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Fix a problem with mixing temp-files and mmap-mode.

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FossilOrigin-Name: c80c5c62b2e2c5e47e0839f8e2d5b6341ca4a249
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dan
2016-04-23 17:24:16 +00:00
parent 6572c16ae1
commit 2d36f065e2
4 changed files with 40 additions and 11 deletions
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29
test/temptable2.test
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@ -316,5 +316,34 @@ foreach {tn mode} {
}
}
#-------------------------------------------------------------------------
# When using mmap mode with a temp file, SQLite must search the cache
# before using a mapped page even when there is no write transaction
# open. For a temp file, the on-disk version may not be up to date.
#
sqlite3 db ""
do_execsql_test 10.0 {
PRAGMA cache_size = 50;
PRAGMA page_size = 1024;
CREATE TABLE t1(a, b, PRIMARY KEY(a)) WITHOUT ROWID;
CREATE INDEX i1 ON t1(a);
CREATE TABLE t2(x, y);
INSERT INTO t2 VALUES(1, 2);
}
do_execsql_test 10.1 {
BEGIN;
WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
COMMIT;
INSERT INTO t2 VALUES(3, 4);
}
do_execsql_test 10.2 {
PRAGMA mmap_size = 512000;
SELECT * FROM t2;
PRAGMA integrity_check;
} {512000 1 2 3 4 ok}
finish_test