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How do we migrate from existing Postgres database to EdgeDB? Can traditional app still access all the relational as before and new app access via EdgeDB? We're making use of existing environment and extending it with our own frontend. I would like to understand how I can mix legacy and new code.

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We plan to introduce a tool for assisting migration from SQL databases, but at this very moment, the only way to migrate an existing app is to re-create your DB schema in EdgeDB and then write a script to import the data. EdgeDB right now is definitely more geared towards starting new projects with it.

Maybe if you move all data to be managed by EdgeDB, then create a separate "legacy" schema that just contains views & triggers that forwards queries and mutations to the EdgeDB database.

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