Rule
import type { Rule } from "https://aws-api.deno.dev/v0.3/services/databrew.ts?docs=full";Represents a single data quality requirement that should be validated in the scope of this dataset.
§Properties
The expression which includes column references, condition names followed by variable references, possibly grouped and combined with other conditions.
For example, (:col1 starts_with :prefix1 or :col1 starts_with :prefix2) and (:col1 ends_with :suffix1 or :col1 ends_with :suffix2).
Column and value references are substitution variables that should start with the ':' symbol.
Depending on the context, substitution variables' values can be either an actual value or a column name.
These values are defined in the SubstitutionMap.
If a CheckExpression starts with a column reference, then ColumnSelectors in the rule should be null.
If ColumnSelectors has been defined, then there should be no columnn reference in the left side of a condition, for example, is_between :val1 and :val2.
For more information, see Available checks
List of column selectors. Selectors can be used to select columns using a name or regular expression from the dataset. Rule will be applied to selected columns.
A value that specifies whether the rule is disabled. Once a rule is disabled, a profile job will not validate it during a job run. Default value is false.
The map of substitution variable names to their values used in a check expression.
Variable names should start with a ':' (colon).
Variable values can either be actual values or column names.
To differentiate between the two, column names should be enclosed in backticks, for example, ":col1": "Column A".