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|
--
-- VARCHAR
--
--
-- Build a table for testing
-- (This temporarily hides the table created in test_setup.sql)
--
CREATE TEMP TABLE VARCHAR_TBL(f1 varchar(1));
INSERT INTO VARCHAR_TBL (f1) VALUES ('a');
INSERT INTO VARCHAR_TBL (f1) VALUES ('A');
-- any of the following three input formats are acceptable
INSERT INTO VARCHAR_TBL (f1) VALUES ('1');
INSERT INTO VARCHAR_TBL (f1) VALUES (2);
INSERT INTO VARCHAR_TBL (f1) VALUES ('3');
-- zero-length char
INSERT INTO VARCHAR_TBL (f1) VALUES ('');
-- try varchar's of greater than 1 length
INSERT INTO VARCHAR_TBL (f1) VALUES ('cd');
ERROR: value too long for type character varying(1)
INSERT INTO VARCHAR_TBL (f1) VALUES ('c ');
SELECT * FROM VARCHAR_TBL;
f1
----
a
A
1
2
3
c
(7 rows)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 <> 'a';
f1
----
A
1
2
3
c
(6 rows)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 = 'a';
f1
----
a
(1 row)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 < 'a';
f1
----
A
1
2
3
(5 rows)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 <= 'a';
f1
----
a
A
1
2
3
(6 rows)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 > 'a';
f1
----
c
(1 row)
SELECT c.*
FROM VARCHAR_TBL c
WHERE c.f1 >= 'a';
f1
----
a
c
(2 rows)
DROP TABLE VARCHAR_TBL;
--
-- Now test longer arrays of char
--
-- This varchar_tbl was already created and filled in test_setup.sql.
-- Here we just try to insert bad values.
--
INSERT INTO VARCHAR_TBL (f1) VALUES ('abcde');
ERROR: value too long for type character varying(4)
SELECT * FROM VARCHAR_TBL;
f1
------
a
ab
abcd
abcd
(4 rows)
-- Also try it with non-error-throwing API
SELECT pg_input_is_valid('abcd ', 'varchar(4)');
pg_input_is_valid
-------------------
t
(1 row)
SELECT pg_input_is_valid('abcde', 'varchar(4)');
pg_input_is_valid
-------------------
f
(1 row)
SELECT * FROM pg_input_error_info('abcde', 'varchar(4)');
message | detail | hint | sql_error_code
----------------------------------------------+--------+------+----------------
value too long for type character varying(4) | | | 22001
(1 row)
|
