c.name = name
	c.remove = true
	c.processor.callbacks = append(c.processor.callbacks, c)
	return c.processor.compile()
}

func (c *callback) Replace(name string, fn func(*DB)) error {
	c.processor.db.Logger.Info(context.Background(), "replacing callback `%s` from %s\n", name, utils.FileWithLineNum())
	c.name = name
	c.handler = fn
	c.replace = true

			t.Fatalf("%v: failed to parse schema, got error: %v", utils.FileWithLineNum(), err)
		}
		_ = stmt.Schema.ParseIndexes()
		field := stmt.Schema.LookUpField(fieldName)
		if field == nil {
			t.Fatalf("%v: failed to find column %q", utils.FileWithLineNum(), fieldName)
		}
		if field.Unique != unique {
			t.Fatalf("%v: %q column %q unique should be %v but got %v", utils.FileWithLineNum(), stmt.Schema.Table, fieldName, unique, field.Unique)