1. test simple distinct
3
SELECT count()
FROM
(
    SELECT DISTINCT a
    FROM test_rewrite_uniq_to_count
)
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, is_subquery: 1, is_distinct: 1
      PROJECTION COLUMNS
        a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
  SETTINGS allow_experimental_analyzer=1
2. test distinct with subquery alias
3
SELECT count()
FROM
(
    SELECT DISTINCT a
    FROM test_rewrite_uniq_to_count
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1, is_distinct: 1
      PROJECTION COLUMNS
        a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
  SETTINGS allow_experimental_analyzer=1
3. test distinct with compound column name
3
SELECT count()
FROM
(
    SELECT DISTINCT a
    FROM test_rewrite_uniq_to_count
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1, is_distinct: 1
      PROJECTION COLUMNS
        a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
  SETTINGS allow_experimental_analyzer=1
4. test distinct with select expression alias
3
SELECT count()
FROM
(
    SELECT DISTINCT a AS alias_of_a
    FROM test_rewrite_uniq_to_count
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(alias_of_a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1, is_distinct: 1
      PROJECTION COLUMNS
        alias_of_a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
  SETTINGS allow_experimental_analyzer=1
5. test simple group by
3
SELECT count()
FROM
(
    SELECT
        a,
        sum(b)
    FROM test_rewrite_uniq_to_count
    GROUP BY a
)
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, is_subquery: 1
      PROJECTION COLUMNS
        a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
      GROUP BY
        LIST id: 7, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
  SETTINGS allow_experimental_analyzer=1
6. test group by with subquery alias
3
SELECT count()
FROM
(
    SELECT
        a,
        sum(b)
    FROM test_rewrite_uniq_to_count
    GROUP BY a
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1
      PROJECTION COLUMNS
        a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
      GROUP BY
        LIST id: 7, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
  SETTINGS allow_experimental_analyzer=1
7. test group by with compound column name
3
SELECT count()
FROM
(
    SELECT
        a AS alias_of_a,
        sum(b)
    FROM test_rewrite_uniq_to_count
    GROUP BY a
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(alias_of_a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1
      PROJECTION COLUMNS
        alias_of_a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
      GROUP BY
        LIST id: 7, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
  SETTINGS allow_experimental_analyzer=1
8. test group by with select expression alias
3
SELECT count()
FROM
(
    SELECT
        a AS alias_of_a,
        sum(b)
    FROM test_rewrite_uniq_to_count
    GROUP BY alias_of_a
) AS t
SETTINGS allow_experimental_analyzer = 0
3
QUERY id: 0
  PROJECTION COLUMNS
    uniq(alias_of_a) UInt64
  PROJECTION
    LIST id: 1, nodes: 1
      FUNCTION id: 2, function_name: count, function_type: aggregate, result_type: UInt64
  JOIN TREE
    QUERY id: 3, alias: t, is_subquery: 1
      PROJECTION COLUMNS
        alias_of_a UInt8
      PROJECTION
        LIST id: 4, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
      JOIN TREE
        TABLE id: 6, table_name: default.test_rewrite_uniq_to_count
      GROUP BY
        LIST id: 7, nodes: 1
          COLUMN id: 5, column_name: a, result_type: UInt8, source_id: 6
  SETTINGS allow_experimental_analyzer=1