Removing a Table Column from the mapping specification

Remove a database column from the schema.

Remove a supported database table column.


  1. Remove the field to column mapping from the configuration. See Mapping kafka topics to database tables.
  2. On a database node, use the ALTER TABLE to remove the column from the table.
    Tip: You can only remove non-PRIMARY KEY columns.
  3. Confirm that the schema change has been pushed to all nodes using nodetool describecluster.
    Important: Data synchronization may fail if the schema change is inconsistent across the DataStax cluster.