Replying even though it is an old post .
I too faced a similar issue and tried to remove unwanted columns etc m, but it dint work.
The Issue was that for some columns the heading name displayed in share-point and SSIS was slightly different from the name that has to be used for CAML Query.
You can dowload the CAML Query helper @ https://spcamlqueryhelper.codeplex.com/ , Compare the column name and build/Test your query in it.
Eg : Field Name in Sharepoint : Building Name
Field Name to be used in CAML Query was : <FieldRef Name="Building_x0020_Name" />