ADO.NET Provider for Databricks

Build 26.0.9655

Changelog

General Changes

DateVersionSourceCategoryTypeDescription
2026-05-2726.0.9643GeneralConnectionRemoved
  • Removed the deprecated ReplaceInvalidTypesWithNull connection property. Use the ReplaceInvalidValuesWithNull property instead.
2026-05-0726.0.9623GeneralData ModelAdded
  • Added the ColumnCapabilities column to the sys_tablecolumns system table. This column is a bit mask denoting the column's write capabilities.
2026-04-3026.0.9616DatabricksConnectionChanged
  • Changed the default value of the Catalog connection property from "hive_metastore" to empty. The Catalog property is now required to establish a connection. Note that "Unity Catalog volume" (the default value of CloudStorageType) is not available when Catalog is set to "hive_metastore". For non-Unity Catalog environments, set Catalog to "hive_metastore" explicitly.
2026-04-2926.0.9615DatabricksCompatibilityRemoved
  • Removed support for Databricks Runtime 10, 11, and 12, which are no longer in the supported runtime range.
2026-04-2826.0.9614ADO.NETConnectionAdded
  • Added the following functions to the driver class. If you pass these functions an exception with no error records, an InvalidArgumentException is thrown.
    • containsErrorSource: Returns true if the exception contains an error record for the provided source name, or false otherwise.
    • getErrorCodeFromSource: Returns the numeric error code from the error record with the given source, or -1 if there is no error record from that source.
    • containsErrorCode: Returns true if the exception contains an error record with the provided error code, or false otherwise.
    • findErrorProperty: Returns the value of the property with the given name, or null if no property with that name is defined.
    • formatErrorRecords: Returns a string containing all the exception's error records, including messages, codes, properties, and error locations.
2026-04-2826.0.9614DatabricksConnectionChanged
  • Removed the PersonalAccessTokenExpiresIn connection property. This property is no longer supported when creating personal access tokens.
2026-04-2726.0.9613DatabricksConnectionRemoved
  • Removed the Metadata UseCloudFetch connection property, which formerly could be set to either True or False. It is now always True.
  • Removed the following connection properties, which are now obsolete:
    • DescribeCommand
    • DetectView
    • HasDiscoveryFromZookeeper
    • UseDescTableQuery
    • UseInsertSelectSyntax
    • UseShowDatabasesQuery
    • UseShowTablesQuery
    • UseZookeeperDiscovery
    • ZookeeperNamespace
    • ZookeeperTimeout
2026-04-1526.0.9601GeneralQuery ExecChanged
  • String comparisons using GREATER, LESS, and CONTAINS operators are now case-insensitive by default.
2026-04-0126.0.9587ADO.NETAdded
  • Added support for EFCore 10.
2026-02-1025.0.9537DatabricksConnectionChanged
  • The default for the CloudStorageType property has changed from "DBFS" to "Unity Catalog volume". (Databricks does not recommend using DBFS as file storage.)
2026-02-1025.0.9537DatabricksConnectionAdded
  • Added the UnityCatalogVolume option to the CloudStorageType connection property. This option enables volume as an upload path.
2026-01-1325.0.9509GeneralAdded
  • Added support for the REGEXP_REPLACE() string function.
2025-12-0525.0.9470GeneralAdded
  • Added support for the INSERT INTO SELECT statement, with driver-side execution for providers that do not support the operation natively.
2025-10-0625.0.9410GeneralAdded
  • Support for parsing datetime formats using ".S" and ",S" for milliseconds and nanoseconds.
2025-09-1225.0.9386GeneralAdded
  • Added the IsInsertable, IsUpdateable, and IsDeleteable columns to the sys_tables table.
2025-09-1025.0.9384GeneralChanged
  • All columns in statically defined Views are now reported as read-only.
2025-09-0325.0.9377GeneralChanged
  • Corrected the behavior when IN criteria with NULL values are used in the projection part. It now returns NULL instead of 0. For example, "NULL IN (1,2)" returns "NULL".
2025-09-0125.0.9375GeneralAdded
  • Added support for using the CAST function with infinity values. This function can cast "inf" and "-inf" to DOUBLE, FLOAT, or REAL.
2025-08-2925.0.9372DatabricksAdded
  • Added the IncludeSystemSchemas connection property to specify whether to expose the information_schema system schema. The default is false.
2025-08-2625.0.9369DatabricksChanged
  • The WHERE clause now supports all SQL standard-compliant syntax.
2025-08-2125.0.9364GeneralChanged
  • Report behavior change:
    • Fixed inconsistent string value comparisons in non-table queries.
    • For example, "SELECT 'A' = 'a'" previously returned false, but it now returns true.
