Bug 128359 The logic is not correctly when a filter is added to the table on the layout
Description: The logic is not correctly when a filter is added to the table on the layout Steps to reproduce: Let me give an example. 1. Creat a report, new a datasource and a dataset 2. We consume that the dataset has 10 records(DataResult_A) . We set a filter(Filter_A) in the dataset, and then the 6 records of the dataset(DataResult_B) are gained. 3. Drag the dataset to the layout, and set another filter(Filter_B) on the table. Actual result: The result of Filter_B is based on DataResult_A. Expect result: The result of Filter_B should be based on DataResult_B.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedQuery.java
{
		private int columnIndex;
		private String columnName;
		ColumnInfo( int columnIndex, String columnName )
		{
			this.columnIndex = columnIndex;
			this.columnName = columnName;
		}
		public int getColumnIndex( )
		{
			return columnIndex;
		}
		public String getColumnName( )
		{
			return columnName;
		}
	}
	
}