Azure Data Explorer

  1. Allow creation of Tables & Data Maps in ARM template

    It doesn't make much sense that ARM template deploy of AzDEx allows for creation of Clusters, Databases, and DataConnections when DataConnections expliclity depend on a Table and DataMap to exist. In fact the error message is simply "Bad Input" with an "Internal Server Error" if somebody mistakenly tries to do this..

    DEx should be able to be fully-configurable via ARM including Tables and Datamaps so the existing capability of creating DataConnections via ARM is able to actually be used.

    4 votes
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  2. Ability to view and change data management endpoint SKU from Azure Portal

    Currently it's required to create a support ticket in order to change the data management endpoint SKU when there is a need for scaling the ingestion through event hub to a database table in ADX. The ability to view and change the endpoint scaling from the portal would be a great feature.

    4 votes
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  3. project wildcard support

    It would be great if we could provide wildcard support for the project statement. This would be helpful in prioritizing certain columns visually (i.e. column 'x' first, column 'y' second) while still accommodating for the dynamic nature of Kusto function output.
    When creating functions in KQL you typically end up with dependencies which cause a version of one function to return more \ different columns than before. Right now, for me to reorder columns I would need to project them all individually - and when versioning functions this can have a huge trickle-down effect that causes a bunch of unnecessary…

    4 votes
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  4. WithAadUserPromptAuthentication method not available in .NetStandard library

    In Kusto.data Nuget for .NET framework WithAadUserPromptAuthentication method is available in KustoCOnnectionStringBuilder class.

    However this is missing from .NetStandard Nuget library.

    Can this be added?

    Eg:

    KustoConnectionStringBuilder($"https://{serviceName}.kusto.windows.net") .WithAadUserPromptAuthentication(authority);

    4 votes
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  5. Have an desktop client that allows sharing of queries, i.e. integration with data studio

    It would be awesome to have the capability to connect to Azure Data Explorer from Azure Data Studio so I can use one IDE for all my data style analytics.

    4 votes
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  6. Create New Management Function to Create Data Connections

    You can script deployment of a Data Explorer cluster using an ARM template. Everything works, except data connections. This is because the validation requires target tables to exists before creating a data connection.

    I suggest a new management function is created that works something like this:

    .create data connection with (name="", kind="EventGrid", storageAccountResourceId="", eventHubResourceId="", consumerGroup="", tableName="", dataFormat="", mappingRuleName="")

    This way I can create data connection in a .csl file along with tables, functions, policies etc.

    3 votes
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  7. Support drop all functions in a db.

    Please provide an easy way to drop all functions in a db.

    this does not work:
    ".drop function <| .show functions"

    The currently proposed workaround from the Kusto Team does not appear user friendly:

    a. Run the following command

    .show functions
    | summarize run_me_with_caution_after_carefully_reviewing = strcat_array(make_list(strcat(".drop function ['", Name, "']")), "\n")

    b. Copy the result and save as a script (text file)
    c. Use Kusto.Cli to run the `script`
    d. [hope your team members don’t get mad at you. or me. If anyone asks – a) I had nothing to do with functions getting unintentionally dropped; b) they can be…

    3 votes
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  8. Downsampling data over time

    As data ages, storage and query could be further optimized by down sampling the data. There should be a process or method to provide an aggregate query that could run on data older than X time. Example: My database retention is 365 days and i ingest 3 samples per minute. After data is 31 days old i can provide a query that will aggregate by MAX value over 1 minute. After 90 days, another aggregate runs that finds the Max value over 5 minutes. Raw data is of course deleted after aggregate runs.

    3 votes
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  9. Time Discrete view for power bi.

    We use ADX as time series DB and
    a BI dashboarding tool (power bi)

    But BI don't like non Discrete time events, no calculations are possible, and the Bi aggregation are calculated not correctly (group by, avg)

    If we have a time discrete view , every BI tool will work very lovely.

    Comment:
    Make series are nice, but will not work , because it's in the pipelines before power bi, and the query optimizer will fail, an calculating a make series for all our 3 million device's an than lock to the power bi where time and device filter.

    Maybe…

    3 votes
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  10. Time weighted Avrage

    A time weighted Aggregation are needet because ussaly IOT data are compressed, this mean, if the values are not changing, no new entrys are transmitted.

    A normal avg will get errors.

    Also it will be nice, if this Aggregation is also avaible in make series command.

    3 votes
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  11. Ignore (cold) cached data

    When perf testing a query, it would be useful to wipe out any cold data that has been temporarily cached on the local disk so that I can get apples-to-apples comparisons between subsequent runs. I can imagine it either being something where I just set a flag to ignore any of the cold cached data or a command that would completely wipe out any of that type of cached data. Note that I would not expect any of this to affect the standard hot cache data which always lives on the disk.

    2 votes
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  12. Follow at the table level

    We love the database follower feature but it would be fantastic if we could follow at a table level.

    2 votes
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  13. Invoke a function from another database

    Currently I can only invoke a function if it is in the same database. I would like to invoke functions in other databases (and ideally in other clusters.) There are two main use cases:
    1) We have some useful helper functions that use the invoke pattern. We have to copy them to all of our databases.
    2) When doing .set-or-append commands, I'm stuck if my query involves a an invoked function on database A but I want the results written to database B.

    2 votes
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  14. Include function call stack trace in query error messages

    Picture this scenario: you are calling a Kusto function but get a syntax error. But where is the syntax error coming from exactly? The error message doesn't say. You inspect the code for the function only to find references to other functions inside, and the way to know which one of those is the culprit is to run them one by one. And then each of those functions might be calling other functions too!
    Wouldn't it be nice if the error message told you the exact function where the error is happening from?

    2 votes
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  15. Support 0 as number of minimum node of cluster

    We sometimes use this query engine once a day or so. We want to avoid manage start up node. it's fine to it takes to start up and load data time and hope Azure Data Explorer support "0" (Zero) number as minimum cluster node.
    We want to get OPTION for that...

    Similar Services- Azure Machine Learning Services - AmlCompute.

    2 votes
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  16. Azure data explorer ingesion: json mapping only in single line

    I’m ingesting data to Azure Data Explorer from Logstash and figured out a feature that makes uncomfortable to use.
    If I put ‘enter’ between query, it occurs syntax error.
    (e.g. .If I write [create table sampletable
    ingestion json mapping ‘samplemapping’ (…)], it doesn’t work. If I write with one line, it works with no error)

    If it fixed, it will be very helpful to introduce ADX to customers :)

    2 votes
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  17. correlate kusto ingestion failure with status queues

    Currently, kusto ingestion calls don't return success or failure immediately. We need to query the status queue. If we have a lot of updates happening, there needs to be a way to relate success or failure to ingestion request.

    2 votes
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  18. Plugin support for the desktop application

    It would be great if there were a way to add a plugin to the desktop version of Kusto Explorer.

    2 votes
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  19. Enable functions to return multiple tables

    Functions today can only return one table. It would be really helpful if functions were able to return multiple tables to facilitate parallel queries.

    2 votes
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  20. add ContainsAnyOfTheFollowing operator

    Just need the following native kusto function:

    Mytable
    | where field1 containsAnyOfTheFollowing (“a”, “b”, “c”)

    2 votes
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