How to combine infotables and their meta data

Hi @slangley 

No, I just included the pertinent lines as the service is a lot longer.

I wrote separate test services to see if infotable union includes meta data.  Based on my tests, it seems that it does if it is not in a for loop.  The output of the code below included meta data.

let query = {
 "filters":{
 "type": "EQ",
 "fieldName": "key",
 "value": 55
 }
}; 

let infoT1 = Things["SomeDataTable"].QueryDataTableEntries({
	maxItems: undefined /* NUMBER */,
	values: undefined /* INFOTABLE */,
	query: query /* QUERY */,
	source: undefined /* STRING */,
	tags: undefined /* TAGS */
});

query = {
 "filters":{
 "type": "EQ",
 "fieldName": "key",
 "value": 60
 }
}; 

let infoT2 = Things["SomeDataTable"].QueryDataTableEntries({
	maxItems: undefined /* NUMBER */,
	values: undefined /* INFOTABLE */,
	query: query /* QUERY */,
	source: undefined /* STRING */,
	tags: undefined /* TAGS */
});

// result: INFOTABLE
var result = Resources["InfoTableFunctions"].Union({
	t1: infoT1 /* INFOTABLE */,
	t2: infoT2 /* INFOTABLE */
});

query = {
 "filters":{
 "type": "EQ",
 "fieldName": "key",
 "value": 70
 }
}; 

let infoT3 = Things["SomeDataTable"].QueryDataTableEntries({
	maxItems: undefined /* NUMBER */,
	values: undefined /* INFOTABLE */,
	query: query /* QUERY */,
	source: undefined /* STRING */,
	tags: undefined /* TAGS */
});

result = Resources["InfoTableFunctions"].Union({
	t1: result /* INFOTABLE */,
	t2: infoT3 /* INFOTABLE */
});

However, I noticed that when the infotable union occurs in a for loop, it does not include meta data.  The output of the code below did not include meta data.

var result = DataShapes["DataTableB.DS"].CreateValues();
let oneYearAgo = new Date() - 31536000000;
let infoTA = Things["DataTableA"].GetDataTableEntries({
	maxItems: 20 /* NUMBER */
});
let tableLength = infoTA.rows.length;
for (let x = 0; x < tableLength; x++) {
	let row = infoTA.rows[x];
	//Your code here

	let query = {
		"filters": {
			"type": "And",
			"filters": [{
					"type": "EQ",
					"fieldName": "SomeID",
					"value": row.SomeID
				},
				{
					"type": "LT",
					"fieldName": "SomeDate",
					"value": oneYearAgo
				}
			]
		}
	};

	let infoTB = Things["DataTableB"].QueryDataTableEntries({
		maxItems: undefined /* NUMBER */ ,
		values: undefined /* INFOTABLE */ ,
		query: query /* QUERY */ ,
		source: undefined /* STRING */ ,
		tags: undefined /* TAGS */
	});

	result = Resources["InfoTableFunctions"].Union({
		t1: result /* INFOTABLE */ ,
		t2: infoTB /* INFOTABLE */
	});
}