=== Parameters * key = format_primary_key description: Format for primary key constraints default: pk_[a-zA-Z]{plus}{plus} key: format_null description: Format for null constraints default: nk_[a-zA-Z]{plus}{plus} key: format_unique description: Format for unique constraints default: uk_[a-zA-Z]{plus}{plus} key: format_check description: Format for check constraints default: ck_[a-zA-Z]{plus}{plus} key: format_foreign_key description: Format for foreign key constraints default: fk_[a-zA-Z]{plus}{plus}