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Azure Synapse Analytics

We would love to hear your ideas for new features for Azure Synapse Analytics. Below, enter a new idea or upvote an existing one. The Synapse engineering team pays attention to all requests.

If instead you need a technical question answered or help, try the these options: DocumentationMSDN forum, and StackOverflow. If you need support, please open a support ticket.

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  1. Add support for "Delta Lake" file format in Azure Data Lake Store / HDFS

    Today we can query data stored in parquet files on ADLS. It would be fantastic to extend this to support the new "Delta Lake" file format recently open-sourced by the DataBricks team ( see https://delta.io )

    This would allow us to take advantage of ACID guarantees that the delta format brings to the data lake.

    423 votes

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    under review  ·  32 comments  ·  SQL/Polybase  ·  Flag idea as inappropriate…  ·  Admin →
  2. User Defined Retention Periods for Restore Points

    SQL DW doesn't have the capability to specify longer term retention capabilities as released for SQL DB recently. The workaround is to restore and pause. It would be great to have this capability for compliance and auditing requirements.

    318 votes

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    43 comments  ·  SQL/Management  ·  Flag idea as inappropriate…  ·  Admin →
  3. Support for Recursive CTE

    It would be great if you can add support for recursive CTEs for computing hierarchical data

    199 votes

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    under review  ·  9 comments  ·  SQL/Table Structure  ·  Flag idea as inappropriate…  ·  Admin →
  4. Allow DWU to scale without interruption

    The scaling disrupts the current session, and it's often not allowable in the production. Instead, it should finish off the existing session (sqls), and scale after that. That way, the scaling up or down can be done without causing the production disruption.

    198 votes

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    7 comments  ·  Flag idea as inappropriate…  ·  Admin →
  5. Support for Entity Framework

    Support for Entity Framework in Azure SQL Data Warehouse would allow for greater usability in general, but it would also allow for better support of other frameworks/protocols. Specifically, we have a need to serve our data through an OData feed, and Entity Framework's deferred execution would allow us to handle OData's Query Options in a much simpler way.

    185 votes

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    17 comments  ·  SQL/Integration  ·  Flag idea as inappropriate…  ·  Admin →
  6. Support for spatial data type

    Spatial data shlould be supported by SQL Data Warehouse the same way it is supported by SQL Server.

    180 votes

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    under review  ·  9 comments  ·  SQL/Table Structure  ·  Flag idea as inappropriate…  ·  Admin →
  7. Expose File Properties as additional columns to load in SQL DW

    It would be helpful if some of the properties of a BLOB file could be exposed in the external table such as: Last Modified, Filename, Size. It should be optional and could be defined in the EXTERNAL FILE FORMAT definition. Each Property should be appended to the end of the result set of an external table in the order given in the definition.

    For instance, if we are loading a directory of several files we can read the filename and derive a new column. For example, we might have a directory with 20160504.csv and 20160505.csv and the contents of the…

    153 votes

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    11 comments  ·  SQL/Loading  ·  Flag idea as inappropriate…  ·  Admin →
  8. Lower scale points for Dev/Test environments

    SQL Data Warehouse scale stepping should be much smaller (10 DWU or even 1 DWU), than 100 DWU!
    Please fix that ASAP!
    Thank you!

    149 votes

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    13 comments  ·  SQL/Management  ·  Flag idea as inappropriate…  ·  Admin →
  9. @@ROWCOUNT Support

    Please enable @@ROWCOUNT?

    Furthermore considering that we cannot switch NOCOUNT on, then why should it be such a secret/coded mission to track the number of rows affected by the most recent snippet of code? The proposed work-around seems onerous and doesn't always work (for dynamic SQL) yet my query window still knows and always-prints the fact that it returned 15 rows to me, for example, so why can we not leverage this elementary information inside the selfsame query (?):

    SELECT SUM(rowcount) AS rowcount
    FROM sys.dmpdwsqlrequests
    WHERE row
    count <> -1
    AND request_id IN

                    (   SELECT
    137 votes

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    under review  ·  7 comments  ·  SQL/T-SQL  ·  Flag idea as inappropriate…  ·  Admin →
  10. Delta lake support to SQL on Demand

    Currently, Delta lake table is not supported to be queried using SQL on Demand. Adding this functionality would help to greatly use SQL on-demand for analyzing the delta lake table.

    This will save time to query any Spark database delta lake table without spinning spark pools.

    133 votes

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    under review  ·  19 comments  ·  Workspace/SQL Scripts  ·  Flag idea as inappropriate…  ·  Admin →
  11. 122 votes

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    13 comments  ·  Flag idea as inappropriate…  ·  Admin →
  12. Provide File Format to read and load JSON and XML data from Storage

    Able to read the JSON and XML file as part of external system OR provide functionality like Extractor in Data Lake analytics so we can write our own Extractor to read respective data format.

    111 votes

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    under review  ·  4 comments  ·  SQL/Loading  ·  Flag idea as inappropriate…  ·  Admin →
  13. 109 votes

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    under review  ·  7 comments  ·  SQL/T-SQL  ·  Flag idea as inappropriate…  ·  Admin →
  14. Shrinkdatabase command support

    Shrinkdatabase command should to be supported even if TDE is on or off because extra cost is charged in case that the unallocated space is huge.

    89 votes

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    3 comments  ·  SQL/Management  ·  Flag idea as inappropriate…  ·  Admin →
  15. Enable Intellisense With SSMS

    Intellisense is a very handy feature when using SSMS to write queries against Sql Server databases. It increases development time by reducing typographical errors.

    It would be nice to have with Sql Data Warehouse.

    89 votes

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    4 comments  ·  SQL/Other  ·  Flag idea as inappropriate…  ·  Admin →
  16. Pause Resume Azure SQL Data Warehouse Using SQL Command

    It would be great if we can have SQL command to Pause/Resume DB instance like how we do for Scale up/down (under Master DB). This will help us to manage the same from ADF and don't have to worry about trigger REST API or PowerShell

    75 votes

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    1 comment  ·  SQL/Management  ·  Flag idea as inappropriate…  ·  Admin →

    Thank you for voting for this feature. We understand this scenario and will consider this in a future release. For now, please continue monitoring this item and have your team vote for this feature. Thank you for your patience.

  17. Table Extended Properties

    Add the ability to store table extended properties so that meta data about the table can be stored. This will help with self documentation to aid BI Developers.

    72 votes

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    13 comments  ·  SQL/Table Structure  ·  Flag idea as inappropriate…  ·  Admin →
  18. Stuff.....For XML

    Please provide support for STUFF......FOR XML so we can do complex concatenation using Azure Data Warehouse. Right now its kind of show stopper for us due to time taken by workarounds (while loop).

    66 votes

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    under review  ·  5 comments  ·  SQL/Table Structure  ·  Flag idea as inappropriate…  ·  Admin →
  19. Support Always encrypted in SQL Data warehouse

    Always Encrypted makes the data to be only available to client side applications and not visible to Database administrators also. It makes the data to be more secure. It is especially needed in the case of Azure, where PII data is stored in cloud.

    65 votes

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    3 comments  ·  SQL/Security  ·  Flag idea as inappropriate…  ·  Admin →
  20. Add support for synonyms

    CTAS to a new table is often a pattern that's used in DW for data processing workloads. Instead of RENAME OBJECT operations from old tables to the new ones using CTAS, it would be great if we can add synonym support to DW, so that switching to the new table is an atomic operation, and is reliable.

    63 votes

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    under review  ·  3 comments  ·  SQL/Other  ·  Flag idea as inappropriate…  ·  Admin →
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