tests: added overrides_nullable pgx test

Author: victoraugustolls

internal/endtoend/testdata/overrides_nullable/postgresql/pgx/go/db.go

@@ -0,0 +1,29 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "postgresql",
+      "driver": "pgx/v4",
+      "name": "querytest",
+      "schema": "query.sql",
+      "queries": "query.sql"
+    }
+  ],
+  "overrides": [
+    {
+      "db_type": "name",
+      "go_type": "github.com/jackc/pgtype.Name"
+    },
+    {
+      "db_type": "name",
+      "go_type": "github.com/jackc/pgtype.Name",
+      "nullable": true
+    },
+    {
+      "db_type": "text",
+      "go_type": "github.com/jackc/pgtype.Text",
+      "null": true
+    }
+  ]
+}

internal/endtoend/testdata/overrides_nullable/go/models.go renamed to internal/endtoend/testdata/overrides_nullable/postgresql/pgx/go/models.go

@@ -0,0 +1,8 @@
+CREATE TABLE foo (
+  bar text,
+  bam name,
+  baz name not null
+);
+
+-- name: ListFoo :many
+SELECT * FROM foo;

internal/endtoend/testdata/overrides_nullable/postgresql/pgx/go/query.sql.go

@@ -2,8 +2,8 @@
   "version": "1",
   "packages": [
     {
-      "engine": "postgresql",
       "path": "go",
+      "engine": "postgresql",
       "name": "querytest",
       "schema": "query.sql",
       "queries": "query.sql"