複雜型別
ARRAY
CREATE TABLE array_data_type(
c_array array<string>)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '&';
用資料建立 data.csv
:
arr1&arr2
arr2&arr4
將 data.csv
放入/tmp
folde 並在 Hive 中載入此資料
LOAD DATA LOCAL INPATH '/tmp/data.csv' INTO TABLE array_data_type;
或者你可以把這個 CSV 放在 HDFS 中,在/tmp
說。使用 HDFS 從 CSV 載入資料
LOAD DATA INPATH '/tmp/data.csv' INTO TABLE array_data_type;
地圖
CREATE TABLE map_data_type(
c_map map<int,string>)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '&'
MAP KEYS TERMINATED BY '#';
data.csv
檔案:
101#map1&102#map2
103#map3&104#map4
將資料載入到配置單元:
LOAD DATA LOCAL INPATH '/tmp/data.csv' INTO TABLE map_data_type;
STRUCT
CREATE TABLE struct_data_type(
c_struct struct<c1:smallint,c2:varchar(30)>)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '&';
data.csv
檔案:
101&struct1
102&struct2
將資料載入到配置單元:
LOAD DATA LOCAL INPATH '/tmp/data.csv' INTO TABLE struct_data_type;
UNIONTYPE
CREATE TABLE uniontype_data_type(
c_uniontype uniontype<int, double, array<string>)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '&';
data.csv
檔案:
0&10
1&10.23
2&arr1&arr2
將資料載入到配置單元:
LOAD DATA LOCAL INPATH '/tmp/data.csv' INTO TABLE uniontype_data_type;