Pg to bun (#148)

* start moving to bun

* changing more stuff

* more

* and yet more

* tests passing

* seems stable now

* more big changes

* small fix

* little fixes

vendor/github.com/go-pg/pg/v10/internal/util.go

@@ -1,71 +0,0 @@
-package internal
-
-import (
-	"context"
-	"reflect"
-	"time"
-)
-
-func Sleep(ctx context.Context, dur time.Duration) error {
-	t := time.NewTimer(dur)
-	defer t.Stop()
-
-	select {
-	case <-t.C:
-		return nil
-	case <-ctx.Done():
-		return ctx.Err()
-	}
-}
-
-func MakeSliceNextElemFunc(v reflect.Value) func() reflect.Value {
-	if v.Kind() == reflect.Array {
-		var pos int
-		return func() reflect.Value {
-			v := v.Index(pos)
-			pos++
-			return v
-		}
-	}
-
-	elemType := v.Type().Elem()
-
-	if elemType.Kind() == reflect.Ptr {
-		elemType = elemType.Elem()
-		return func() reflect.Value {
-			if v.Len() < v.Cap() {
-				v.Set(v.Slice(0, v.Len()+1))
-				elem := v.Index(v.Len() - 1)
-				if elem.IsNil() {
-					elem.Set(reflect.New(elemType))
-				}
-				return elem.Elem()
-			}
-
-			elem := reflect.New(elemType)
-			v.Set(reflect.Append(v, elem))
-			return elem.Elem()
-		}
-	}
-
-	zero := reflect.Zero(elemType)
-	return func() reflect.Value {
-		if v.Len() < v.Cap() {
-			v.Set(v.Slice(0, v.Len()+1))
-			return v.Index(v.Len() - 1)
-		}
-
-		v.Set(reflect.Append(v, zero))
-		return v.Index(v.Len() - 1)
-	}
-}
-
-func Unwrap(err error) error {
-	u, ok := err.(interface {
-		Unwrap() error
-	})
-	if !ok {
-		return nil
-	}
-	return u.Unwrap()
-}