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Release History

3.6.0 (2024-10-25)

  • Support encryption headers in the cloud fetch request (#460 by @jackyhu-db)

3.5.0 (2024-10-18)

  • Create a non pyarrow flow to handle small results for the column set (#440 by @jprakash-db)
  • Fix: On non-retryable error, ensure PySQL includes useful information in error (#447 by @shivam2680)

3.4.0 (2024-08-27)

  • Unpin pandas to support v2.2.2 (#416 by @kfollesdal)
  • Make OAuth as the default authenticator if no authentication setting is provided (#419 by @jackyhu-db)
  • Fix (regression): use SSL options with HTTPS connection pool (#425 by @kravets-levko)

3.3.0 (2024-07-18)

  • Don't retry requests that fail with HTTP code 401 (#408 by @Hodnebo)
  • Remove username/password (aka "basic") auth option (#409 by @jackyhu-db)
  • Refactor CloudFetch handler to fix numerous issues with it (#405 by @kravets-levko)
  • Add option to disable SSL verification for CloudFetch links (#414 by @kravets-levko)

Databricks-managed passwords reached end of life on July 10, 2024. Therefore, Basic auth support was removed from the library. See https://docs.databricks.com/en/security/auth-authz/password-deprecation.html

The existing option _tls_no_verify=True of sql.connect(...) will now also disable SSL cert verification (but not the SSL itself) for CloudFetch links. This option should be used as a workaround only, when other ways to fix SSL certificate errors didn't work.

3.2.0 (2024-06-06)

  • Update proxy authentication (#354 by @amir-haroun)
  • Relax pyarrow pin (#389 by @dhirschfeld)
  • Fix error logging in OAuth manager (#269 by @susodapop)
  • SQLAlchemy: enable delta.feature.allowColumnDefaults for all tables (#343 by @dhirschfeld)
  • Update thrift dependency (#397 by @m1n0)

3.1.2 (2024-04-18)

  • Remove broken cookie code (#379)
  • Small typing fixes (#382, #384 thanks @wyattscarpenter)

3.1.1 (2024-03-19)

  • Don't retry requests that fail with code 403 (#373)
  • Assume a default retry-after for 429/503 (#371)
  • Fix boolean literals (#357)

3.1.0 (2024-02-16)

  • Revert retry-after behavior to be exponential backoff (#349)
  • Support Databricks OAuth on Azure (#351)
  • Support Databricks OAuth on GCP (#338)

3.0.3 (2024-02-02)

  • Revised docstrings and examples for OAuth (#339)
  • Redact the URL query parameters from the urllib3.connectionpool logs (#341)

3.0.2 (2024-01-25)

  • SQLAlchemy dialect now supports table and column comments (thanks @cbornet!)
  • Fix: SQLAlchemy dialect now correctly reflects TINYINT types (thanks @TimTheinAtTabs!)
  • Fix: server_hostname URIs that included https:// would raise an exception
  • Other: pinned to pandas<=2.1 and urllib3>=1.26 to avoid runtime errors in dbt-databricks (#330)

3.0.1 (2023-12-01)

  • Other: updated docstring comment about default parameterization approach (#287)
  • Other: added tests for reading complex types and revised docstrings and type hints (#293)
  • Fix: SQLAlchemy dialect raised DeprecationWarning due to dbapi classmethod (#294)
  • Fix: SQLAlchemy dialect could not reflect TIMESTAMP_NTZ columns (#296)

3.0.0 (2023-11-17)

  • Remove support for Python 3.7
  • Add support for native parameterized SQL queries. Requires DBR 14.2 and above. See docs/parameters.md for more info.
  • Completely rewritten SQLAlchemy dialect
    • Adds support for SQLAlchemy >= 2.0 and drops support for SQLAlchemy 1.x
    • Full e2e test coverage of all supported features
    • Detailed usage notes in README.sqlalchemy.md
    • Adds support for:
      • New types: TIME, TIMESTAMP, TIMESTAMP_NTZ, TINYINT
      • Numeric type scale and precision, like Numeric(10,2)
      • Reading and writing PrimaryKeyConstraint and ForeignKeyConstraint
      • Reading and writing composite keys
      • Reading and writing from views
      • Writing Identity to tables (i.e. autoincrementing primary keys)
      • LIMIT and OFFSET for paging through results
      • Caching metadata calls
  • Enable cloud fetch by default. To disable, set use_cloud_fetch=False when building databricks.sql.client.
  • Add integration tests for Databricks UC Volumes ingestion queries
  • Retries:
    • Add _retry_max_redirects config
    • Set _enable_v3_retries=True and warn if users override it
  • Security: bump minimum pyarrow version to 14.0.1 (CVE-2023-47248)

2.9.3 (2023-08-24)

  • Fix: Connections failed when urllib3~=1.0.0 is installed (#206)

2.9.2 (2023-08-17)

Note: this release was yanked from Pypi on 13 September 2023 due to compatibility issues with environments where urllib3<=2.0.0 were installed. The log changes are incorporated into version 2.9.3 and greater.

  • Other: Add examples/v3_retries_query_execute.py (#199)
  • Other: suppress log message when _enable_v3_retries is not True (#199)
  • Other: make this connector backwards compatible with urllib3>=1.0.0 (#197)

2.9.1 (2023-08-11)

Note: this release was yanked from Pypi on 13 September 2023 due to compatibility issues with environments where urllib3<=2.0.0 were installed.

