Removing a Table Column from the mapping specification
Remove a supported database table column.
Remove the field to column mapping from the configuration. See Mapping pulsar topics to database tables.
On a database node, use the ALTER TABLE to remove the column from the table.
You can only remove non-PRIMARY KEY columns.
Confirm that the schema change has been pushed to all nodes using nodetool describecluster.
Data synchronization may fail if the schema change is inconsistent across the entire DataStax cluster.