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|
CREATE TEMP TABLE x (
a serial,
b int,
c text not null default 'stuff',
d text,
e text
) WITH OIDS;
CREATE FUNCTION fn_x_before () RETURNS TRIGGER AS '
BEGIN
NEW.e := ''before trigger fired''::text;
return NEW;
END;
' LANGUAGE plpgsql;
CREATE FUNCTION fn_x_after () RETURNS TRIGGER AS '
BEGIN
UPDATE x set e=''after trigger fired'' where c=''stuff'';
return NULL;
END;
' LANGUAGE plpgsql;
CREATE TRIGGER trg_x_after AFTER INSERT ON x
FOR EACH ROW EXECUTE PROCEDURE fn_x_after();
CREATE TRIGGER trg_x_before BEFORE INSERT ON x
FOR EACH ROW EXECUTE PROCEDURE fn_x_before();
COPY x (a, b, c, d, e) from stdin;
COPY x (b, d) from stdin;
COPY x (b, d) from stdin;
COPY x (a, b, c, d, e) from stdin;
-- non-existent column in column list: should fail
COPY x (xyz) from stdin;
ERROR: column "xyz" of relation "x" does not exist
-- too many columns in column list: should fail
COPY x (a, b, c, d, e, d, c) from stdin;
ERROR: column "d" specified more than once
-- missing data: should fail
COPY x from stdin;
ERROR: invalid input syntax for integer: ""
CONTEXT: COPY x, line 1, column a: ""
COPY x from stdin;
ERROR: missing data for column "e"
CONTEXT: COPY x, line 1: "2000 230 23 23"
COPY x from stdin;
ERROR: missing data for column "e"
CONTEXT: COPY x, line 1: "2001 231 \N \N"
-- extra data: should fail
COPY x from stdin;
ERROR: extra data after last expected column
CONTEXT: COPY x, line 1: "2002 232 40 50 60 70 80"
-- various COPY options: delimiters, oids, NULL string, encoding
COPY x (b, c, d, e) from stdin with oids delimiter ',' null 'x';
COPY x from stdin WITH DELIMITER AS ';' NULL AS '';
COPY x from stdin WITH DELIMITER AS ':' NULL AS E'\\X' ENCODING 'sql_ascii';
-- check results of copy in
SELECT * FROM x;
a | b | c | d | e
-------+----+------------+--------+----------------------
9999 | | \N | NN | before trigger fired
10000 | 21 | 31 | 41 | before trigger fired
10001 | 22 | 32 | 42 | before trigger fired
10002 | 23 | 33 | 43 | before trigger fired
10003 | 24 | 34 | 44 | before trigger fired
10004 | 25 | 35 | 45 | before trigger fired
10005 | 26 | 36 | 46 | before trigger fired
6 | | 45 | 80 | before trigger fired
7 | | x | \x | before trigger fired
8 | | , | \, | before trigger fired
3000 | | c | | before trigger fired
4000 | | C | | before trigger fired
4001 | 1 | empty | | before trigger fired
4002 | 2 | null | | before trigger fired
4003 | 3 | Backslash | \ | before trigger fired
4004 | 4 | BackslashX | \X | before trigger fired
4005 | 5 | N | N | before trigger fired
4006 | 6 | BackslashN | \N | before trigger fired
4007 | 7 | XX | XX | before trigger fired
4008 | 8 | Delimiter | : | before trigger fired
1 | 1 | stuff | test_1 | after trigger fired
2 | 2 | stuff | test_2 | after trigger fired
3 | 3 | stuff | test_3 | after trigger fired
4 | 4 | stuff | test_4 | after trigger fired
5 | 5 | stuff | test_5 | after trigger fired
(25 rows)
-- COPY w/ oids on a table w/o oids should fail
CREATE TABLE no_oids (
a int,
b int
) WITHOUT OIDS;
INSERT INTO no_oids (a, b) VALUES (5, 10);
INSERT INTO no_oids (a, b) VALUES (20, 30);
-- should fail
COPY no_oids FROM stdin WITH OIDS;
ERROR: table "no_oids" does not have OIDs
COPY no_oids TO stdout WITH OIDS;
ERROR: table "no_oids" does not have OIDs
-- check copy out
COPY x TO stdout;
9999 \N \\N NN before trigger fired
10000 21 31 41 before trigger fired
10001 22 32 42 before trigger fired
10002 23 33 43 before trigger fired
10003 24 34 44 before trigger fired
10004 25 35 45 before trigger fired
10005 26 36 46 before trigger fired
