Allow REPLACE

src/scope.rs

@@ -282,6 +282,7 @@ RAND = Fn() -> FLOAT64;
 RANK = FnOver() -> INT64;
 REGEXP_EXTRACT = Fn(STRING, STRING) -> STRING;
 REGEXP_REPLACE = Fn(STRING, STRING, STRING) -> STRING;
+REPLACE = Fn(STRING, STRING, STRING) -> STRING;
 ROW_NUMBER = FnOver() -> INT64;
 SHA256 = Fn(STRING) -> BYTES;
 SUM = FnAgg(Agg<INT64>) -> INT64 | FnAgg(Agg<FLOAT64>) -> FLOAT64

tests/sql/functions/simple/replace.sql

@@ -0,0 +1,11 @@
+-- pending: sqlite3 Probably exists, but haven't checked.
+
+CREATE OR REPLACE TABLE __result1 AS
+SELECT
+    replace('hello world', 'world', 'universe') AS replace1;
+
+CREATE OR REPLACE TABLE __expected1 (
+    replace1 STRING
+);
+INSERT INTO __expected1 VALUES
+    ('hello universe');