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---
stage: Package
group: Package Registry
info: Any user with at least the Maintainer role can merge updates to this content. For details, see https://docs.gitlab.com/ee/development/development_processes.html#development-guidelines-review.
---
# Package Structure
## Package registry
```mermaid
erDiagram
projects }|--|| namespaces : ""
packages_package_files }o--|| packages_packages : ""
packages_package_file_build_infos }o--|| packages_package_files : ""
packages_build_infos }o--|| packages_packages : ""
packages_tags }o--|| packages_packages : ""
packages_packages }|--|| projects : ""
packages_maven_metadata |o--|| packages_packages : ""
packages_nuget_metadata |o--|| packages_packages : ""
packages_composer_metadata |o--|| packages_packages : ""
packages_conan_metadata |o--|| packages_packages : ""
packages_pypi_metadata |o--|| packages_packages : ""
packages_npm_metadata |o--|| packages_packages : ""
package_conan_file_metadatum |o--|| packages_package_files : ""
package_helm_file_metadatum |o--|| packages_package_files : ""
packages_nuget_dependency_link_metadata |o--|| packages_dependency_links: ""
packages_dependencies ||--o| packages_dependency_links: ""
packages_packages ||--o{ packages_dependency_links: ""
namespace_package_settings |o--|| namespaces: ""
```
### Debian packages
Debian contains a higher number of dedicated tables, so it is displayed here separately:
```mermaid
erDiagram
projects }|--|| namespaces : ""
packages_packages }|--|| projects : ""
packages_package_files }o--|| packages_packages : ""
packages_debian_group_architectures }|--|| packages_debian_group_distributions : ""
packages_debian_group_component_files }|--|| packages_debian_group_components : ""
packages_debian_group_component_files }|--|| packages_debian_group_architectures : ""
packages_debian_group_components }|--|| packages_debian_group_distributions : ""
packages_debian_group_distribution_keys }|--|| packages_debian_group_distributions : ""
packages_debian_group_distributions }o--|| namespaces : ""
packages_debian_project_architectures }|--|| packages_debian_project_distributions : ""
packages_debian_project_component_files }|--|| packages_debian_project_components : ""
packages_debian_project_component_files }|--|| packages_debian_project_architectures : ""
packages_debian_project_components }|--|| packages_debian_project_distributions : ""
packages_debian_project_distribution_keys }|--|| packages_debian_project_distributions : ""
packages_debian_project_distributions }o--|| projects : ""
packages_debian_publications }|--|| packages_debian_project_distributions : ""
packages_debian_publications |o--|| packages_packages : ""
packages_debian_project_distributions |o--|| packages_packages : ""
packages_debian_group_distributions |o--|| namespaces : ""
packages_debian_file_metadata |o--|| packages_package_files : ""
```
## Container registry
```mermaid
erDiagram
projects }|--|| namespaces : ""
container_repositories }|--|| projects : ""
container_expiration_policy |o--|| projects : ""
```
## Dependency Proxy
```mermaid
erDiagram
dependency_proxy_blobs }o--|| namespaces : ""
dependency_proxy_manifests }o--|| namespaces : ""
dependency_proxy_image_ttl_group_policies |o--|| namespaces : ""
dependency_proxy_group_settings |o--|| namespaces : ""
```
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