6 \N 45 80 before trigger fired
7 \N x \\x before trigger fired
8 \N , \\, before trigger fired
3000 \N c \N before trigger fired
4000 \N C \N before trigger fired
4001 1 empty before trigger fired
4002 2 null \N before trigger fired
4003 3 Backslash \\ before trigger fired
4004 4 BackslashX \\X before trigger fired
4005 5 N N before trigger fired
4006 6 BackslashN \\N before trigger fired
4007 7 XX XX before trigger fired
4008 8 Delimiter : before trigger fired
1 1 stuff test_1 after trigger fired
2 2 stuff test_2 after trigger fired
3 3 stuff test_3 after trigger fired
4 4 stuff test_4 after trigger fired
5 5 stuff test_5 after trigger fired
COPY x (c, e) TO stdout;
\\N before trigger fired
31 before trigger fired
32 before trigger fired
33 before trigger fired
34 before trigger fired
35 before trigger fired
36 before trigger fired
45 before trigger fired
x before trigger fired
, before trigger fired
c before trigger fired
C before trigger fired
empty before trigger fired
null before trigger fired
Backslash before trigger fired
BackslashX before trigger fired
N before trigger fired
BackslashN before trigger fired
XX before trigger fired
Delimiter before trigger fired
stuff after trigger fired
stuff after trigger fired
stuff after trigger fired
stuff after trigger fired
stuff after trigger fired
COPY x (b, e) TO stdout WITH NULL 'I''m null';
I'm null before trigger fired
21 before trigger fired
22 before trigger fired
23 before trigger fired
24 before trigger fired
25 before trigger fired
26 before trigger fired
I'm null before trigger fired
I'm null before trigger fired
I'm null before trigger fired
I'm null before trigger fired
I'm null before trigger fired
1 before trigger fired
2 before trigger fired
3 before trigger fired
4 before trigger fired
5 before trigger fired
6 before trigger fired
7 before trigger fired
8 before trigger fired
1 after trigger fired
2 after trigger fired
3 after trigger fired
4 after trigger fired
5 after trigger fired
CREATE TEMP TABLE y (
col1 text,
col2 text
);
INSERT INTO y VALUES ('Jackson, Sam', E'\\h');
INSERT INTO y VALUES ('It is "perfect".',E'\t');
INSERT INTO y VALUES ('', NULL);
COPY y TO stdout WITH CSV;
"Jackson, Sam",\h
"It is ""perfect"".",
"",
COPY y TO stdout WITH CSV QUOTE '''' DELIMITER '|';
Jackson, Sam|\h
It is "perfect".|
''|
COPY y TO stdout WITH CSV FORCE QUOTE col2 ESCAPE E'\\' ENCODING 'sql_ascii';
"Jackson, Sam","\\h"
"It is \"perfect\"."," "
"",
COPY y TO stdout WITH CSV FORCE QUOTE *;
"Jackson, Sam","\h"
"It is ""perfect""."," "
"",
-- Repeat above tests with new 9.0 option syntax
COPY y TO stdout (FORMAT CSV);
"Jackson, Sam",\h
"It is ""perfect"".",
"",
COPY y TO stdout (FORMAT CSV, QUOTE '''', DELIMITER '|');
Jackson, Sam|\h
It is "perfect".|
''|
COPY y TO stdout (FORMAT CSV, FORCE_QUOTE (col2), ESCAPE E'\\');
"Jackson, Sam","\\h"
"It is \"perfect\"."," "
"",
COPY y TO stdout (FORMAT CSV, FORCE_QUOTE *);
"Jackson, Sam","\h"
"It is ""perfect""."," "
"",
\copy y TO stdout (FORMAT CSV)
"Jackson, Sam",\h
"It is ""perfect"".",
"",
\copy y TO stdout (FORMAT CSV, QUOTE '''', DELIMITER '|')
Jackson, Sam|\h
It is "perfect".|
''|
\copy y TO stdout (FORMAT CSV, FORCE_QUOTE (col2), ESCAPE E'\\')
"Jackson, Sam","\\h"
"It is \"perfect\"."," "
"",
\copy y TO stdout (FORMAT CSV, FORCE_QUOTE *)
"Jackson, Sam","\h"
"It is ""perfect""."," "
"",
--test that we read consecutive LFs properly
CREATE TEMP TABLE testnl (a int, b text, c int);
COPY testnl FROM stdin CSV;
-- test end of copy marker
CREATE TEMP TABLE testeoc (a text);
COPY testeoc FROM stdin CSV;
COPY testeoc TO stdout CSV;
a\.
