error importing xml with xsd: xsd too big (more than 500MB)

Problem :
When creating an xml source using an xsd, I am getting an error
saying that the xsd used is too big. It lets me complete the
import but the source is not valid. When trying to validate, I
get the following error message: "ThisXML definition is too
large. The total length of all columns must not exceed 500
MB""The XML definition is not valid"

Solve
In source analyzr open the source in edit xml mode (in xml editor) then
goto TOOLS.....>OPTIONS....>Override all infinite lengths with value(tik
this option and set the value to 200 or less)