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Oct 15, 2026
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Document Daitch-Mokotoff translation #472

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9 changes: 6 additions & 3 deletions conceptual/EFCore.PG/mapping/translations.md
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Expand Up @@ -234,12 +234,13 @@ EF.Functions.TrigramsStrictWordSimilarityDistanceInverted(s1, s2) | s1 <->

## Fuzzy string match functions

The below translations provide functionality for determining similarities and distance between strings, using the [`pg_trgm`](https://www.postgresql.org/docs/current/pgtrgm.html) extension which is bundled with standard PostgreSQL distributions.
The below translations provide functionality for determining similarities and distance between strings, using the [`fuzzystrmatch`](https://www.postgresql.org/docs/current/fuzzystrmatch.html) extension which is bundled with standard PostgreSQL distributions.

.NET | SQL
------------------------------------------------------------------------------------------------------ | --------------------
.NET | SQL | Notes
------------------------------------------------------------------------------------------------------ | -------------------- | -----
EF.Functions.FuzzyStringMatchSoundex(text) | [soundex(text)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-SOUNDEX)
EF.Functions.FuzzyStringMatchDifference(source, target) | [difference(source, target)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-SOUNDEX)
EF.Functions.FuzzyStringMatchDaitchMokotoff(text) | [daitch_mokotoff(text)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-DAITCH-MOKOTOFF) | Added in 11.0. Requires PostgreSQL 16+
EF.Functions.FuzzyStringMatchLevenshtein(source, target) | [levenshtein(source, target)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-LEVENSHTEIN)
EF.Functions.FuzzyStringMatchLevenshtein(source, target, ins_cost, del_cost, sub_cost) | [levenshtein(source, target, ins_cost, del_cost, sub_cost)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-LEVENSHTEIN)
EF.Functions.FuzzyStringMatchLevenshteinLessEqual(source, target, max_d) | [levenshtein(source, target, max_d)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-LEVENSHTEIN)
Expand All @@ -248,6 +249,8 @@ EF.Functions.FuzzyStringMatchMetaphone(text, max_output_length)
EF.Functions.FuzzyStringMatchDoubleMetaphone(text) | [dmetaphone(text)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-METAPHONE)
EF.Functions.FuzzyStringMatchDoubleMetaphoneAlt(text) | [dmetaphone_alt(text)](https://www.postgresql.org/docs/current/fuzzystrmatch.html#FUZZYSTRMATCH-METAPHONE)

`FuzzyStringMatchDaitchMokotoff` returns `string[]?`, with `null` possible for inputs without encodable characters, including empty strings. Projection and array indexing are supported, but composing `Contains`, `Any`, `Intersect(...).Any()`, or `.Length` on the result is not currently translated ([dotnet/efcore#35980](https://github.com/dotnet/efcore/issues/35980)).

## LTree functions

The below translations are for working with label trees from the PostgreSQL [`ltree`](https://www.postgresql.org/docs/current/ltree.html) extension. Use the <xref:Microsoft.EntityFrameworkCore.LTree> type to represent ltree and invoke methods on it in EF Core LINQ queries.
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