mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-15 21:29:01 +00:00
100 lines
2.9 KiB
Plaintext
100 lines
2.9 KiB
Plaintext
# 2016 March 3
|
|
#
|
|
# The author disclaims copyright to this source code. In place of
|
|
# a legal notice, here is a blessing:
|
|
#
|
|
# May you do good and not evil.
|
|
# May you find forgiveness for yourself and forgive others.
|
|
# May you share freely, never taking more than you give.
|
|
#
|
|
#***********************************************************************
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix tempdb2
|
|
|
|
db close
|
|
sqlite3 db ""
|
|
|
|
set unlocked unlocked
|
|
if {$::TEMP_STORE>=2} { set unlocked unknown }
|
|
|
|
proc int2str {i} { string range [string repeat "$i." 450] 0 899 }
|
|
db func int2str int2str
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
# 1.1: Write a big transaction to the db. One so large that it forces
|
|
# the file to be created and the cache flushed to disk on COMMIT.
|
|
#
|
|
# 1.2: Write a small transaction - one small enough that it remains in
|
|
# memory on COMMIT. All the pages of table [t1] are now dirty.
|
|
#
|
|
# 1.3: Delete the contents of [t1]. This moves all of its leaves to the
|
|
# free-list and causes the btree layer to call PagerDontWrite() on
|
|
# each of them.
|
|
#
|
|
# Then do a big update on table [t2]. So big that the former leaves
|
|
# of [t1] are forced out of the cache. Then roll back the transaction.
|
|
# If the PagerDontWrite() calls are honoured and the data is not written
|
|
# to disk, the update made in test 1.2 will be lost at this point. Or, if
|
|
# they are ignored (as they should be for temp databases), the update
|
|
# will be safely written out to disk before the cache entries are
|
|
# discarded.
|
|
#
|
|
do_execsql_test 1.1 {
|
|
PRAGMA page_size=1024;
|
|
PRAGMA cache_size=50;
|
|
|
|
BEGIN;
|
|
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
|
|
INSERT INTO t1 VALUES(1, int2str(1));
|
|
INSERT INTO t1 VALUES(2, int2str(1));
|
|
INSERT INTO t1 VALUES(3, int2str(1));
|
|
|
|
CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
|
|
WITH c(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100 )
|
|
INSERT INTO t2 SELECT x, int2str(x) FROM c;
|
|
COMMIT;
|
|
|
|
PRAGMA lock_status;
|
|
} [list main $unlocked temp closed]
|
|
|
|
do_execsql_test 1.2 {
|
|
UPDATE t1 SET b=int2str(2);
|
|
SELECT b=int2str(2) FROM t1
|
|
} {1 1 1}
|
|
|
|
do_execsql_test 1.3 {
|
|
BEGIN;
|
|
DELETE FROM t1;
|
|
UPDATE t2 SET b=int2str(a+1);
|
|
ROLLBACK;
|
|
}
|
|
|
|
do_execsql_test 1.4 {
|
|
SELECT b=int2str(2) FROM t1
|
|
} {1 1 1}
|
|
|
|
#-------------------------------------------------------------------------
|
|
db close
|
|
sqlite3 db ""
|
|
db func int2str int2str
|
|
|
|
do_execsql_test 2.0 {
|
|
PRAGMA cache_size = -100;
|
|
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
|
|
WITH c(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100 )
|
|
INSERT INTO t1 SELECT x, int2str(x) FROM c;
|
|
}
|
|
|
|
do_execsql_test 2.1 {
|
|
INSERT INTO t1 VALUES(10001, int2str(1001) || int2str(1001) || int2str(1001));
|
|
}
|
|
|
|
do_execsql_test 2.2 {
|
|
SELECT b FROM t1 WHERE a = 10001;
|
|
} "[int2str 1001][int2str 1001][int2str 1001]"
|
|
|
|
finish_test
|