Avoid panic when decoding an array of tuple with nullable properties …

[stephane-moreau]

Following a debugging session of issue #816

It seems that the proposed change do fix the issue

[CLAassistant]

All committers have signed the CLA.

[gingerwizard]

@stephane-moreau can you sign the CLA?

[stephane-moreau]

@stephane-moreau can you sign the CLA?

Validation is in progress with my company, should be ok soon

[stephane-moreau]

@stephane-moreau can you sign the CLA?

done

[gingerwizard]

I think this is very close @stephane-moreau but I think we need to insert nils if nullable i.e.

if _, isNullable := c.(*Nullable); !isNullable {
					targetMap.SetMapIndex(reflect.ValueOf(colName), reflect.Zero(c.ScanType().Elem()))
				} else {
					targetMap.SetMapIndex(reflect.ValueOf(colName), reflect.Zero(c.ScanType()))
				}

I'm going to merge and follow up with a small PR and test. Thanks again.