Changelog

1.12.0 - 2026.01.12

• Drop support impala as a backend.
• Add support for DuckDB as a backend.

1.11.0 - 2025.12.17

• Drop support for Python 3.8 and Python 3.9.

1.10.0 - 2025.02.13

• Address deprecation warnings from sqlalchemy.
• Provide more type hints.

1.9.3 - 2025.01.13

Bug fixes

• Fix a bug in datajudge.WithinRequirement.add_date_no_overlap_constraint and datajudge.WithinRequirement.add_date_no_overlap_2d_constraint and datajudge.WithinRequirement.add_numeric_no_overlap_constraint in which some overlaps were not detected due to equality of their leftmost bounds.

1.9.2 - 2024.09.05

Bug fixes

• Fix a bug in datajudge.constraints.numeric.NumericPercentile which could lead to off-by-one errors in retrieving a percentile value.

1.9.0 - 2024.06.25

New features

• Add styling for assertion messages. See assertion-message-styling for more information.
• Add output_processors and filter_func parameters to datajudge.WithinRequiremen.tadd_uniques_equality_constraint, datajudge.WithinRequirement.add_uniques_superset_constraint and datajudge.WithinRequirement.add_uniques_subset_constraint.
• Add output_processors, filter_func and compare_distinct parameters to datajudge.BetweenRequirement.add_uniques_equality_constraint, datajudge.BetweenRequirement.add_uniques_superset_constraint and datajudge.BetweenRequirement.add_uniques_subset_constraint.
• Add output_processors parameter to datajudge.WithinRequirement.add_functional_dependency_constraint.

Other changes

• Provide a py.typed file.
• Remove usage of pkg_resources.

1.8.0 - 2023.06.16

New features

• Implement datajudge.WithinRequirement.add_functional_dependency_constraint.

Other changes

• Improve error message when a DataReference is constructed with a single column name instead of specifying a list of columns.

1.7.0 - 2023.05.11

New features

• Implement datajudge.WithinRequirement.add_categorical_bound_constraint.
• Extended datajudge.WithinRequirement.add_column_type_constraint to support column type specification using string format, backend-specific SQLAlchemy types, and SQLAlchemy's generic types.
• Implement datajudge.WithinRequirement.add_numeric_no_gap_constraint, datajudge.WithinRequirement.add_numeric_no_overlap_constraint,

1.6.0 - 2023.04.12

Other changes

• Ensure compatibility with sqlalchemy >= 2.0.

1.5.0 - 2023.03.14

New features

• Implement datajudge.BetweenRequirement.add_max_null_fraction_constraint and datajudge.WithinRequirement.add_max_null_fraction_constraint.
• Implement datajudge.BetweenRequirement.add_numeric_percentile_constraint and datajudge.WithinRequirement.add_numeric_percentile_constraint.

1.4.0 - 2023.02.24

New features

• Add partial and experimental support for db2 as a backend.

1.3.0 - 2023.01.17

New features

• Implement datajudge.BetweenRequirement.add_column_type_constraint. Previously, only the WithinRequirement method existed.
• Implemented an option infer_pk to automatically retrieve and primary key definition as part of datajudge.WithinRequirement.add_uniqueness_constraint.
• Added a name parameter to all add_x_constraint methods of WithinRequirement and BetweenRequirement. This will give pytest test a custom name.
• Added preliminary support for Impala.

Other changes

• Improve assertion error for datajudge.BetweenRequirement.add_row_matching_equality_constraint.

1.2.0 - 2022.10.21

New features

• Implemented specification of number of counterexamples in datajudge.WithinRequirement.add_varchar_regex_constraint.
• Implemented in-database regex matching for some dialects via computation_in_db parameter in datajudge.WithinRequirement.add_varchar_regex_constraint.
• Added support for BigQuery backends.

Bug fix

• Snowflake-sqlalchemy version 1.4.0 introduced an unexpected change in behaviour. This problem is resolved by pinning it to the previous version, 1.3.4.

1.1.1 - 2022.06.30

New: SQL implementation for KS-test

• The Kolgomorov Smirnov test is now implemented in pure SQL, shifting the computation to the database engine, improving performance tremendously.

1.1.0 - 2022.06.01

New feature: Statistical Tests

• Implemented a new constraint datajudge.constraints.stats.KolmogorovSmirnov2Sample for datajudge.BetweenRequirement that performs a Kolmogorov Smirnov Test between two data sources.

1.0.1 - 2022.05.24

Bug fix:

• The method is_deprecated of datajudge.Condition was called despite not existing.