alter table ailpha_security_alarm_data ON CLUSTER clickhouse_cluster add column srcexpose;
2.删除字段
alter table ailpha_security_alarm_data ON CLUSTER clickhouse_cluster drop column srcexpose;
二. 通用操作
1. 导入数据
clickhouse-client -h 1.clickhouse1 -d securityAlarm -q " insert into ailpha_security_alarm FORMAT CSVWithNames" --format_csv_delimiter='|' < /data/surface_ip.csv
2. 导出数据
clickhouse-client -d securityAlarm -q "select * from ailpha_security_alarm where endTime between '2024-01-17 13:30:00' and '2024-01-17 14:00:00' FORMAT CSVWithNames " --format_csv_delimiter='|' > /data/zhangjie/20240117133000-1400ck.csv