Adding upstream version 16.7.3.

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

tests/fixtures/optimizer/merge_subqueries.sql

@@ -252,7 +252,7 @@ FROM
   t1
 GROUP BY t1.row_num
 ORDER BY t1.row_num;
-WITH t1 AS (SELECT x.a AS a, x.b AS b, ROW_NUMBER() OVER (PARTITION BY x.a ORDER BY x.a) AS row_num FROM x AS x) SELECT t1.row_num AS row_num, SUM(t1.a) AS total FROM t1 GROUP BY t1.row_num ORDER BY t1.row_num;
+WITH t1 AS (SELECT x.a AS a, x.b AS b, ROW_NUMBER() OVER (PARTITION BY x.a ORDER BY x.a) AS row_num FROM x AS x) SELECT t1.row_num AS row_num, SUM(t1.a) AS total FROM t1 GROUP BY t1.row_num ORDER BY row_num;
 
 # title: Test prevent merging of window if in order by func
 with t1 as (

tests/fixtures/optimizer/optimizer.sql

@@ -577,10 +577,10 @@ FROM `u_cte` AS `u_cte` PIVOT(SUM(`u_cte`.`f`) AS `sum` FOR `u_cte`.`h` IN ('x',
 # dialect: snowflake
 SELECT * FROM u PIVOT (SUM(f) FOR h IN ('x', 'y'));
 SELECT
-  "_q_0"."G" AS "G",
-  "_q_0"."'x'" AS "'x'",
-  "_q_0"."'y'" AS "'y'"
-FROM "U" AS "U" PIVOT(SUM("U"."F") FOR "U"."H" IN ('x', 'y')) AS "_q_0"
+  "_Q_0"."G" AS "G",
+  "_Q_0"."'x'" AS "'x'",
+  "_Q_0"."'y'" AS "'y'"
+FROM "U" AS "U" PIVOT(SUM("U"."F") FOR "U"."H" IN ('x', 'y')) AS "_Q_0"
 ;
 
 # title: selecting all columns from a pivoted source and generating spark
@@ -668,16 +668,28 @@ WHERE
 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`
+  `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)
+  `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`
+  `day`,
+  `top_term`,
+  `rank`
 ORDER BY
   `day` DESC;
+
+
+# title: group by keys cannot be simplified
+SELECT a + 1 + 1 + 1 + 1 AS b, 2 + 1 AS c FROM x GROUP BY a + 1 + 1 HAVING a + 1 + 1 + 1 + 1 > 1;
+SELECT
+  "x"."a" + 1 + 1 + 1 + 1 AS "b",
+  3 AS "c"
+FROM "x" AS "x"
+GROUP BY
+  "x"."a" + 1 + 1
+HAVING
+  "x"."a" + 1 + 1 + 1 + 1 > 1;

tests/fixtures/optimizer/tpc-ds/tpc-ds.sql

@@ -254,7 +254,7 @@ GROUP BY
   "item"."i_brand",
   "item"."i_brand_id"
 ORDER BY
-  "dt"."d_year",
+  "d_year",
   "sum_agg" DESC,
   "brand_id"
 LIMIT 100;
@@ -2767,8 +2767,8 @@ GROUP BY
   "item"."i_manufact"
 ORDER BY
   "ext_price" DESC,
-  "item"."i_brand",
-  "item"."i_brand_id",
+  "brand",
+  "brand_id",
   "i_manufact_id",
   "i_manufact"
 LIMIT 100;
@@ -5112,10 +5112,10 @@ GROUP BY
   "item"."i_category_id",
   "item"."i_category"
 ORDER BY
-  SUM("store_sales"."ss_ext_sales_price") DESC,
-  "dt"."d_year",
-  "item"."i_category_id",
-  "item"."i_category"
+  "_col_3" DESC,
+  "d_year",
+  "i_category_id",
+  "i_category"
 LIMIT 100;
 
 --------------------------------------
@@ -6353,7 +6353,7 @@ GROUP BY
   "item"."i_brand",
   "item"."i_brand_id"
 ORDER BY
-  "dt"."d_year",
+  "d_year",
   "ext_price" DESC,
   "brand_id"
 LIMIT 100;
@@ -6648,7 +6648,7 @@ GROUP BY
   "item"."i_brand_id"
 ORDER BY
   "ext_price" DESC,
-  "item"."i_brand_id"
+  "brand_id"
 LIMIT 100;
 
 --------------------------------------
@@ -7770,7 +7770,7 @@ GROUP BY
   "ship_mode"."sm_type",
   "web_site"."web_name"
 ORDER BY
-  SUBSTR("warehouse"."w_warehouse_name", 1, 20),
+  "_col_0",
   "sm_type",
   "web_name"
 LIMIT 100;
@@ -9668,7 +9668,7 @@ GROUP BY
   "time_dim"."t_minute"
 ORDER BY
   "ext_price" DESC,
-  "item"."i_brand_id";
+  "brand_id";
 
 --------------------------------------
 -- TPC-DS 72
@@ -11692,10 +11692,10 @@ JOIN "customer_demographics" AS "cd1"
 GROUP BY
   "reason"."r_reason_desc"
 ORDER BY
-  SUBSTR("reason"."r_reason_desc", 1, 20),
-  AVG("web_sales"."ws_quantity"),
-  AVG("web_returns"."wr_refunded_cash"),
-  AVG("web_returns"."wr_fee")
+  "_col_0",
+  "_col_1",
+  "_col_2",
+  "_col_3"
 LIMIT 100;
 
 --------------------------------------
@@ -12364,7 +12364,7 @@ GROUP BY
   "customer_demographics"."cd_marital_status",
   "customer_demographics"."cd_education_status"
 ORDER BY
-  SUM("catalog_returns"."cr_net_loss") DESC;
+  "returns_loss" DESC;
 
 --------------------------------------
 -- TPC-DS 92
@@ -12940,7 +12940,7 @@ GROUP BY
   "ship_mode"."sm_type",
   "call_center"."cc_name"
 ORDER BY
-  SUBSTR("warehouse"."w_warehouse_name", 1, 20),
+  "_col_0",
   "sm_type",
   "cc_name"
 LIMIT 100;