2025-08-1325.0.9356GeneralChanged
  • Changed the maximum number of pages held in memory from 15 to 5 for the page providers to decrease heap usage.
2025-07-0825.0.9320DatabricksAdded
  • Added support for the ApplicationName property for connections to Databricks SQL Warehouse.
2025-06-2525.0.9307GeneralRemoved
  • Removed the "ADLS Gen 1" value from the ConnectionType property.
2025-06-2025.0.9302GeneralAdded
  • Created the following functions:
    • TEXT_ENCODE: encodes a string into a different charset (UTF8 → UTF7 and returns a binary array as the result).
    • TEXT_DECODE: takes a binary array and decodes it back into a string when provided the charset.
    • BASE64_ENCODE: takes a binary array and encodes it as a base64 string (varchar).
    • BASE64_DECODE: takes a base 64-encoded string and decodes it into a binary array.
2025-06-1825.0.9300GeneralChanged
  • The internal code for exception handling has been refactored. Exception messages returned during certain error conditions may now have different wording or formatting.
2025-06-1625.0.9298DatabricksDeprecated
  • Deprecated the Basic AuthScheme.
2025-05-2925.0.9280ADO.NETChanged
  • We have improved our implementation of the ADO.NET DbDataReader.GetDataTypeName so that it now returns database data type names, such as varchar, tinyint, and datetime. Previously we returned the fully-qualified name of the column’s .NET type, in a format like "System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e".
2025-05-2725.0.9278ADO.NETRemoved
  • Removed support for the C# implementation of SQLite. Features that previously used this implementation by default, such as AutoCache and EF6 schema caching, now require the native SQLite driver.
2025-05-2725.0.9278GeneralRemoved
  • Removed the "Proprietary" enum option from ProxyAuthscheme.
2025-05-0825.0.9259DatabricksChanged
  • Renamed the UseLegacyDataModel connection property to "SupportMultiCatalog".
2025-05-0825.0.9259DatabricksAdded
  • Added support for retrieving foreign key metadata. This requires Databricks Runtime 11.3 LTS or later with Unity Catalog and Delta Lake.
2025-04-0925.0.9230DatabricksAdded
  • Added support for the Azure Managed Service Identity (MSI) AuthScheme connection property.
2025-02-1524.0.9177GeneralAdded
  • Added support for converting unsigned integer types to the nearest signed data type that has enough precision to hold the unsigned value.This is done for JDBC only because it does not have support for unsigned data types.
2024-11-2724.0.9097GeneralAdded
  • Added ThreadId to LogModule output. Logfile lines now include the Thread ID associated with the action being performed.
2024-11-1424.0.9084DatabricksAdded
  • Added a new connection property, CheckSQLWarehouseAvailability, to specify whether the driver checks the availability of the SQL Warehouse. The default value is True, enabling the check by default.
2024-11-0824.0.9078DatabricksDeprecated
  • Deprecated the UseInsertSelectSyntax property.
2024-10-2524.0.9064DatabricksChanged
  • Exposed the DefaultColumnSize connection property, which was previously hidden. Default value is 1048576.
2024-09-2624.0.9035DatabricksAdded
  • Added a new AuthScheme OAuthU2M to support user-to-machine authentication.
  • Added a new AuthScheme OAuthM2M to support machine-to-machine authentication.
  • Added a new connection property OAuthLevel, which specifies the valid range of the generated access token. Allowed entries are WorkspaceLevel and AccountLevel.
  • Added a new connection property DatabricksAccountId, which specifies the Databricks account ID and is only required when OAuthU2MLevel is AccountLevel.
2024-08-2024.0.8998DatabricksAdded
  • Added support for the following AWS regions: HYDERABAD, MELBOURNE, CALGARY, SPAIN, ISOLATEDUSEAST, ISOLATEDUSEASTB, and ISOLATEDUSWEST.
2024-08-0224.0.8980DatabricksAdded
  • Added the ServerTimezone connection property to allow users to specify the time zone ID of the current platform. Options are UTC (default), LOCAL, or a user-specified time zone.
2024-07-0524.0.8952DatabricksDeprecated
  • Deprecated the following properties: AzureSubscriptionId, AzureResourceGroup, and AzureWorkspace. These properties are no longer required when using AzureServicePrincipal authentication, but they are retained for compatibility.
2024-06-1824.0.8935DatabricksChanged
  • Improved performance for batch INSERT operations when the UseUploadAPI connection property is enabled.
2024-05-0924.0.8895GeneralChanged
  • The ROUND function previously did not accept negative precision values. That feature has now been restored.
