CREATE FOREIGN TABLE文
CREATE FOREIGN TABLE riverflow_parquet
USING ( LOCATION ('/s3/td-usgs-public.s3.amazonaws.com/PARQUETDATA/') );
SHOW TABLE文
次を実行します。
SHOW TABLE riverflow_parquet;
結果:
CREATE MULTISET FOREIGN TABLE NOS_USR.riverflow_parquet ,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;