Class DataQualityRule (1.5.1)

DataQualityRule(mapping=None, *, ignore_unknown_fields=False, **kwargs)

A rule captures data quality intent about a data source.

This message has oneof_ fields (mutually exclusive fields). For each oneof, at most one member field can be set at the same time. Setting any member of the oneof automatically clears all other members.

.. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields

Attributes
Name	Description
`range_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.RangeExpectation` ColumnMap rule which evaluates whether each column value lies between a specified range. This field is a member of `oneof`_ `rule_type`.
`non_null_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.NonNullExpectation` ColumnMap rule which evaluates whether each column value is null. This field is a member of `oneof`_ `rule_type`.
`set_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.SetExpectation` ColumnMap rule which evaluates whether each column value is contained by a specified set. This field is a member of `oneof`_ `rule_type`.
`regex_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.RegexExpectation` ColumnMap rule which evaluates whether each column value matches a specified regex. This field is a member of `oneof`_ `rule_type`.
`uniqueness_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.UniquenessExpectation` ColumnAggregate rule which evaluates whether the column has duplicates. This field is a member of `oneof`_ `rule_type`.
`statistic_range_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.StatisticRangeExpectation` ColumnAggregate rule which evaluates whether the column aggregate statistic lies between a specified range. This field is a member of `oneof`_ `rule_type`.
`row_condition_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.RowConditionExpectation` Table rule which evaluates whether each row passes the specified condition. This field is a member of `oneof`_ `rule_type`.
`table_condition_expectation`	`google.cloud.dataplex_v1.types.DataQualityRule.TableConditionExpectation` Table rule which evaluates whether the provided expression is true. This field is a member of `oneof`_ `rule_type`.
`column`	`str` Optional. The unnested column which this rule is evaluated against.
`ignore_null`	`bool` Optional. Rows with `null` values will automatically fail a rule, unless `ignore_null` is `true`. In that case, such `null` rows are trivially considered passing. Only applicable to ColumnMap rules.
`dimension`	`str` Required. The dimension a rule belongs to. Results are also aggregated at the dimension level. Supported dimensions are ["COMPLETENESS", "ACCURACY", "CONSISTENCY", "VALIDITY", "UNIQUENESS", "INTEGRITY"]
`threshold`	`float` Optional. The minimum ratio of passing_rows / total_rows required to pass this rule, with a range of [0.0, 1.0]. 0 indicates default value (i.e. 1.0).

Classes

NonNullExpectation

NonNullExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether each column value is null.

RangeExpectation

RangeExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether each column value lies between a specified range.

RegexExpectation

RegexExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether each column value matches a specified regex.

RowConditionExpectation

RowConditionExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether each row passes the specified condition. The SQL expression needs to use BigQuery standard SQL syntax and should produce a boolean value per row as the result.

Example: col1 >= 0 AND col2 < 10

SetExpectation

SetExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether each column value is contained by a specified set.

StatisticRangeExpectation

StatisticRangeExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether the column aggregate statistic lies between a specified range.

TableConditionExpectation

TableConditionExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether the provided expression is true. The SQL expression needs to use BigQuery standard SQL syntax and should produce a scalar boolean result.

Example: MIN(col1) >= 0

UniquenessExpectation

UniquenessExpectation(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Evaluates whether the column has duplicates.