Bug 195970 Two issues when evaluate a query inlcuding a subquery[07]
Description: Currently, when evaluating a query which includes a subquery, the query will be evaluated twice. The binding of query will pass to subquery twice. If user write a java script such as new Date() and i++. The result of query will be incorrect. Another issue: when write the report document, the binding of query will be written twice and the performance is not good to evalulate it twice.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
}
	
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#moveTo(int)
	 */
	public void moveTo( int rowIndex ) throws BirtException
	{
		checkStarted( );
		
		if ( state == BEFORE_FIRST_ROW )
		{
			clear( );
			this.prepareCurrentRow( );
			state = ON_ROW;
		}
		int currRowIndex = odiResult.getCurrentResultIndex( );
		
		if ( rowIndex < 0 || rowIndex >= this.odiResult.getRowCount( ) )
			throw new DataException( ResourceConstants.INVALID_ROW_INDEX,
					new Integer( rowIndex ) );
		else if ( rowIndex < currRowIndex )
			throw new DataException( ResourceConstants.BACKWARD_SEEK_ERROR );
		else if ( rowIndex == currRowIndex )
			return;
		int gapRows = rowIndex - currRowIndex;
		for ( int i = 0; i < gapRows; i++ )
			this.next( );
	}
	
	/**