I have recently started working on Kusto, I am struggling to find out how we can add unique constraint in any kusto table as I used to do in Mysql.
Suppose I have created a table in kusto.
.create table Mytable( Time:datetime, NoOfOperations: long);
If it was a sql table, I can easily define to add a unique key, I am unable to find out something k like this in kusto. Tried searching on kusto documents but couldn't find.
ALTER TABLE MyTable
ADD UNIQUE (Time);
Any help is highly appreciated..
In Kusto, tables don't have the traditional primary/unique keys. To create a new table with unique Time
values from the table MyTable
, you could try the following:
.make-unique Mytable
| where Time != ""
| project Time
or you could use the summarize
operator to group the data by Time and retrieve the first value:
. summarize arg_min(Time, *) by Time
| project Time
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.