Update regress test for CASE to enable tests involving joins.
This commit is contained in:
Tom Lane
parent
ec1f5f78b9
commit
86bc1da262
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@ -67,28 +67,28 @@ One|Two WHEN with default
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QUERY: SELECT '' AS "Five",
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CASE
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WHEN i >= 0 THEN i
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END AS ">= 0 or Null"
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WHEN i >= 3 THEN i
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END AS ">= 3 or Null"
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FROM CASE_TBL;
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Five|>= 0 or Null
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Five|>= 3 or Null
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----+------------
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| 1
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| 2
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| 3
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| 4
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(4 rows)
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QUERY: SELECT '' AS "Five",
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CASE WHEN i >= 0 THEN (i - i)
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CASE WHEN i >= 3 THEN (i + i)
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ELSE i
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END AS "Simplest Math"
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FROM CASE_TBL;
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Five|Simplest Math
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----+-------------
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| 0
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| 0
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| 0
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| 0
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| 1
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| 2
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| 6
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| 8
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(4 rows)
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QUERY: SELECT '' AS "Five", i AS "Value",
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@ -107,8 +107,7 @@ Five|Value|Category
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| 4|big
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(4 rows)
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QUERY: /*
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SELECT '' AS "Five",
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QUERY: SELECT '' AS "Five",
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CASE WHEN ((i < 0) or (i < 0)) THEN 'small'
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WHEN ((i = 0) or (i = 0)) THEN 'zero'
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WHEN ((i = 1) or (i = 1)) THEN 'one'
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@ -116,8 +115,15 @@ SELECT '' AS "Five",
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ELSE 'big'
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END AS "Category"
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FROM CASE_TBL;
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*/
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SELECT * FROM CASE_TBL WHERE COALESCE(f,i) = 4;
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Five|Category
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----+--------
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|one
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|two
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|big
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|big
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(4 rows)
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QUERY: SELECT * FROM CASE_TBL WHERE COALESCE(f,i) = 4;
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i|f
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-+-
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4|
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@ -128,33 +134,77 @@ i|f
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-+-
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(0 rows)
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QUERY: /*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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SELECT COALESCE(a.i, a.f, b.i, b.j)
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QUERY: SELECT COALESCE(a.f, b.i, b.j)
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FROM CASE_TBL a, CASE2_TBL b;
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*/
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SELECT *
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case
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-----
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10.1
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20.2
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-30.3
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1
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10.1
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20.2
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-30.3
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2
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10.1
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20.2
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-30.3
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3
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10.1
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20.2
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-30.3
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2
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10.1
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20.2
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-30.3
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1
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10.1
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20.2
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-30.3
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-6
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(24 rows)
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QUERY: SELECT *
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FROM CASE_TBL a, CASE2_TBL b
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WHERE COALESCE(a.i, a.f, b.i, b.j) = 4;
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WHERE COALESCE(a.f, b.i, b.j) = 2;
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i|f|i| j
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-+-+-+--
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4| |1|-1
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4| |2|-2
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4| |3|-3
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4| |2|-4
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4| |1|
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4| | |-6
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(6 rows)
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(2 rows)
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QUERY: /*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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SELECT '' AS Five, NULLIF(a.i,b.i) AS "NULLIF(a.i,b.i)",
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QUERY: SELECT '' AS Five, NULLIF(a.i,b.i) AS "NULLIF(a.i,b.i)",
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NULLIF(b.i, 4) AS "NULLIF(b.i,4)"
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FROM CASE_TBL a, CASE2_TBL b;
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*/
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SELECT '' AS "Two", *
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five|NULLIF(a.i,b.i)|NULLIF(b.i,4)
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----+---------------+-------------
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| | 1
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| 2| 1
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| 3| 1
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| 4| 1
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| 1| 2
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| | 2
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| 3| 2
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| 4| 2
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| 1| 3
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| 2| 3
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| | 3
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| 4| 3
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| 1| 2
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| | 2
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| 3| 2
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| 4| 2
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| | 1
