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Provide a more informative error message when a uniqueness constraint

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fails.  Ticket #419. (CVS 1068)

FossilOrigin-Name: 086aa1c9922b7bf399b3ee8b73ba7353d126b119
This commit is contained in:
drh
2003-08-05 13:13:38 +00:00
parent 4305d10360
commit 37ed48ed2f
11 changed files with 107 additions and 54 deletions
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41
test/unique.test
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@ -12,7 +12,7 @@
# focus of this file is testing the CREATE UNIQUE INDEX statement,
# and primary keys, and the UNIQUE constraint on table columns
#
# $Id: unique.test,v 1.6 2003/06/15 23:42:25 drh Exp $
# $Id: unique.test,v 1.7 2003/08/05 13:13:39 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -47,7 +47,7 @@ do_test unique-1.3 {
catchsql {
INSERT INTO t1(a,b,c) VALUES(1,3,4)
}
} {1 {uniqueness constraint failed}}
} {1 {column a is not unique}}
do_test unique-1.4 {
execsql {
SELECT * FROM t1 ORDER BY a;
@ -57,7 +57,7 @@ do_test unique-1.5 {
catchsql {
INSERT INTO t1(a,b,c) VALUES(3,2,4)
}
} {1 {uniqueness constraint failed}}
} {1 {column b is not unique}}
do_test unique-1.6 {
execsql {
SELECT * FROM t1 ORDER BY a;
@ -98,7 +98,7 @@ do_test unique-2.3 {
catchsql {
INSERT INTO t2 VALUES(1,5);
}
} {1 {uniqueness constraint failed}}
} {1 {column a is not unique}}
do_test unique-2.4 {
catchsql {
SELECT * FROM t2 ORDER BY a
@ -162,7 +162,7 @@ do_test unique-3.4 {
INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5);
SELECT * FROM t3 ORDER BY a,b,c,d;
}
} {1 {uniqueness constraint failed}}
} {1 {columns a, c, d are not unique}}
integrity_check unique-3.5
# Make sure NULLs are distinct as far as the UNIQUE tests are
@ -198,4 +198,35 @@ do_test unique-4.5 {
} {1 2 3 {} 2 {} {} 3 4 2 2 {}}
integrity_check unique-4.6
# Test the error message generation logic. In particular, make sure we
# do not overflow the static buffer used to generate the error message.
#
do_test unique-5.1 {
execsql {
CREATE TABLE t5(
first_column_with_long_name,
second_column_with_long_name,
third_column_with_long_name,
fourth_column_with_long_name,
fifth_column_with_long_name,
sixth_column_with_long_name,
UNIQUE(
first_column_with_long_name,
second_column_with_long_name,
third_column_with_long_name,
fourth_column_with_long_name,
fifth_column_with_long_name,
sixth_column_with_long_name
)
);
INSERT INTO t5 VALUES(1,2,3,4,5,6);
SELECT * FROM t5;
}
} {1 2 3 4 5 6}
do_test unique-5.2 {
catchsql {
INSERT INTO t5 VALUES(1,2,3,4,5,6);
}
} {1 {columns first_column_with_long_name, second_column_with_long_name, third_column_with_long_name, fourth_column_with_long_name, fifth_column_with_long_name, ... are not unique}}
finish_test