Collation

Collation allows users to specify language-specific rules for string comparison, such as rules for letter-case and accent marks.

struct Collation {

enum Alternate;

enum MaxVariable;

string locale;

Nullable!int strength;

Nullable!bool caseLevel;

Nullable!string caseFirst;

Nullable!bool numericOrdering;

Nullable!Alternate alternate;

Nullable!MaxVariable maxVariable;

Nullable!bool backwards;

Nullable!bool normalization;

}

Members

Enums

Alternate enum Alternate
MaxVariable enum MaxVariable

Variables

alternate Nullable!Alternate alternate;: Field that determines whether collation should consider whitespace and punctuation as base characters for purposes of comparison.
backwards Nullable!bool backwards;: Flag that determines whether strings with diacritics sort from back of the string, such as with some French dictionary ordering.
caseFirst Nullable!string caseFirst;: A flag that determines sort order of case differences during tertiary level comparisons.
caseLevel Nullable!bool caseLevel;: Flag that determines whether to include case comparison at strength level 1 or 2.
locale string locale;: The ICU locale
maxVariable Nullable!MaxVariable maxVariable;: Field that determines up to which characters are considered ignorable when alternate: "shifted". Has no effect if alternate: "non-ignorable"
normalization Nullable!bool normalization;: Flag that determines whether to check if text require normalization and to perform normalization. Generally, majority of text does not require this normalization processing.
numericOrdering Nullable!bool numericOrdering;: Flag that determines whether to compare numeric strings as numbers or as strings.
strength Nullable!int strength;: The level of comparison to perform. Corresponds to ICU Comparison Levels.

See Also

https://docs.mongodb.com/manual/reference/collation/

Meta

Source

See Implementation

index vibe db mongo collection functions

structs