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QUERY: SELECT 'c'::char = 'c'::char AS true;
true
----
t
(1 row)
QUERY: CREATE TABLE CHAR_TBL(f1 char);
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('a');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('A');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('1');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES (2);
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('3');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('cd');
QUERY: SELECT '' AS seven, CHAR_TBL.*;
seven|f1
-----+--
|a
|A
|1
|2
|3
|
|c
(7 rows)
QUERY: SELECT '' AS six, c.*
FROM CHAR_TBL c
WHERE c.f1 <> 'a';
six|f1
---+--
|A
|1
|2
|3
|
|c
(6 rows)
QUERY: SELECT '' AS one, c.*
FROM CHAR_TBL c
WHERE c.f1 = 'a';
one|f1
---+--
|a
(1 row)
QUERY: SELECT '' AS five, c.*
FROM CHAR_TBL c
WHERE c.f1 < 'a';
five|f1
----+--
|A
|1
|2
|3
|
(5 rows)
QUERY: SELECT '' AS six, c.*
FROM CHAR_TBL c
WHERE c.f1 <= 'a';
six|f1
---+--
|a
|A
|1
|2
|3
|
(6 rows)
QUERY: SELECT '' AS one, c.*
FROM CHAR_TBL c
WHERE c.f1 > 'a';
one|f1
---+--
|c
(1 row)
QUERY: SELECT '' AS two, c.*
FROM CHAR_TBL c
WHERE c.f1 >= 'a';
two|f1
---+--
|a
|c
(2 rows)
QUERY: DROP TABLE CHAR_TBL;
QUERY: CREATE TABLE CHAR_TBL(f1 char(4));
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('a');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('ab');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('abcd');
QUERY: INSERT INTO CHAR_TBL (f1) VALUES ('abcde');
QUERY: SELECT '' AS four, CHAR_TBL.*;
four|f1
----+----
|a
|ab
|abcd
|abcd
(4 rows)
|