\.b
c\.d
"\."
-- test handling of nonstandard null marker that violates escaping rules
CREATE TEMP TABLE testnull(a int, b text);
INSERT INTO testnull VALUES (1, E'\\0'), (NULL, NULL);
COPY testnull TO stdout WITH NULL AS E'\\0';
1 \\0
\0 \0
COPY testnull FROM stdin WITH NULL AS E'\\0';
SELECT * FROM testnull;
a | b
----+----
1 | \0
|
42 | \0
|
(4 rows)
BEGIN;
CREATE TABLE vistest (LIKE testeoc);
COPY vistest FROM stdin CSV;
COMMIT;
SELECT * FROM vistest;
a
----
a0
b
(2 rows)
BEGIN;
TRUNCATE vistest;
COPY vistest FROM stdin CSV;
SELECT * FROM vistest;
a
----
a1
b
(2 rows)
SAVEPOINT s1;
TRUNCATE vistest;
COPY vistest FROM stdin CSV;
SELECT * FROM vistest;
a
----
d1
e
(2 rows)
COMMIT;
SELECT * FROM vistest;
a
----
d1
e
(2 rows)
BEGIN;
TRUNCATE vistest;
COPY vistest FROM stdin CSV FREEZE;
SELECT * FROM vistest;
a
----
a2
b
(2 rows)
SAVEPOINT s1;
TRUNCATE vistest;
COPY vistest FROM stdin CSV FREEZE;
SELECT * FROM vistest;
a
----
d2
e
(2 rows)
COMMIT;
SELECT * FROM vistest;
a
----
d2
e
(2 rows)
BEGIN;
TRUNCATE vistest;
COPY vistest FROM stdin CSV FREEZE;
SELECT * FROM vistest;
a
---
x
y
(2 rows)
COMMIT;
TRUNCATE vistest;
COPY vistest FROM stdin CSV FREEZE;
ERROR: cannot perform FREEZE because the table was not created or truncated in the current subtransaction
BEGIN;
TRUNCATE vistest;
SAVEPOINT s1;
COPY vistest FROM stdin CSV FREEZE;
ERROR: cannot perform FREEZE because the table was not created or truncated in the current subtransaction
COMMIT;
BEGIN;
INSERT INTO vistest VALUES ('z');
SAVEPOINT s1;
TRUNCATE vistest;
ROLLBACK TO SAVEPOINT s1;
COPY vistest FROM stdin CSV FREEZE;
ERROR: cannot perform FREEZE because the table was not created or truncated in the current subtransaction
COMMIT;
CREATE FUNCTION truncate_in_subxact() RETURNS VOID AS
$$
BEGIN
TRUNCATE vistest;
EXCEPTION
WHEN OTHERS THEN
INSERT INTO vistest VALUES ('subxact failure');
END;
$$ language plpgsql;
BEGIN;
INSERT INTO vistest VALUES ('z');
SELECT truncate_in_subxact();
truncate_in_subxact
---------------------
(1 row)
COPY vistest FROM stdin CSV FREEZE;
SELECT * FROM vistest;
a
----
d4
e
(2 rows)
COMMIT;
SELECT * FROM vistest;
a
----
d4
e
(2 rows)
DROP TABLE vistest;
DROP FUNCTION truncate_in_subxact();
DROP TABLE x, y;
DROP FUNCTION fn_x_before();
DROP FUNCTION fn_x_after();
|
