Bug 131011 Support running query based on report document data
Data Engine should support running a query based on data set and expression data stored in a report document. This bugzilla entry serves as a repository for design docs and notes related to this feature.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutorUtil.java
colName = cre.getColumnName( );
		}
		return new ColumnInfo( colIndex, colName );
	}
	
	/**
	 * Simple wrapper of colum information, including column index and column
	 * name.
	 */
	public static class ColumnInfo
	{
		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;
		}
	}
	
}