global_column_name_length_limit_chars
Use this parameter to set the maximum length of a Kafka topic field name that corresponds to a source column. If the length of the source column exceeds this value, the Kafka topic field name is truncated to the specified length.
By default, column names are truncated to 30 characters during output to Kafka (original product behavior). With APAR JR63074, which was released in IBM® Data Replication 11.4.0.3-5576, column name lengths that are longer than 30 characters are supported by the CDC Replication Engine for Kafka.
Set global_column_name_length_limit_chars to 255 for the longest column name length. The default value is 30. For upgrade, if you require longer names set global_column_name_length_limit_chars to 255 and recreate the subscription.
This parameter is hidden. To change its value, see Setting system parameters on source and target datastores.
- Applies to
- Target datastores
- Minimum Setting
- 30
- Maximum Setting
- 255
- Default Setting
- 30