/*
{
  "qid": "022",
  "task_type": "ambig",
  "has_intended_resolution": true,
  "language": "SQLite",
  "db": "retails",
  "question": "Show the customer with the highest account balance for each area.",
  "gold_ambiguity_points": [
    {
      "id": "A",
      "phrase": "area",
      "type": "finite",
      "ambiguity_type": "semantic_column",
      "interpretations": [
        "nation",
        "region",
        "market segment"
      ],
      "intended_interpretation_idx": 2
    }
  ],
  "gold_intended_query_id": "GQRY-A.2",
  "extra_info": {}
}
*/


----- START OF GOLD QUERY `GQRY-A.0` -----
/*
{
  "id": "GQRY-A.0",
  "parameter_names": [],
  "parameter_values": {},
  "other_exec_results": [],
  "required_columns": [
    0,
    2
  ],
  "required_sorted": false,
  "extra_info": {
    "ambiguity_resolution": {
      "[A] area": "nation"
    }
  }
}
*/
SELECT n_name, c_custkey, c_name, c_acctbal
FROM (
SELECT n.n_nationkey,
n.n_name,
c.c_custkey,
c.c_name,
c.c_acctbal,
RANK() OVER (PARTITION BY n.n_nationkey ORDER BY c.c_acctbal DESC) AS rn
FROM customer c
JOIN nation n ON c.c_nationkey = n.n_nationkey
) t
WHERE rn = 1;
/* EXEC RESULT
        n_name  c_custkey             c_name  c_acctbal
       ALGERIA     122154 Customer#000122154    9999.60
     ARGENTINA      14740 Customer#000014740    9999.96
        BRAZIL      21734 Customer#000021734    9998.72
        CANADA     147958 Customer#000147958    9998.59
         EGYPT     124581 Customer#000124581    9996.59
... TRUNCATED ...
  SAUDI ARABIA     105511 Customer#000105511    9995.57
       VIETNAM        330 Customer#000000330    9999.59
        RUSSIA      81836 Customer#000081836    9997.92
UNITED KINGDOM     113195 Customer#000113195    9995.65
 UNITED STATES      75730 Customer#000075730    9999.80
*/
----- END OF GOLD QUERY -----


----- START OF GOLD QUERY `GQRY-A.1` -----
/*
{
  "id": "GQRY-A.1",
  "parameter_names": [],
  "parameter_values": {},
  "other_exec_results": [],
  "required_columns": [
    0,
    2
  ],
  "required_sorted": false,
  "extra_info": {
    "ambiguity_resolution": {
      "[A] area": "region"
    }
  }
}
*/
SELECT r_name, c_custkey, c_name, c_acctbal
FROM (
SELECT r.r_regionkey,
r.r_name,
c.c_custkey,
c.c_name,
c.c_acctbal,
RANK() OVER (PARTITION BY r.r_regionkey ORDER BY c.c_acctbal DESC) AS rn
FROM customer c
JOIN nation n ON c.c_nationkey = n.n_nationkey
JOIN region r ON n.n_regionkey = r.r_regionkey
) t
WHERE rn = 1;
/* EXEC RESULT
     r_name  c_custkey             c_name  c_acctbal
     AFRICA     118127 Customer#000118127    9999.94
    AMERICA      14740 Customer#000014740    9999.96
       ASIA      73836 Customer#000073836    9999.75
     EUROPE      97961 Customer#000097961    9999.56
MIDDLE EAST      72823 Customer#000072823    9999.65
*/
----- END OF GOLD QUERY -----


----- START OF GOLD QUERY `GQRY-A.2` -----
/*
{
  "id": "GQRY-A.2",
  "parameter_names": [],
  "parameter_values": {},
  "other_exec_results": [],
  "required_columns": [
    0,
    2
  ],
  "required_sorted": false,
  "extra_info": {
    "ambiguity_resolution": {
      "[A] area": "market segment"
    }
  }
}
*/
SELECT c_mktsegment, c_custkey, c_name, c_acctbal
FROM (
SELECT c.c_mktsegment,
c.c_custkey,
c.c_name,
c.c_acctbal,
RANK() OVER (PARTITION BY c.c_mktsegment ORDER BY c.c_acctbal DESC) AS rn
FROM customer c
) t
WHERE rn = 1;
/* EXEC RESULT
c_mktsegment  c_custkey             c_name  c_acctbal
  AUTOMOBILE      21734 Customer#000021734    9998.72
    BUILDING        330 Customer#000000330    9999.59
   FURNITURE      72823 Customer#000072823    9999.65
   HOUSEHOLD      48616 Customer#000048616    9999.84
   MACHINERY      14740 Customer#000014740    9999.96
*/
----- END OF GOLD QUERY -----