1.准备数据
1.1 clickhouse建表并插入数据
CREATE TABLE cell_towers_10
(
radio Enum8('' = 0, 'CDMA' = 1, 'GSM' = 2, 'LTE' = 3, 'NR' = 4, 'UMTS' = 5),
mcc UInt16,
net UInt16,
area UInt16,
cell UInt64,
unit Int16,
lon Float64,
lat Float64,
range UInt32,
samples UInt32,
changeable UInt8,
created DateTime,
updated DateTime,
averageSignal UInt8
)
ENGINE = MergeTree ORDER BY (radio, mcc, net, created);
INSERT INTO datasets.cell_towers_10 (radio,mcc,net,area,cell,unit,lon,lat