if (papszFieldTypesToString != null &&
(CSLFindString(papszFieldTypesToString, "All") != -1 ||
CSLFindString(papszFieldTypesToString,
ogr.GetFieldTypeName(poSrcFDefn.GetFieldDefn(iSrcField).GetFieldType())) != -1))
oFieldDefn.SetType(ogr.OFTString);
/* The field may have been already created at layer creation */
int iDstField = -1;
if (poDstFDefn != null)
iDstField = poDstFDefn.GetFieldIndex(oFieldDefn.GetNameRef());