADD 65525;