Replication and data types
Enterprise Replication supports built-in data types and user-defined data types, including row types and collection types.
If you use SERIAL, SERIAL8, or BIGSERIAL data types, you must be careful when defining serial columns.
For non-master replicates, Enterprise Replication does not verify the data types of columns in tables that participate in replication. The replicated column in a table on the source database server must have the same data type as the corresponding column on the target server. The exception to this rule is cross-replication between simple large objects and smart large objects. By using master replicates, you can verify that all participants in a replicate have columns with matching data types. Master replicates also allow verification that each participant contains all replicated columns, and optionally that column names are the same on each participant.