You can create a backup that includes a subset of the schema or tables in a database by using the following gpcrondump options:

• -t schema.tablename – specify a table to include in the backup. You can use the -t option multiple times.
• --table-file=filename – specify a file containing a list of tables to include in the backup.
• -T schema.tablename – specify a table to exclude from the backup. You can use the -T option multiple times.
• --exclude-table-file=filename – specify a file containing a list of tables to exclude from the backup.
• -s schema_name – include all tables qualified by a specified schema name in the backup. You can use the -s option multiple times.
• --schema-file=filename – specify a file containing a list of schemas to include in the backup.
• -S schema_name – exclude tables qualified by a specified schema name from the backup. You can use the -S option multiple times.
• --exclude-schema-file=filename – specify a file containing schema names to exclude from the backup.

Only a set of tables or set of schemas can be specified. For example, the -s option cannot be specified with the -t option.