mirror of https://github.com/citusdata/citus.git
134 lines
3.6 KiB
Plaintext
134 lines
3.6 KiB
Plaintext
SET citus.next_shard_id TO 20080000;
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CREATE SCHEMA anonymous_columns;
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SET search_path TO anonymous_columns;
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CREATE TABLE t0 (a int PRIMARY KEY, b int, "?column?" text);
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SELECT create_distributed_table('t0', 'a');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO t0 VALUES (1, 2, 'hello'), (2, 4, 'world');
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SELECT "?column?" FROM t0 ORDER BY 1;
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?column?
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---------------------------------------------------------------------
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hello
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world
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(2 rows)
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WITH a AS (SELECT * FROM t0) SELECT "?column?" FROM a ORDER BY 1;
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?column?
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---------------------------------------------------------------------
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hello
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world
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(2 rows)
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WITH a AS (SELECT '' FROM t0) SELECT * FROM a;
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?column?
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---------------------------------------------------------------------
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(2 rows)
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-- test CTE's that could be rewritten as subquery
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WITH a AS (SELECT '' FROM t0 GROUP BY a) SELECT * FROM a;
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?column?
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---------------------------------------------------------------------
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(2 rows)
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WITH a AS (SELECT '' FROM t0 GROUP BY b) SELECT * FROM a;
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?column?
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---------------------------------------------------------------------
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(2 rows)
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WITH a AS (SELECT '','' FROM t0 GROUP BY a) SELECT * FROM a;
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?column? | ?column?
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---------------------------------------------------------------------
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(2 rows)
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WITH a AS (SELECT '','' FROM t0 GROUP BY b) SELECT * FROM a;
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?column? | ?column?
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---------------------------------------------------------------------
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(2 rows)
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WITH a AS (SELECT 1, * FROM t0 WHERE a = 1) SELECT * FROM a;
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?column? | a | b | ?column?
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---------------------------------------------------------------------
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1 | 1 | 2 | hello
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(1 row)
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-- test CTE's that are referenced multiple times and hence need to stay CTE's
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WITH a AS (SELECT '' FROM t0 WHERE a = 1) SELECT * FROM a, a b;
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?column? | ?column?
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---------------------------------------------------------------------
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(1 row)
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WITH a AS (SELECT '','' FROM t0 WHERE a = 42) SELECT * FROM a, a b;
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?column? | ?column? | ?column? | ?column?
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---------------------------------------------------------------------
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(0 rows)
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-- test with explicit subqueries
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SELECT * FROM (SELECT a, '' FROM t0 GROUP BY a) as foo ORDER BY 1;
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a | ?column?
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---------------------------------------------------------------------
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1 |
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2 |
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(2 rows)
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SELECT * FROM (SELECT a, '', '' FROM t0 GROUP BY a ) as foo ORDER BY 1;
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a | ?column? | ?column?
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---------------------------------------------------------------------
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1 | |
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2 | |
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(2 rows)
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SELECT * FROM (SELECT b, '' FROM t0 GROUP BY b ) as foo ORDER BY 1;
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b | ?column?
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---------------------------------------------------------------------
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2 |
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4 |
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(2 rows)
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SELECT * FROM (SELECT b, '', '' FROM t0 GROUP BY b ) as foo ORDER BY 1;
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b | ?column? | ?column?
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---------------------------------------------------------------------
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2 | |
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4 | |
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(2 rows)
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-- some tests that follow very similar codeoaths
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SELECT a + 1 FROM t0 ORDER BY 1;
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?column?
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---------------------------------------------------------------------
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2
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3
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(2 rows)
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SELECT a + 1, a - 1 FROM t0 ORDER BY 1;
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?column? | ?column?
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---------------------------------------------------------------------
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2 | 0
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3 | 1
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(2 rows)
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WITH cte1 AS (SELECT row_to_json(row(a))->'f1' FROM t0) SELECT * FROM cte1 ORDER BY "?column?"::text;
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?column?
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---------------------------------------------------------------------
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1
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2
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(2 rows)
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-- clean up after test
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SET client_min_messages TO WARNING;
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DROP SCHEMA anonymous_columns CASCADE;
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