storage.md

State Storage

Stateful functions (notably distributed aggregates) persist per-group state through a FunctionStorage backend so it survives across worker invocations and processes. The default is SQLite; Azure SQL and Cloudflare Durable Object backends are available for multi-worker deployments.

Function storage

::: vgi.function_storage

Azure SQL backend

Requires pip install vgi-python[azure].

::: vgi.function_storage_azure_sql

Cloudflare Durable Object backend

::: vgi.function_storage_cf_do