The PostgresMLEmbeddingModel autoconfiguration previously always executed
"CREATE EXTENSION IF NOT EXISTS pgml" on startup. This could cause issues
for users without superuser privileges or those who manage extensions
through other means.
Added a new configuration property 'createExtension' (default false) to
make this behavior optional. Users can now explicitly enable extension
creation when needed.
Updated documentation to explain the new configuration option and its
implications for deployment.
c02d13647e