Hi,
By default, the content index includes only values from text properties. So having aspace in mapping will not mess up the things. If you want to include values from properties that are not text properties, you can override the default behavior by changing the Mapped to content setting for the crawled properties. For more information, follow below msdn articles:
Map Crawled Properties
http://msdn.microsoft.com/en-us/library/ms551274.aspx
Searching Business Data
http://msdn.microsoft.com/en-us/library/ms549284.aspx
Best Regards,
Yogesh.