我是Apache Drill的新手。
出于性能测试的目的，我正在尝试测量执行查询的时间。而且我也不需要打印已执行的结果。
在Oracle SQL Plus中，有[{
"categoryImage": "https://www.winni.in/assets/img/app/city-home/cake.jpg",
"categoryName": "cakes",
"categoryId": 4
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/flowers.jpg",
"categoryName": "flowers-and-bouquets",
"categoryId": 12
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/chocolates.jpg",
"categoryName": "chocolates-for-all",
"categoryId": 63
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/mugs.jpg",
"categoryName": "Mugs",
"categoryId": 34
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/figurines.jpg",
"categoryName": "figurines",
"categoryId": 84
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/giftframes.jpg",
"categoryName": "gift-and-photo-frames",
"categoryId": 106
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/greetingcards.jpg",
"categoryName": "greeting-cards",
"categoryId": 103
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/handicrafts.jpg",
"categoryName": "handicrafts",
"categoryId": 44
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/penstands.jpg",
"categoryName": "pen-stands",
"categoryId": 142
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/combos.jpg",
"categoryName": "gift-combos",
"categoryId": 99
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/softtoys.jpg",
"categoryName": "soft-toys",
"categoryId": 104
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/diecasttoys.jpg",
"categoryName": "diecast-toys",
"categoryId": 138
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/jewellery.jpg",
"categoryName": "jewellery",
"categoryId": 41
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/clocks.jpg",
"categoryName": "clocks",
"categoryId": 137
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/crystalgifts.jpg",
"categoryName": "crystal gifts",
"categoryId": 136
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/lamps.jpg",
"categoryName": "lamps",
"categoryId": 97
}, {
"categoryImage": "https://www.winni.in/assets/img/app/city-home/slambook.jpg",
"categoryName": "slambook",
"categoryId": 139
}]
。此设置功能如下（引自oracle web site）：
与SET AUTOTRACE ON类似，但禁止打印用户的查询输出（如果有）。如果启用了STATISTICS，则仍会提取查询数据，但不会打印。
在Apache Drill的sqlline中，我收到如下错误：set autotrace traceonly
您对替代品有什么想法吗？
谢谢，
P.S。
我也读过这个回答的问题。 Any command in mysql equivalent to Oracle's autotrace for performance turning 不幸的是，它不适用于Apache Drill。
答案 0 :(得分：1)
您可以将查询放在文本文件（例如query.sql）中，然后运行sqlline并将输出转发到/ dev / null：
bin/sqlline -u jdbc:drill:zk=localhost:2181 -f query.sql > /dev/null
它仍会显示一些数据，但只显示最小值：
1/1 select * from cp.`employee.json`;
1,155 rows selected (0.65 seconds)
Closing: org.apache.drill.jdbc.impl.DrillConnectionImpl
apache drill 1.4.0
"say hello to my little drill"