When all other levels are equal, the identical level is used as a tiebreaker.
When all other levels are equal, the identical level is used as a tiebreaker. The Unicode code point values of the NFD form of each string are compared at this level, just in case there is no difference at levels 1-4
Strongest level, denote difference between base characters
When punctuation is ignored at level 1-3, an additional level can be used to distinguish words with and without punctuation.
Accents in characters are considered secondary differences
Upper and lower case differences in characters are distinguished at the tertiary level.
Upper and lower case differences in characters are distinguished at the tertiary level. The server default.
Returns the CollationStrength from the string value.
Returns the CollationStrength from the string value.
the int value.
the read concern
Collation support allows the specific configuration of how character cases are handled.
1.2
Requires MongoDB 3.4 or greater