Major Features and Improvements

• Add option to infer feature types from schema when generating statistics over CSV data.
• Add utility method set_domain to set the domain of a feature in the schema.
• Add option to compute weighted statistics by providing a weight feature.
• Add a PTransform for decoding TF examples.
• Add utility methods write_schema_text and load_schema_text to write and load the schema protocol buffer.
• Add option to compute statistics over a sample.
• Optimize performance of statistics computation (~2x improvement on benchmark datasets).

Bug Fixes and Other Changes

• Depends on apache-beam[gcp]>=2.8,<3.
• Depends on tensorflow-transform>=0.11,<0.12.
• Depends on tensorflow-metadata>=0.9,<0.10.
• Fix bug in clearing oneof domain_info field in Feature proto.
• Fix overflow error for large integers by casting them to STRING type.
• Added API docs.

Breaking changes

• Requires pre-installed tensorflow>=1.11,<2.
• Make tf.Example decoder to represent a feature with no value list as a missing value (None).
• Make StatsOptions as a class.

Deprecations

Release 0.9.0

• Initial release of TensorFlow Data Validation.