1 files changed, 45 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/canonicalize.sql b/tests/fixtures/optimizer/canonicalize.sql
index 954b1c1..302acb9 100644
--- a/tests/fixtures/optimizer/canonicalize.sql
+++ b/tests/fixtures/optimizer/canonicalize.sql
@@ -10,15 +10,27 @@ SELECT CAST(1 AS VARCHAR) AS "a" FROM "w" AS "w";
 SELECT CAST(1 + 3.2 AS DOUBLE) AS a FROM w AS w;
 SELECT 1 + 3.2 AS "a" FROM "w" AS "w";
 
+SELECT '1' + 1 AS "col";
+SELECT '1' + 1 AS "col";
+
+SELECT '1' + '1' AS "col";
+SELECT CONCAT('1', '1') AS "col";
+
 SELECT CAST('2022-01-01' AS DATE) + INTERVAL '1' day;
 SELECT CAST('2022-01-01' AS DATE) + INTERVAL '1' day AS "_col_0";
 
+SELECT CAST('2022-01-01' AS DATE) IS NULL AS "a";
+SELECT CAST('2022-01-01' AS DATE) IS NULL AS "a";
+
 --------------------------------------
 -- Ensure boolean predicates
 --------------------------------------
 SELECT a FROM x WHERE b;
 SELECT "x"."a" AS "a" FROM "x" AS "x" WHERE "x"."b" <> 0;
 
+SELECT NOT b FROM x;
+SELECT NOT "x"."b" <> 0 AS "_col_0" FROM "x" AS "x";
+
 SELECT a FROM x GROUP BY a HAVING SUM(b);
 SELECT "x"."a" AS "a" FROM "x" AS "x" GROUP BY "x"."a" HAVING SUM("x"."b") <> 0;
 
@@ -46,8 +58,41 @@ CAST('2023-01-01' AS TIMESTAMP);
 TIMESTAMP('2023-01-01', '12:00:00');
 TIMESTAMP('2023-01-01', '12:00:00');
 
+--------------------------------------
+-- Coerce date function args
+--------------------------------------
+'2023-01-01' + INTERVAL '1' DAY;
+CAST('2023-01-01' AS DATE) + INTERVAL '1' DAY;
+
+'2023-01-01' + INTERVAL '1' HOUR;
+CAST('2023-01-01' AS DATETIME) + INTERVAL '1' HOUR;
+
+'2023-01-01 00:00:01' + INTERVAL '1' HOUR;
+CAST('2023-01-01 00:00:01' AS DATETIME) + INTERVAL '1' HOUR;
+
+CAST('2023-01-01' AS DATE) + INTERVAL '1' HOUR;
+CAST(CAST('2023-01-01' AS DATE) AS DATETIME) + INTERVAL '1' HOUR;
+
+SELECT t.d + INTERVAL '1' HOUR FROM temporal AS t;
+SELECT CAST("t"."d" AS DATETIME) + INTERVAL '1' HOUR AS "_col_0" FROM "temporal" AS "t";
+
 DATE_ADD(CAST("x" AS DATE), 1, 'YEAR');
 DATE_ADD(CAST("x" AS DATE), 1, 'YEAR');
 
 DATE_ADD('2023-01-01', 1, 'YEAR');
 DATE_ADD(CAST('2023-01-01' AS DATE), 1, 'YEAR');
+
+DATE_ADD('2023-01-01 00:00:00', 1, 'DAY');
+DATE_ADD(CAST('2023-01-01 00:00:00' AS DATETIME), 1, 'DAY');
+
+SELECT DATE_ADD(t.d, 1, 'HOUR') FROM temporal AS t;
+SELECT DATE_ADD(CAST("t"."d" AS DATETIME), 1, 'HOUR') AS "_col_0" FROM "temporal" AS "t";
+
+SELECT DATE_TRUNC('SECOND', t.d) FROM temporal AS t;
+SELECT DATE_TRUNC('SECOND', CAST("t"."d" AS DATETIME)) AS "_col_0" FROM "temporal" AS "t";
+
+DATE_TRUNC('DAY', '2023-01-01');
+DATE_TRUNC('DAY', CAST('2023-01-01' AS DATE));
+
+DATEDIFF('2023-01-01', '2023-01-02', DAY);
+DATEDIFF(CAST('2023-01-01' AS DATETIME), CAST('2023-01-02' AS DATETIME), DAY);