AsStringUnredacted returns unredacted string representation.

NewEvaluator constructs new evaluator for changefeed expression.

NormalizeExpression normalizes select clause.

ParseChangefeedExpression is a helper to parse changefeed "select clause", and perform minimal validation checks.

RewritePreviewExpression handles CDC expressions created on 22.2 clusters.

SpansForExpression returns spans that must be scanned in order to evaluate changefeed expression.

TestingDisableFunctionsBlacklist disables blacklist, thus allowing all functions, including volatile ones, to be used in changefeed expressions.

Evaluator is a responsible for evaluating expressions in CDC.

NormalizedSelectClause represents normalized and error checked cdc expression.