rangeVar.indexCondition.getLeftNode().getDataType();
int exprType = rangeVar.indexCondition.getType();
int range = 0;
if (targetType != valueType) {
range = targetType.compareToTypeRange(value);
}
if (range == 0) {
value = targetType.convertToType(session, value, valueType);
it = rangeVar.rangeIndex.findFirstRow(session, store, value,