  • Other: Explicitly pin urllib3 to ^2.0.0 (#191)

2.9.0 (2023-08-10)

  • Replace retry handling with DatabricksRetryPolicy. This is disabled by default. To enable, set _enable_v3_retries=True when creating databricks.sql.client (#182)
  • Other: Fix typo in README quick start example (#186)
  • Other: Add autospec to Client mocks and tidy up make_request (#188)

2.8.0 (2023-07-21)

  • Add support for Cloud Fetch. Disabled by default. Set use_cloud_fetch=True when building databricks.sql.client to enable it (#146, #151, #154)
  • SQLAlchemy has_table function now honours schema= argument and adds catalog= argument (#174)
  • SQLAlchemy set non_native_boolean_check_constraint False as it's not supported by Databricks (#120)
  • Fix: Revised SQLAlchemy dialect and examples for compatibility with SQLAlchemy==1.3.x (#173)
  • Fix: oauth would fail if expired credentials appeared in ~/.netrc (#122)
  • Fix: Python HTTP proxies were broken after switch to urllib3 (#158)
  • Other: remove unused import in SQLAlchemy dialect
  • Other: Relax pandas dependency constraint to allow ^2.0.0 (#164)
  • Other: Connector now logs operation handle guids as hexadecimal instead of bytes (#170)
  • Other: test_socket_timeout_user_defined e2e test was broken (#144)

2.7.0 (2023-06-26)

  • Fix: connector raised exception when calling close() on a closed Thrift session
  • Improve e2e test development ergonomics
  • Redact logged thrift responses by default
  • Add support for OAuth on Databricks Azure

2.6.2 (2023-06-14)

  • Fix: Retry GetOperationStatus requests for http errors

2.6.1 (2023-06-08)

  • Fix: http.client would raise a BadStatusLine exception in some cases

2.6.0 (2023-06-07)

  • Add support for HTTP 1.1 connections (connection pools)
  • Add a default socket timeout for thrift RPCs

2.5.2 (2023-05-08)

  • Fix: SQLAlchemy adapter could not reflect TIMESTAMP or DATETIME columns
  • Other: Relax pandas and alembic dependency specifications

2.5.1 (2023-04-28)

  • Other: Relax sqlalchemy required version as it was unecessarily strict.

2.5.0 (2023-04-14)

  • Add support for External Auth providers
  • Fix: Python HTTP proxies were broken
  • Other: All Thrift requests that timeout during connection will be automatically retried

2.4.1 (2023-03-21)

  • Less strict numpy and pyarrow dependencies
  • Update examples in README to use security best practices
  • Update docstring for client.execute() for clarity

2.4.0 (2023-02-21)

  • Improve compatibility when installed alongside other Databricks namespace Python packages
  • Add SQLAlchemy dialect

2.3.0 (2023-01-10)

  • Support staging ingestion commands for DBR 12+

2.2.2 (2023-01-03)

  • Support custom oauth client id and redirect port
  • Fix: Add none check on _oauth_persistence in DatabricksOAuthProvider

2.2.1 (2022-11-29)

  • Add support for Python 3.11

2.2.0 (2022-11-15)

2.1.0 (2022-09-30)

  • Introduce experimental OAuth support while Bring Your Own IDP is in Public Preview on AWS
  • Add functional examples

2.0.5 (2022-08-23)

  • Fix: closing a connection now closes any open cursors from that connection at the server
  • Other: Add project links to pyproject.toml (helpful for visitors from PyPi)

2.0.4 (2022-08-17)

  • Add support for Python 3.10
  • Add unit test matrix for supported Python versions

Huge thanks to @dbaxa for contributing this change!

2.0.3 (2022-08-05)

  • Add retry logic for GetOperationStatus requests that fail with an OSError
  • Reorganised code to use Poetry for dependency management.

2.0.2 (2022-05-04)

  • Better exception handling in automatic connection close

2.0.1 (2022-04-21)

  • Fixed Pandas dependency in setup.cfg to be >= 1.2.0

2.0.0 (2022-04-19)

  • Initial stable release of V2
  • Added better support for complex types, so that in Databricks runtime 10.3+, Arrays, Maps and Structs will get deserialized as lists, lists of tuples and dicts, respectively.
  • Changed the name of the metadata arg to http_headers

2.0.b2 (2022-04-04)

  • Change import of collections.Iterable to collections.abc.Iterable to make the library compatible with Python 3.10
  • Fixed bug with .tables method so that .tables works as expected with Unity-Catalog enabled endpoints

2.0.0b1 (2022-03-04)

  • Fix packaging issue (dependencies were not being installed properly)
  • Fetching timestamp results will now return aware instead of naive timestamps
  • The client will now default to using simplified error messages

2.0.0b (2022-02-08)

  • Initial beta release of V2. V2 is an internal re-write of large parts of the connector to use Databricks edge features. All public APIs from V1 remain.
  • Added Unity Catalog support (pass catalog and / or schema key word args to the .connect method to select initial schema and catalog)

Note: The code for versions prior to v2.0.0b is not contained in this repository. The below entries are included for reference only.

1.0.0 (2022-01-20)

  • Add operations for retrieving metadata
  • Add the ability to access columns by name on result rows
  • Add the ability to provide configuration settings on connect

0.9.4 (2022-01-10)

  • Improved logging and error messages.

0.9.3 (2021-12-08)

  • Add retries for 429 and 503 HTTP responses.

0.9.2 (2021-12-02)

  • (Bug fix) Increased Thrift requirement from 0.10.0 to 0.13.0 as 0.10.0 was in fact incompatible
  • (Bug fix) Fixed error message after query execution failed -SQLSTATE and Error message were misplaced

0.9.1 (2021-09-01)

  • Public Preview release, Experimental tag removed
  • minor updates in internal build/packaging
  • no functional changes

0.9.0 (2021-08-04)