Merging upstream version 16.4.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/fixtures/identity.sql

@@ -519,8 +519,6 @@ SELECT student, score FROM tests CROSS JOIN UNNEST(scores) AS t(a, b)
 SELECT student, score FROM tests CROSS JOIN UNNEST(scores) WITH ORDINALITY AS t(a, b)
 SELECT student, score FROM tests CROSS JOIN UNNEST(x.scores) AS t(score)
 SELECT student, score FROM tests CROSS JOIN UNNEST(ARRAY(x.scores)) AS t(score)
-SELECT * FROM t WITH (TABLOCK, INDEX(myindex))
-SELECT * FROM t WITH (NOWAIT)
 CREATE TABLE foo AS (SELECT 1) UNION ALL (SELECT 2)
 CREATE TABLE foo (id INT PRIMARY KEY ASC)
 CREATE TABLE a.b AS SELECT 1

tests/fixtures/optimizer/optimizer.sql

@@ -646,3 +646,38 @@ CROSS JOIN LATERAL (
     "l"."log_date" DESC NULLS LAST
   LIMIT 1
 ) AS "l";
+
+# title: bigquery column identifiers are case-insensitive
+# execute: false
+# dialect: bigquery
+WITH cte AS (
+    SELECT
+        refresh_date AS `reFREsh_date`,
+        term AS `TeRm`,
+        `rank`
+    FROM `bigquery-public-data.GooGle_tReNDs.TOp_TeRmS`
+)
+SELECT
+   refresh_date AS `Day`,
+   term AS Top_Term,
+   rank,
+FROM cte
+WHERE
+   rank = 1
+   AND refresh_date >= DATE_SUB(CURRENT_DATE(), INTERVAL 2 WEEK)
+GROUP BY `dAy`, `top_term`, rank
+ORDER BY `DaY` DESC;
+SELECT
+  `TOp_TeRmS`.`refresh_date` AS `day`,
+  `TOp_TeRmS`.`term` AS `top_term`,
+  `TOp_TeRmS`.`rank` AS `rank`
+FROM `bigquery-public-data`.`GooGle_tReNDs`.`TOp_TeRmS` AS `TOp_TeRmS`
+WHERE
+  `TOp_TeRmS`.`rank` = 1
+  AND CAST(`TOp_TeRmS`.`refresh_date` AS DATE) >= DATE_SUB(CURRENT_DATE, INTERVAL 2 WEEK)
+GROUP BY
+  `TOp_TeRmS`.`refresh_date`,
+  `TOp_TeRmS`.`term`,
+  `TOp_TeRmS`.`rank`
+ORDER BY
+  `day` DESC;

tests/fixtures/optimizer/simplify.sql

@@ -240,6 +240,12 @@ A AND B AND C;
 SELECT x WHERE TRUE;
 SELECT x;
 
+SELECT x FROM y LEFT JOIN z ON TRUE;
+SELECT x FROM y CROSS JOIN z;
+
+SELECT x FROM y JOIN z USING (x);
+SELECT x FROM y JOIN z USING (x);
+
 --------------------------------------
 -- Parenthesis removal
 --------------------------------------