[lmz]

> Would supporting Postgres wire compatibility guarantee any Postgres extension would also work?

It would not, for obvious reasons.

[SOLAR_FIELDS]

Care to elaborate? The reasons are not obvious

[dumah]

Wire protocol applies to external interaction with the db.

Internal ABI/API is used by extensions to directly interact with core subsystems and depends on internal models for things like storage.

It might be analogous to HTTP versus an nginx plugin.

[SOLAR_FIELDS]

curious how hard it is to implement wire protocol compatibility vs the internal api surface. Are we talking like, an order of magnitude more work here? I wonder if, for example, Aurora team are literally maintaining forks of extensions for their implementation and that's why only a subset of all possible extensions are supported?