有张聚合表
CREATE TABLE IF NOT EXISTS test
(
v_1 VARCHAR(150) NOT NULL,
v_2 VARCHAR(20) REPLACE NULL DEFAULT "0",
cnt BIGINT SUM DEFAULT "0",
max_dwell_time INT MAX DEFAULT "0",
min_dwell_time INT MIN DEFAULT "99999"
)
AGGREGATE KEY(v_1)
DISTRIBUTED BY HASH(v_1) BUCKETS AUTO
PROPERTIES (
"replication_allocation" = "tag.location.default: 1"
);
想对以下查询
select v_2 from test group by v_2;
创建物化视图