Bug 213959 [Regression]Blob computed column doesn't work
Description: [Regression]Blob type computed column doesn't work Build number: 2.3.0.v20071228-1005 Steps to reproduce: 1, New a sampleDB from table PRODUCTLINE 2, New a computed column A; type is Blob; expression is row["IMAGE"] 3, Preview in dataset Expected result: The dataset can be preview ok Actual result: Error happened Error log: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Data Engine Plug-in ID:org.eclipse.birt.data Version:2.3.0.v20071228-1005 Error Code:data.engine.CompCol.FailRetrieveValueComputedColumn Error Message:Fail to compute value for computed column "AAA". Can not convert the value of [B@1a9efcd to Blob type.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
int marker;
		
		if ( s == null )
			throw new java.lang.IllegalArgumentException( );
		firstColon = s.indexOf( ':' );
		secondColon = s.indexOf( ':', firstColon + 1 );
		for ( marker = secondColon + 1; marker < s.length( ); marker++ )
		{
			if ( !isDigitTen( s.charAt( marker ) ) )
				break;
		}
		addHour = 0;
		String markerValue = null;
		if ( marker < s.length( ) )
		{
			markerValue = s.substring( marker ).trim( );
			if ( "am".compareToIgnoreCase( markerValue ) == 0 )
			{
				addHour = 0;
			}
			else if ( "pm".compareToIgnoreCase( markerValue ) == 0 )
			{
				addHour = 12;
			}
			else
			{
				throw new java.lang.IllegalArgumentException( );
			}
		}
		if ( firstColon <= 0  ||