typesense automatic field duplication in schema when using object[]

[sahilchauhan123]

this is my product schema and i didnt created any duplicated fields in it even typesense doenst allow it .

but when i see collection schema after inserting 1 doc it automatically created duplicates nested fields . why is this weird behavior or please tell me if i am doing something wrong
duplicated fields are of {Name: "parent_category_ids", Type: "object[]"},

Product Collection Schema

`productSchema := api.CollectionSchema{
Name: "products",
EnableNestedFields: pointer.True(),
Fields: []api.Field{
{Name: "id", Type: "string"},

		// Core product fields
		{Name: "title", Type: "string"},
		{Name: "description", Type: "string", Optional: pointer.True()},
		{Name: "points", Type: "int32", Sort: pointer.True(), Optional: pointer.True(), Facet: pointer.True()},
		{Name: "picture_url", Type: "object[]", Optional: pointer.True()},

		// Category hierarchy (very useful for browsing & faceting)
		{Name: "category_id", Type: "string", Facet: pointer.True(), Optional: pointer.True()},
		{Name: "category_name", Type: "string", Facet: pointer.True()},
		{Name: "category_slug", Type: "string", Facet: pointer.True(), Optional: pointer.True()},
		{Name: "parent_category_ids", Type: "object[]"},

		// Seller & status
		{Name: "seller_id", Type: "string", Facet: pointer.True(), Optional: pointer.True()},
		{Name: "seller_name", Type: "string", Optional: pointer.True()},
		{Name: "seller_location", Type: "string", Optional: pointer.True()},
		{Name: "is_active", Type: "bool", Facet: pointer.True()},

		// Location
		{Name: "location", Type: "geopoint", Sort: pointer.True(), Optional: pointer.True()},
		{Name: "country", Type: "string", Facet: pointer.True(), Optional: pointer.True()},
		{Name: "city", Type: "string", Facet: pointer.True(), Optional: pointer.True()},
		{Name: "state", Type: "string", Facet: pointer.True(), Optional: pointer.True()},

		// Pricing (important for range filtering & faceting)
		{Name: "min_price", Type: "float", Facet: pointer.True(), Sort: pointer.True(), RangeIndex: pointer.True(), Optional: pointer.True()},
		{Name: "max_price", Type: "float", Facet: pointer.True(), Sort: pointer.True(), RangeIndex: pointer.True(), Optional: pointer.True()},

		// 🔥 Main field for all dynamic attributes (from your product_attributes table)
		{Name: "attributes", Type: "string[]", Facet: pointer.True(), Optional: pointer.True()},
		// Stored as: ["Material:Stainless Steel", "GSM:180", "Power:7.5 HP", "Voltage:415V", ...]

		// Optional: Store raw attributes for easy Product Detail Page (PDP) display
		{Name: "raw_attributes", Type: "object", Index: pointer.False(), Optional: pointer.True()},

		// Timestamps for sorting (newest, etc.)
		{Name: "created_at", Type: "int64", Sort: pointer.True()},
	},
	DefaultSortingField: pointer.String("created_at"),
}`

Product Schema after inserting 1 doc
{ "created_at": 1775283607, "curation_sets": [], "default_sorting_field": "", "enable_nested_fields": true, "fields": [ { "facet": true, "index": true, "infix": false, "locale": "", "name": "country", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "city", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "state", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "min_price", "optional": true, "range_index": true, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "float" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "max_price", "optional": true, "range_index": true, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "float" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "attributes", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": false, "infix": false, "locale": "", "name": "raw_attributes", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "object" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "created_at", "optional": false, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "int64" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.slug", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.position", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "int64[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.name", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.id", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "location", "optional": true, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "geopoint" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "is_active", "optional": false, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "bool" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "seller_location", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "seller_name", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "seller_id", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids", "optional": false, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "object[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.id", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.slug", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.position", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "int64[]" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "parent_category_ids.name", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string[]" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "category_slug", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "category_name", "optional": false, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "category_id", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": true, "index": true, "infix": false, "locale": "", "name": "points", "optional": true, "sort": true, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "int32" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "description", "optional": true, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" }, { "facet": false, "index": true, "infix": false, "locale": "", "name": "title", "optional": false, "sort": false, "stem": false, "stem_dictionary": "", "store": true, "truncate_len": 100, "type": "string" } ], "name": "products", "num_documents": 1, "symbols_to_index": [], "synonym_sets": [], "token_separators": [] }

Doc that i inserted

[ { "attributes": [ "Color:Blue" ], "category_name": "Keypad Mobile", "category_slug": "keypad-mobile", "created_at": 1775288386, "description": "Good Phone", "id": "c5b821e5-2b16-477d-953f-ee2faad03559", "is_active": true, "min_price": 2000, "parent_category_ids": [ { "id": "8ebf6ffb-61cb-4588-ac46-99ae8f0c3075", "name": "Electronics & Appliances", "position": 0, "slug": "electronics-&-appliances" }, { "id": "102a1f22-2afa-40b9-b6bc-efd212f72df3", "name": "Phones", "position": 1, "slug": "phones" } ], "raw_attributes": { "Color": "Blue" }, "seller_id": "1", "title": "Nokia 3310 Body Cover " } ]

[tharropoulos]

What version of Typesense is this on?

[sahilchauhan123]

What version of Typesense is this on?

30.1 (latest)

[tharropoulos]

Are the duplicates coming from direct curl calls or through the go lib?

[sahilchauhan123]

Are the duplicates coming from direct curl calls or through the go lib?

also go lib and this
https://bfritscher.github.io/typesense-dashboard/ (uses typesense server api)

both showed same thing

and the collection schema which i pasted i took it from the collection api called by above mentioned client website . so i opened network tab and copied the res from collection api

[tharropoulos]

I reproduced this with raw curl and the official Go client on Typesense 30.1, and I could only reproduce nested field expansion, not duplicate field names. Without a reproducible example, this is really hard to debug further.