title: OIC - Microsoft SQL Server Connector Error when used Merge Operation
body: <p>I tried to use the merge operation with Microsoft SQL Server connector. When I send the PK to database sql server for update the record, I get this error:</p>
  <p>Error Summary:</p>
  <blockquote>
  <p>ICS runtime execution encountered {http://schemas.oracle.com/bpel/extension}remoteFault while executing operation: merge Error Reason: oracle.tip.adapter.sa.api.JCABindingException: DBWriteInteractionSpec Execute Failed Exception.
  merge failed. Descriptor name: [testUpsert.Articolo].
  Caused by Exception [EclipseLink-3002] (Eclipse Persistence Services - 2.6.5.v20170607-b3d05bd): org.eclipse.persistence.exceptions.ConversionException
  Exception Description: The object [[B@9faeb15], of class [class [B], from mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[SysTimestamp--&gt;Articolo.SysTimestamp]] with descriptor [ObjectRelationalDataTypeDescriptor(testUpsert.Articolo --&gt; [DatabaseTable(Articolo)])], could not be converted to [class java.lang.Integer]..
  Please see the logs for the full DBAdapter logging output prior to this exception. This exception is considered not retriable, likely due to a modelling mistake.</p>
  </blockquote>
  <p>Exception Description:</p>
  <blockquote>
  <p>The object [[B@9faeb15], of class [class [B], from mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[SysTimestamp--&gt;Articolo.SysTimestamp]] with descriptor [ObjectRelationalDataTypeDescriptor(testUpsert.Articolo --&gt; [DatabaseTable(Articolo)])], could not be converted to [class java.lang.Integer].Fault Details :
  &lt;err:serviceInvocationError xmlns:err=&quot;http://xmlns.oracle.com/cloud/generic/service/fault&quot;&gt;
  err:typeDBWriteInteractionSpec Execute Failed Exception&lt;/err:type&gt;
  err:titlemerge failed. Descriptor name: [testUpsert.Articolo].&lt;/err:title&gt;
  err:detailCaused by Exception [EclipseLink-3002] (Eclipse Persistence Services - 2.6.5.v20170607-b3d05bd): org.eclipse.persistence.exceptions.ConversionException
  Exception Description: The object [[B@9faeb15], of class [class [B], from mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[SysTimestamp--&gt;Articolo.SysTimestamp]] with descriptor [ObjectRelationalDataTypeDescriptor(testUpsert.Articolo --&gt; [DatabaseTable(Articolo)])], could not be converted to [class java.lang.Integer]..&lt;/err:detail&gt;
  err:errorCodeserviceInvocationError&lt;/err:errorCode&gt;
  err:remedialActionPlease see the logs for the full DBAdapter logging output prior to this exception.&lt;/err:remedialAction&gt;
  &lt;/err:serviceInvocationError&gt;</p>
  </blockquote>
  <p>Error Code:</p>
  <blockquote>
  <p>merge {http://schemas.oracle.com/bpel/extension}runtimeFault</p>
  </blockquote>
  <p>Somebody know if is supported by Microsoft SQL Server like operation?</p>