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|
--
-- NAME
-- all inputs are silently truncated at NAMEDATALEN-1 (63) characters
--
-- fixed-length by reference
SELECT name 'name string' = name 'name string' AS "True";
True
------
t
(1 row)
SELECT name 'name string' = name 'name string ' AS "False";
False
-------
f
(1 row)
--
--
--
CREATE TABLE NAME_TBL(f1 name);
INSERT INTO NAME_TBL(f1) VALUES ('1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR');
INSERT INTO NAME_TBL(f1) VALUES ('1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqr');
INSERT INTO NAME_TBL(f1) VALUES ('asdfghjkl;');
INSERT INTO NAME_TBL(f1) VALUES ('343f%2a');
INSERT INTO NAME_TBL(f1) VALUES ('d34aaasdf');
INSERT INTO NAME_TBL(f1) VALUES ('');
INSERT INTO NAME_TBL(f1) VALUES ('1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ');
SELECT '' AS seven, * FROM NAME_TBL;
seven | f1
-------+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| asdfghjkl;
| 343f%2a
| d34aaasdf
|
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(7 rows)
SELECT '' AS six, c.f1 FROM NAME_TBL c WHERE c.f1 <> '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
six | f1
-----+-----------------------------------------------------------------
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| asdfghjkl;
| 343f%2a
| d34aaasdf
|
(5 rows)
SELECT '' AS one, c.f1 FROM NAME_TBL c WHERE c.f1 = '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
one | f1
-----+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(2 rows)
SELECT '' AS three, c.f1 FROM NAME_TBL c WHERE c.f1 < '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
three | f1
-------+----
|
(1 row)
SELECT '' AS four, c.f1 FROM NAME_TBL c WHERE c.f1 <= '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
four | f1
------+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
|
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(3 rows)
SELECT '' AS three, c.f1 FROM NAME_TBL c WHERE c.f1 > '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
three | f1
-------+-----------------------------------------------------------------
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| asdfghjkl;
| 343f%2a
| d34aaasdf
(4 rows)
SELECT '' AS four, c.f1 FROM NAME_TBL c WHERE c.f1 >= '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQR';
four | f1
------+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| asdfghjkl;
| 343f%2a
| d34aaasdf
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(6 rows)
SELECT '' AS seven, c.f1 FROM NAME_TBL c WHERE c.f1 ~ '.*';
seven | f1
-------+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| asdfghjkl;
| 343f%2a
| d34aaasdf
|
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(7 rows)
SELECT '' AS zero, c.f1 FROM NAME_TBL c WHERE c.f1 !~ '.*';
zero | f1
------+----
(0 rows)
SELECT '' AS three, c.f1 FROM NAME_TBL c WHERE c.f1 ~ '[0-9]';
three | f1
-------+-----------------------------------------------------------------
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
| 1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopq
| 343f%2a
| d34aaasdf
| 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQ
(5 rows)
SELECT '' AS two, c.f1 FROM NAME_TBL c WHERE c.f1 ~ '.*asdf.*';
two | f1
-----+------------
| asdfghjkl;
| d34aaasdf
(2 rows)
DROP TABLE NAME_TBL;
DO $$
DECLARE r text[];
BEGIN
r := parse_ident('Schemax.Tabley');
RAISE NOTICE '%', format('%I.%I', r[1], r[2]);
r := parse_ident('"SchemaX"."TableY"');
RAISE NOTICE '%', format('%I.%I', r[1], r[2]);
END;
$$;
NOTICE: schemax.tabley
NOTICE: "SchemaX"."TableY"
SELECT parse_ident('foo.boo');
parse_ident
-------------
{foo,boo}
(1 row)
SELECT parse_ident('foo.boo[]'); -- should fail
ERROR: string is not a valid identifier: "foo.boo[]"
SELECT parse_ident('foo.boo[]', strict => false); -- ok
parse_ident
-------------
{foo,boo}
(1 row)
-- should fail
SELECT parse_ident(' ');
ERROR: string is not a valid identifier: " "
SELECT parse_ident(' .aaa');
ERROR: string is not a valid identifier: " .aaa"
DETAIL: No valid identifier before ".".
SELECT parse_ident(' aaa . ');
ERROR: string is not a valid identifier: " aaa . "
DETAIL: No valid identifier after ".".
SELECT parse_ident('aaa.a%b');
ERROR: string is not a valid identifier: "aaa.a%b"
SELECT parse_ident(E'X\rXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
ERROR: string is not a valid identifier: "X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
SELECT length(a[1]), length(a[2]) from parse_ident('"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy') as a ;
length | length
--------+--------
414 | 289
(1 row)
SELECT parse_ident(' first . " second " ." third ". " ' || repeat('x',66) || '"');
parse_ident
-----------------------------------------------------------------------------------------------------------
{first," second "," third "," xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}
(1 row)
SELECT parse_ident(' first . " second " ." third ". " ' || repeat('x',66) || '"')::name[];
parse_ident
------------------------------------------------------------------------------------------------------
{first," second "," third "," xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}
(1 row)
SELECT parse_ident(E'"c".X XXXX\002XXXXXX');
ERROR: string is not a valid identifier: ""c".X XXXXXXXXXX"
SELECT parse_ident('1020');
ERROR: string is not a valid identifier: "1020"
SELECT parse_ident('10.20');
ERROR: string is not a valid identifier: "10.20"
SELECT parse_ident('.');
ERROR: string is not a valid identifier: "."
DETAIL: No valid identifier before ".".
SELECT parse_ident('.1020');
ERROR: string is not a valid identifier: ".1020"
DETAIL: No valid identifier before ".".
SELECT parse_ident('xxx.1020');
ERROR: string is not a valid identifier: "xxx.1020"
DETAIL: No valid identifier after ".".
|
