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The $text
operator is used to perform text search queries on a collection. The $text
operator enables searching for text within string fields that are indexed as a text index.
The basic syntax for the $text operator is:
{
$text: {
$search: <string>,
$language: <string>, // optional
$caseSensitive: <boolean>, // optional
$diacriticSensitive: <boolean> // optional
}
}
Parameter | Description |
---|---|
search |
The search string to query in the text index |
language |
Optional field to specify the language to be used for the search. The default value is "english" |
caseSensitive |
Optional boolean field to specify whether the search should be a case sensitive search. The default value is false |
diacriticSensitive |
Optional boolean field to specify whether the search should be diacritic-sensitive. The default value is false |
Consider this sample document from the stores collection in the StoreData database.
{
"_id": "0fcc0bf0-ed18-4ab8-b558-9848e18058f4",
"name": "First Up Consultants | Beverage Shop - Satterfieldmouth",
"location": {
"lat": -89.2384,
"lon": -46.4012
},
"staff": {
"totalStaff": {
"fullTime": 8,
"partTime": 20
}
},
"sales": {
"totalSales": 75670,
"salesByCategory": [
{
"categoryName": "Wine Accessories",
"totalSales": 34440
},
{
"categoryName": "Bitters",
"totalSales": 39496
},
{
"categoryName": "Rum",
"totalSales": 1734
}
]
},
"promotionEvents": [
{
"eventName": "Unbeatable Bargain Bash",
"promotionalDates": {
"startDate": {
"Year": 2024,
"Month": 6,
"Day": 23
},
"endDate": {
"Year": 2024,
"Month": 7,
"Day": 2
}
},
"discounts": [
{
"categoryName": "Whiskey",
"discountPercentage": 7
},
{
"categoryName": "Bitters",
"discountPercentage": 15
},
{
"categoryName": "Brandy",
"discountPercentage": 8
},
{
"categoryName": "Sports Drinks",
"discountPercentage": 22
},
{
"categoryName": "Vodka",
"discountPercentage": 19
}
]
},
{
"eventName": "Steal of a Deal Days",
"promotionalDates": {
"startDate": {
"Year": 2024,
"Month": 9,
"Day": 21
},
"endDate": {
"Year": 2024,
"Month": 9,
"Day": 29
}
},
"discounts": [
{
"categoryName": "Organic Wine",
"discountPercentage": 19
},
{
"categoryName": "White Wine",
"discountPercentage": 20
},
{
"categoryName": "Sparkling Wine",
"discountPercentage": 19
},
{
"categoryName": "Whiskey",
"discountPercentage": 17
},
{
"categoryName": "Vodka",
"discountPercentage": 23
}
]
}
]
}
Note
Using the $text operator requires all fields in the query filter to be specified as a text index during index creation.
db.stores.find({"$text": {"$search": "Ebba's Smart TVs"}}, {"_id": 1}, {"limit": 1})
This returns the following results:
{
"_id": "0fcc0bf0-ed18-4ab8-b558-9848e18058f4"
}
Note
By default, the text search functionality treats all word separators as tokenizers for the search query. In this example, the search query conducts a search on three separate tokens - "Ebba's," "Smart" and "TVs" and returns all documents that contain at least one of the three terms.
db.stores.find({"$text": {"$search": "\"Ebba's Smart TVs\""}}, {"_id": 1}, {"limit": 1})
This returns the following results:
{
"_id": "1grc25f8-7h65-3g7r-a443-0985w3244rd3"
}
Note
To avoid tokenizing the terms in the search string, quotation marks must enclose the string. In this example, the query conducts a search on a single token - "Ebba's Smart TVs" without separating the three words into individual tokens.