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Enhance PRAGMA integrity_check so that it verifies that the string values

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stored in indexes are byte-for-byte identical to the values in the table, and
not just equivalent according to the collating sequence.
dbsqlfuzz 686e2e205e0c0594d3fb524bea0c25e621d1a870.

FossilOrigin-Name: 9302e4bfdce5905576b8f0af7d6b3a864e1dcd58ed89bb303010a1c4f826e915
This commit is contained in:
drh
2023-01-04 15:18:52 +00:00
parent cef97068cd
commit d0fe0fc531
4 changed files with 83 additions and 10 deletions
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53
test/pragma.test
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@ -582,6 +582,59 @@ do_test pragma-3.30 {
}
} {}
# The values stored in indexes must be byte-for-byte identical to the
# values stored in tables.
#
reset_db
do_execsql_test pragma-3.40 {
CREATE TABLE t1(
a INTEGER PRIMARY KEY,
b TEXT COLLATE nocase,
c INT COLLATE nocase,
d TEXT
);
INSERT INTO t1(a,b,c,d) VALUES
(1, 'one','one','one'),
(2, 'two','two','two'),
(3, 'three','three','three'),
(4, 'four','four','four'),
(5, 'five','five','five');
CREATE INDEX t1bcd ON t1(b,c,d);
CREATE TABLE t2(
a INTEGER PRIMARY KEY,
b TEXT COLLATE nocase,
c INT COLLATE nocase,
d TEXT
);
INSERT INTO t2(a,b,c,d) VALUES
(1, 'one','one','one'),
(2, 'two','two','TWO'),
(3, 'three','THREE','three'),
(4, 'FOUR','four','four'),
(5, 'FIVE','FIVE','five');
CREATE INDEX t2bcd ON t2(b,c,d);
CREATE TEMP TABLE saved_schema AS SELECT name, rootpage FROM sqlite_schema;
PRAGMA writable_schema=ON;
UPDATE sqlite_schema
SET rootpage=(SELECT rootpage FROM saved_schema WHERE name='t2bcd')
WHERE name='t1bcd';
UPDATE sqlite_schema
SET rootpage=(SELECT rootpage FROM saved_schema WHERE name='t1bcd')
WHERE name='t2bcd';
PRAGMA Writable_schema=RESET;
SELECT integrity_check AS x FROM pragma_integrity_check ORDER BY 1;
} {
{row 2 missing from index t1bcd}
{row 2 missing from index t2bcd}
{row 3 values differ from index t1bcd}
{row 3 values differ from index t2bcd}
{row 4 values differ from index t1bcd}
{row 4 values differ from index t2bcd}
{row 5 values differ from index t1bcd}
{row 5 values differ from index t2bcd}
}
db eval {DROP TABLE t2}
# Test modifying the cache_size of an attached database.
ifcapable pager_pragmas&&attach {
do_test pragma-4.1 {