2024-03-2123.0.8846DatabricksChanged
  • Changed the behavior of the QueryAllMetadata property. When set to False and the Database property is empty, the driver queries metadata from all schemas/databases under the default catalog, not only from the default schema/database under the default catalog.
2024-03-1523.0.8840GeneralAdded
  • Created a new SQL function called STRING_COMPARE that provides java's String.compare() ability to SQL queries. Returns a number representative of the compared value of two strings
2024-01-1823.0.8783ADO.NETAdded
  • Added support for EFCore 8.
2023-11-2923.0.8733GeneralChanged
  • The ROUND function doesn't accept the negative precision values anymore.
2023-11-2923.0.8733GeneralChanged
  • The returning types of the FDMonth, FDQuarter, FDWeek, LDMonth, LDQuarter, LDWeek functions are changed from Timestamp to Date.
  • The return type of the ABS function will be consistent with the parameter value type.
2023-11-2823.0.8732GeneralAdded
  • Added the HMACSHA256 formatter to allow for secrets to be decoded if it is in base64 format
2023-11-1523.0.8719ADO.NETChanged
  • NuGet license and icon are now embedded within the package itself, in compliance with the package authoring best practices.
2023-10-2023.0.8693DatabricksAdded
  • Added support for Bulk Update and Bulk Delete for Databricks SQL Endpoint(SQL Warehouse).
2023-08-2423.0.8636DatabricksAdded
  • Added support for the Basic AuthScheme. Set this to authenticate with Databricks' user and access token.
2023-07-2023.0.8601DatabricksAdded
  • Added the QueryAllMetadata property to specify whether to query all catalogs and schemas (databases) or only the default catalog and schema (database).
2023-06-2023.0.8571GeneralAdded
  • Added the new sys_lastresultinfo system table.
2023-06-0823.0.8559DatabricksChanged
  • The default value of the UseLegacyDataModel property has been changed to True, indicating that the driver now supports multi-catalog by default.
2023-05-1523.0.8535DatabricksAdded
  • Added the AllowPreparedStatement property to prepare a query statement before its execution.
2023-04-2523.0.8515GeneralRemoved
  • Removed support for the SELECT INTO CSV statement. The core code doesn't support it anymore.
2023-04-1923.0.8509ADO.NETRemoved
  • Removed support for EFCore 3.1.
2023-04-1823.0.8508ADO.NETRemoved
  • Removed support for SSRS 2012
2023-04-1823.0.8508ADO.NETAdded
  • Added support for SSRS 2022.
2023-03-3122.0.8490DatabricksAdded
  • Added support for the AzureAD AuthScheme.
2023-03-1522.0.8474DatabricksAdded
  • Added the PersonalAccessTokenExpiresIn property to specify the lifetime in seconds of the Databricks personal access token.
2023-02-0122.0.8432DatabricksAdded
  • Added the ConnectRetryWaitTime property to specify the number of seconds to wait to retry a connection request.
2022-12-1422.0.8383GeneralChanged
  • Added the Default column to the sys_procedureparameters table.
2022-11-1122.0.8350DatabricksAdded
  • Added the UseLegacyDataModel property. Set it to True to support the Unity Catalog. The default is False, which does not change the previous behavior (the catalog is always "CData").
2022-09-3022.0.8308GeneralChanged
  • Added the IsPath column to the sys_procedureparameters table.
2022-08-1222.0.8259DatabricksAdded
  • Added the UseUploadApi connection property to specify whether the Databricks Upload API will be used when executing Bulk Insert operations.
  • Added the DeleteDataOnDrop connection property to specify whether to completely delete the data and schema information of the delta table.
2022-07-1422.0.8230DatabricksChanged
  • Refactored metadata queries to improve the performance of GetTables and GetColumns.
2022-07-1422.0.8230DatabricksAdded
  • Added support for retrieving all schemas rather than just the default schema.
2022-06-0822.0.8194ADO.NETRemoved
  • Removed support for VS2010.
2022-05-1922.0.8174ADO.NETRemoved
  • Removed support for .NET 2.0.
2022-04-2722.0.8152ADO.NETRemoved
  • Removed support for EFCore 3.0 and EFCore5.0.
2022-03-0821.0.8102DatabricksAdded
  • Added the PrimaryKeyIdentifiers connection property to specify primary keys.
  • Added support for Batch Update/Delete operations.
2022-03-0121.0.8095DatabricksAdded
  • Added support for Delta Tables with the following ALTER features:
  • ALTER TABLE table_name
  • RENAME TO new_table_name
  • ADD [COLUMN | COLUMNS] (column_name column_type, ...)
