expect_column_values_to_not_be_null

Expect column values to not be null.

To be counted as an exception, values must be explicitly null or missing, such as a NULL in PostgreSQL or an
np.NaN in pandas. Empty strings don't count as null unless they have been coerced to a null type.

expect_column_values_to_not_be_null is a :func:column_map_expectation <great_expectations.execution_engine.execution_engine.MetaExecutionEngine .column_map_expectation>.

Args:

• column (str): The column name.

Keyword Args:

• mostly (None or a float between 0 and 1): Return "success": True if at least mostly fraction of values match the expectation. For more detail, see :ref:mostly.

Other Parameters:

• result_format (str or None): Which output mode to use: BOOLEAN_ONLY, BASIC, COMPLETE, or SUMMARY.
  For more detail, see :ref:result_format <result_format>.
• include_config (boolean): If True, then include the expectation config as part of the result object. For more detail, see :ref:include_config.
• catch_exceptions (boolean or None): If True, then catch exceptions and include them as part of the result object. For more detail, see :ref:catch_exceptions.
• meta (dict or None): A JSON-serializable dictionary (nesting allowed) that will be included in the output without modification. For more detail, see :ref:meta.

Returns:

An ExpectationSuiteValidationResult

Exact fields vary depending on the values passed to :ref:result_format <result_format> and
:ref:include_config, :ref:catch_exceptions, and :ref:meta.

See Also:

• :func:expect_column_values_to_be_null <great_expectations.execution_engine.execution_engine.ExecutionEngine.expect_column_values_to_be_null>