Restrictions for CDC

The following lists limitations for Change Data Capture:
  • Non-CDC data cannot be propagated to changelog stream topics.
  • Metadata or policy-driven operations are not propagated to changelog stream topics; only the changed data. For example, since column family and time-to-live (TTL) is metadata, they are not propagated to changelog stream topics. If metadata is changed in the source table, that information is unknown in relation to the destination stream topic data.
  • Propagation of MapR Database JSON arrays is expensive because the full array is propagated to the changelog stream topic.