  • ALTER COLUMN [SET | DROP] NOT NULL
  • RENAME COLUMN column_name TO new_column_name
2022-02-0821.0.8074DatabricksAdded
  • Added the ApplicationName connection property to specify the HTTP header UserAgent.
2022-02-0721.0.8073DatabricksAdded
  • Added the following Azure connection properties: AzureSubscriptionId, AzureResourceGroup, and AzureWorkspace.
2022-02-0721.0.8073DatabricksRemoved
  • Removed the AuthScheme AzureAD.
  • Removed five AzureAD connection properties: AzureUsername, AzurePassword, AzureADTenantId, AzureADClientId and AzureADClientSecret.
2022-02-0721.0.8073DatabricksReplacements
  • Use AzureServicePrincipal as the AuthScheme instead of AzureAd a replacement for AzureAD.
  • Added six AzureServicePrincipal connection properties as replacements: AzureTenantId, AzureClientId, AzureClientSecret.
2022-01-1421.0.8049DatabricksAdded
  • Added support for the NATIVEQUERY table function. This function can be used after a FROM to execute a query using Databricks native SQL. For example, `SELECT * FROM NATIVEQUERY('SELECT * FROM default.tbl PIVOT (...)')` will execute the inner query in Databricks directly and return the results. This will work even in tools which are not normally compatible with QueryPassthrough=true.
2021-12-0321.0.8007DatabricksDeprecated
  • The following connection properties are deprecated: UseShowDatabasesQuery, UseDescTableQuery, and UseShowTablesQuery. They were not being used.
2021-09-1621.0.7929DatabricksAdded
  • Added four connection properties: SSLClientCert, SSLClientCertPassword, SSLClientCertSubject, and SSLClientCertType.
2021-09-0221.0.7915GeneralAdded
  • Added support for the STRING_SPLIT table-valued function in the CROSS APPLY clause.
2021-08-0721.0.7889GeneralChanged
  • Added the KeySeq column to the sys_foreignkeys table.
2021-08-0621.0.7888GeneralChanged
  • Added the new sys_primarykeys system table.
2021-07-2321.0.7874GeneralChanged
  • Updated the Literal Function Names for relative date/datetime functions. Previously, relative date/datetime functions resolved to a different value when used in the projection as opposed to the predicate. For example: SELECT LAST_MONTH() AS lm, Col FROM Table WHERE Col > LAST_MONTH(). Formerly, the two LAST_MONTH() methods would resolve to different datetimes. Now, they will match.
  • As a replacement for the previous behavior, the relative date/datetime functions in the criteria may have an 'L' appended to them. For example: WHERE col > L_LAST_MONTH(). This will continue to resolve to the same values that were previously calculated in the criteria. Note that the "L_" prefix will only work in the predicate - it not available for the projection.
2021-07-0821.0.7859GeneralAdded
  • Added the TCP Logging Module for the logging information happening on the TCP wire protocol. The transport bytes that are incoming and ongoing will be logged at verbosity=5.
2021-06-0721.0.7828ADO.NETAdded
  • Added support for the DbCommand.CommandTimeout property.
2021-05-2921.0.7819ADO.NETRemoved
  • Removed support for SSRS 2008.
2021-04-2521.0.7785GeneralAdded
  • Added support for handling client side formulas during insert / update. For example: UPDATE Table SET Col1 = CONCAT(Col1, " - ", Col2) WHERE Col2 LIKE 'A%'
2021-04-2321.0.7783GeneralChanged
  • Updated how display sizes are determined for varchar primary key and foreign key columns so they will match the reported length of the column.
2021-04-1621.0.7776ADO.NETChanged
  • Separated the ADO.NET Provider assembly and Entity Framework Core 5 Nuget packages.
  • Single precision floating point numbers are now reported as with the Data Type Name as "real". Double precision floating point numbers now have their Data Type Name reported as "float". This change does not impact the actual data types of these columns - only the reported data type name.
  • Separate EFCore 3.0, 3.1 and EFCore 5 dlls are now shipped with the driver. The 2.0 and 2.1 EFCore dlls are removed.
2021-04-1621.0.7776GeneralAdded
  • Non-conditional updates between two columns is now available to all drivers. For example: UPDATE Table SET Col1=Col2
2021-04-1621.0.7776GeneralChanged
  • Reduced the length to 255 for varchar primary key and foreign key columns.
2021-04-1621.0.7776GeneralChanged
  • Updated implicit and metadata caching to improve performance and support for multiple connections. Old metadata caches are not compatible - you need to generate new metadata caches if you are currently using CacheMetadata.
2021-04-1621.0.7776GeneralChanged
  • Updated index naming convention to avoid duplicates.

Copyright (c) 2026 CData Software, Inc. - All rights reserved.
Build 26.0.9655