Data definition language (ddl) expression annotation

Abstract

Techniques are provided for data definition language (DDL) expression annotation. DDL expression text is captured. The DDL expression text corresponds to a DDL change in a source database. A component set is determined. The component set includes at least one component in the DDL expression text. An annotation set is generated. The annotation set includes at least one annotation for at least one component of the component set. Each annotation includes hierarchical data describing at least one hierarchical relationship in the component set. For example, an annotation may include a component ID, a component position, a component length, a component type, and a parent component ID. The annotation set and a change record comprising the DDL expression text are transmitted to a replication client.

Dependencies are inferred from the claim text.