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| 2| 1
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| 3| 1
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| 4| 1
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| 1|
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| 2|
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| 3|
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| 4|
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(24 rows)
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QUERY: SELECT '' AS "Two", *
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FROM CASE_TBL a, CASE2_TBL b
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WHERE COALESCE(f,b.i) = 2;
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Two|i|f|i| j
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@ -164,13 +214,13 @@ Two|i|f|i| j
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(2 rows)
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QUERY: UPDATE CASE_TBL
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SET i = CASE WHEN i >= 0 THEN (- i)
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SET i = CASE WHEN i >= 3 THEN (- i)
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ELSE (2 * i) END;
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QUERY: SELECT * FROM CASE_TBL;
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i| f
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--+-----
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-1| 10.1
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-2| 20.2
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2| 10.1
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4| 20.2
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-3|-30.3
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-4|
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(4 rows)
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@ -181,21 +231,25 @@ QUERY: UPDATE CASE_TBL
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QUERY: SELECT * FROM CASE_TBL;
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i| f
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---+-----
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-3| 10.1
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-6| 20.2
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4| 10.1
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8| 20.2
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-9|-30.3
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-12|
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(4 rows)
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QUERY: /*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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UPDATE CASE_TBL
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QUERY: UPDATE CASE_TBL
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SET i = CASE WHEN b.i >= 2 THEN (2 * j)
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ELSE (3 * j) END
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FROM CASE2_TBL b
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WHERE j = -CASE_TBL.i;
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SELECT * FROM CASE_TBL;
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*/
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DROP TABLE CASE_TBL;
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QUERY: SELECT * FROM CASE_TBL;
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i| f
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---+-----
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8| 20.2
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-9|-30.3
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-12|
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-8| 10.1
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(4 rows)
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QUERY: DROP TABLE CASE_TBL;
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QUERY: DROP TABLE CASE2_TBL;
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@ -65,12 +65,12 @@ SELECT '6' AS "One",
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SELECT '' AS "Five",
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CASE
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WHEN i >= 0 THEN i
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END AS ">= 0 or Null"
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WHEN i >= 3 THEN i
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END AS ">= 3 or Null"
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FROM CASE_TBL;
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SELECT '' AS "Five",
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CASE WHEN i >= 0 THEN (i - i)
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CASE WHEN i >= 3 THEN (i + i)
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ELSE i
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END AS "Simplest Math"
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FROM CASE_TBL;
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@ -84,7 +84,6 @@ SELECT '' AS "Five", i AS "Value",
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END AS "Category"
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FROM CASE_TBL;
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/*
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SELECT '' AS "Five",
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CASE WHEN ((i < 0) or (i < 0)) THEN 'small'
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WHEN ((i = 0) or (i = 0)) THEN 'zero'
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@ -93,7 +92,6 @@ SELECT '' AS "Five",
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ELSE 'big'
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END AS "Category"
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FROM CASE_TBL;
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*/
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--
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-- Examples of qualifications involving tables
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@ -109,24 +107,16 @@ SELECT * FROM CASE_TBL WHERE COALESCE(f,i) = 4;
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SELECT * FROM CASE_TBL WHERE NULLIF(f,i) = 2;
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/*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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SELECT COALESCE(a.i, a.f, b.i, b.j)
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SELECT COALESCE(a.f, b.i, b.j)
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FROM CASE_TBL a, CASE2_TBL b;
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*/
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SELECT *
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FROM CASE_TBL a, CASE2_TBL b
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WHERE COALESCE(a.i, a.f, b.i, b.j) = 4;
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WHERE COALESCE(a.f, b.i, b.j) = 2;
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/*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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SELECT '' AS Five, NULLIF(a.i,b.i) AS "NULLIF(a.i,b.i)",
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NULLIF(b.i, 4) AS "NULLIF(b.i,4)"
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FROM CASE_TBL a, CASE2_TBL b;
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*/
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SELECT '' AS "Two", *
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FROM CASE_TBL a, CASE2_TBL b
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@ -137,7 +127,7 @@ SELECT '' AS "Two", *
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--
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UPDATE CASE_TBL
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SET i = CASE WHEN i >= 0 THEN (- i)
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SET i = CASE WHEN i >= 3 THEN (- i)
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ELSE (2 * i) END;
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SELECT * FROM CASE_TBL;
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@ -148,9 +138,6 @@ UPDATE CASE_TBL
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SELECT * FROM CASE_TBL;
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/*
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This crashes the backend at the moment...
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- thomas 1998-12-12
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UPDATE CASE_TBL
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SET i = CASE WHEN b.i >= 2 THEN (2 * j)
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ELSE (3 * j) END
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@ -158,7 +145,6 @@ UPDATE CASE_TBL
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WHERE j = -CASE_TBL.i;
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SELECT * FROM CASE_TBL;
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*/
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--
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-- Clean up
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