tests: added unknown_func test to pgx

Author: victoraugustolls

internal/endtoend/testdata/unknown_func/pgx/go/db.go

@@ -0,0 +1,13 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "postgresql",
+      "driver": "pgx/v4",
+      "name": "querytest",
+      "schema": "query.sql",
+      "queries": "query.sql"
+    }
+  ]
+}

…toend/testdata/unknown_func/go/models.go …d/testdata/unknown_func/pgx/go/models.gointernal/endtoend/testdata/unknown_func/go/models.go renamed to internal/endtoend/testdata/unknown_func/pgx/go/models.go internal/endtoend/testdata/unknown_func/go/models.go renamed to internal/endtoend/testdata/unknown_func/pgx/go/models.go

@@ -0,0 +1,3 @@
+CREATE TABLE foo (id text not null);
+-- name: ListFoos :one
+SELECT id FROM foo WHERE id = frobnicate($1);