Create and manage Custom Expectations

Create Custom Expectations to extend GX functionality and solve unique business requirements.

Create a Custom Column Aggregate Expectation

Evaluates a single column and produces an aggregate Metric

Create a Custom Column Map Expectation

Evaluates a single column and performs a yes or no query on every row in the column

Create a Custom Batch Expectation

Evaluates an entire Batch, and answers a semantic question about the Batch

Create a Custom Column Pair Map Expectation

Evaluates a pair of columns and performs a yes or no query about the row-wise relationship between the two columns

Create a Custom Multicolumn Map Expectation

Evaluates a set of columns and performs a yes or no query about the row-wise relationship between the columns

Create a Custom Regex-Based Column Map Expectation

Evaluates a single column and performs a yes or no regex-based query on every row in the column

Create a Custom Set-Based Column Map Expectation

Evaluates a single column and determines if each row in the column belongs to the specified set

Create a Custom Query Expectation

Runs Expectations against custom query results and makes intermediate queries to your database

Create a Custom Parameterized Expectation

Inherits classes from existing Expectations and then creates a new customized Expectation