Implement IntersectsBbox to translate PostGIS && operator

[bjornharrtell]

Attempt to implement a DbFunction to translate into PostGIS && operator.

Not working yet.

[bjornharrtell]

I'm getting test failure:

Npgsql.EntityFrameworkCore.PostgreSQL.Query.SpatialQueryNpgsqlGeometryTest.IntersectsBbox(async: False) (24ms): Error Message: System.InvalidOperationException : The 'IntersectsBbox' method is not supported because the query has switched to client-evaluation. This usually happens when the arguments to the method cannot be
translated to server. Rewrite the query to avoid client evaluation of arguments so that method can be translated to server.

But at the same time I see:

SQL sent to the database:
       @__polygon_1='POLYGON ((0 0, 1 0, 0 1, 0 0))' (DbType = Object)
       
       SELECT p."Id", p."Polygon" && @__polygon_1 AS "IntersectsBbox"
       FROM "PolygonEntity" AS p

The generated SQL looks fine... so I'm quite confused about why the test is failing with what looks like something that should block SQL generation!?

[bjornharrtell]

I understand now, in the case of DbFunction extensions I need to emulate a client side query in the test case. Should be foxed now.