How can I write a query that looks in all array entries? - azure-cosmosdb

Question

How do I write a CosmosDB query or SPR that allows me to look for an entry in all entries in an array? where each array entry is a complex datatype and not just a simple array?
I have tried using this query:
SELECT DISTINCT c.locales[0].categories[0] AS topLevelCategory
FROM c
WHERE c.locales[0].country = 'SE'
The problem is that I cannot gurantee that c.loclales[0] is always 'SE' some times that is the second or third entry in the array so I dont know what c.locales[X] should be where X represents the locale I need, for example if c.locales[0] is 'SE' then I wont get the hit I want because 'SE' happens to be c.locales[1]
How can get around this limitation? I need to be able to first apply the country = 'SE' to get the correct array entry and then after that get the categories from that array entry.
I just cannot figure out how this can be done?
Sample document below and expected output would be
"Herr" in whatever output format is easiest.
{
"id": "0570eca0-8f16-4c85-a985-e3a271bcc6bc",
"_id": "5b07c2bfbc7407000122e8b4",
"artno": "0614460008",
"vendor": "Acme",
"updatedAt": "2019-06-25T18:50:33.167Z",
"locales": [
{
"title": "Gestreiftes T-Shirt",
"description": "Gestreiftes T-Shirt aus Baumwolljersey.",
"categories": [
"Herren",
"Große Größen",
"T-Shirts & Tanktops",
"T-Shirt"
],
"brand": null,
"images": [
],
"country": "DE",
"currency": "EUR",
"language": "de",
"variants": [
{
"artno": "0614460008005",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "XL",
"color": "Schwarz/Weiß gestreift"
}
},
{
"artno": "0614460008002",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "S",
"color": "Schwarz/Weiß gestreift"
}
},
{
"artno": "0614460008004",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "L",
"color": "Schwarz/Weiß gestreift"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "XS",
"color": "Schwarz/Weiß gestreift"
}
},
{
"artno": "0614460008006",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "XXL",
"color": "Schwarz/Weiß gestreift"
}
},
{
"artno": "0614460008003",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "M",
"color": "Schwarz/Weiß gestreift"
}
}
]
},
{
"title": "Striped T-shirt",
"description": "Striped T-shirt in cotton jersey.",
"categories": [
"Men",
"T-shirts & Vests",
"Short Sleeve",
"T-shirt"
],
"brand": null,
"images": [
],
"country": "UK",
"currency": "GBP",
"language": "en",
"variants": [
{
"artno": "0614460008006",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "XXL",
"color": "Black/White striped"
}
},
{
"artno": "0614460008005",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "XL",
"color": "Black/White striped"
}
},
{
"artno": "0614460008004",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "L",
"color": "Black/White striped"
}
},
{
"artno": "0614460008002",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "S",
"color": "Black/White striped"
}
},
{
"artno": "0614460008003",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "M",
"color": "Black/White striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 8.99,
"stock": 1,
"attributes": {
"size": "XS",
"color": "Black/White striped"
}
}
]
},
{
"title": "Randig t-shirt",
"description": "En randig t-shirt i bomullstrikå.",
"categories": [
"Herr",
"T-shirts & Linnen",
"Kortärmat",
"T-shirt"
],
"brand": null,
"images": [
],
"country": "SE",
"currency": "SEK",
"language": "sv",
"variants": [
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "XS",
"color": "Svart/Vitrandig"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "XL",
"color": "Svart/Vitrandig"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "S",
"color": "Svart/Vitrandig"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "XXL",
"color": "Svart/Vitrandig"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "M",
"color": "Svart/Vitrandig"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 99,
"stock": 1,
"attributes": {
"size": "L",
"color": "Svart/Vitrandig"
}
}
]
},
{
"title": "Striped T-shirt",
"description": "Striped T-shirt in cotton jersey.",
"categories": [
"Men",
"T-shirts & Tank tops",
"Short Sleeves",
"T-shirt"
],
"brand": null,
"images": [
],
"country": "US",
"currency": "USD",
"language": "en",
"variants": [
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 0,
"attributes": {
"size": "S",
"color": "Black/white striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 0,
"attributes": {
"size": "XL",
"color": "Black/white striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 0,
"attributes": {
"size": "M",
"color": "Black/white striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 0,
"attributes": {
"size": "L",
"color": "Black/white striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 0,
"attributes": {
"size": "XXL",
"color": "Black/white striped"
}
},
{
"artno": "0614460008001",
"urls": [
],
"price": 9.99,
"stock": 1,
"attributes": {
"size": "XS",
"color": "Black/white striped"
}
}
]
}
],
"relatedArtno": [
"0614460001",
"0614460002",
"0614460005",
"0614460006",
"0614460007",
"0614460011",
"0614460012"
],
"_rid": "QEwcAMCVWqgGAAAAAAAAAA==",
"_self": "dbs/QEwcAA==/colls/QEwcAMCVWqg=/docs/QEwcAMCVWqgGAAAAAAAAAA==/",
"_etag": "\"2e00f1ca-0000-0c00-0000-5d144d660000\"",
"_attachments": "attachments/",
"_ts": 1561611622
}

Answer 1

Use Join in your sql:
SELECT locales.categories[0] AS topLevelCategory
FROM c
join locales in c.locales
WHERE locales.country = 'SE'
Output:
Update Answer:
Two points.
One,your locales is also an array so you can't access categories with c.locales.categories.You need to query categories using c.locales[index].categories.
Two,Array_contains has third param. If you want to filter array with partial conditions,you need to add third param as false.
ARRAY_CONTAINS(c.locales[index].categories[0], 'kids',true)
More details,please refer to the document.