Hello @Oman ,
Welcome to Microsoft Q&A platform.
Could you please provide more details on the extended properties which you are referencing to?
Note: Some of the extended properties are not supported in the Azure Data Catalog.
The specific properties differ from data source to data source but, in general, the Data Catalog publishing service extracts the following information:
- Asset Name
- Asset Type
- Asset Description
- Attribute/Column Names
- Attribute/Column Data Types
- Attribute/Column Description
Important note: For data sources such as SQL Server Analysis Services that have a first-class Description property, the Data Catalog data source registration tool extracts that property value. For on-premises SQL Server relational databases that lack a first-class Description property, the Data Catalog data source registration tool extracts the value from the ms_description extended property for objects and columns. This property is not supported for SQL Azure.
For more information, see Using Extended Properties on Database Objects.
For more details, refer “What properties does it extract for data assets that are registered?”.
Hope this helps. Do let us know if you any further queries.