83 lines
2.5 KiB
Plaintext
83 lines
2.5 KiB
Plaintext
# 2011 February 21
|
|
#
|
|
# 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.
|
|
#
|
|
#***********************************************************************
|
|
# This file implements regression tests for SQLite library.
|
|
#
|
|
# This file implements tests to verify that ticket [b72787b1a7] has been
|
|
# fixed. From the ticket:
|
|
#
|
|
# The sqlite3ExpirePreparedStatements routine marks all statements
|
|
# as expired. This includes statements that are not expired.
|
|
#
|
|
# Steps to reproduce:
|
|
#
|
|
# * Prepare a statement (A)
|
|
# * Alter the schema to invalidate cookie in A
|
|
# * Prepare a statement (B)
|
|
# * Run B and have A run as part of B
|
|
# * A will find a bad cookie and cause *all* statements
|
|
# to be expired including the currently running B by calling
|
|
# sqlite3ExpirePreparedStatements
|
|
# * When control returns to B it will then abort
|
|
#
|
|
# The bug is that sqlite3ExpirePreparedStatements expires all statements.
|
|
# Note that B was prepared after the schema change and hence is perfectly
|
|
# valid and then is marked as expired while running.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
ifcapable !compound {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
unset -nocomplain ::STMT
|
|
proc runsql {} {
|
|
db eval {CREATE TABLE IF NOT EXISTS t4(q)}
|
|
sqlite3_step $::STMT
|
|
set rc [sqlite3_column_int $::STMT 0]
|
|
sqlite3_reset $::STMT
|
|
return $rc
|
|
}
|
|
|
|
do_test tkt-b72787b1.1 {
|
|
db eval {
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES(1);
|
|
INSERT INTO t1 VALUES(2);
|
|
CREATE TABLE t2(y);
|
|
INSERT INTO t2 SELECT x+2 FROM t1;
|
|
INSERT INTO t2 SELECT x+4 FROM t1;
|
|
}
|
|
db func runsql ::runsql
|
|
set DB [sqlite3_connection_pointer db]
|
|
set sql {SELECT max(x) FROM t1}
|
|
set ::STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
|
|
|
|
# The runsql() call on the second row of the first query will
|
|
# cause all $::STMT to hit an expired cookie. Prior to the fix
|
|
# for [b72787b1a7, the bad cookie would expire all statements, including
|
|
# the following compound SELECT, which would cause a fault when the
|
|
# second SELECT was reached. After the fix, the current statement
|
|
# continues to completion.
|
|
db eval {
|
|
SELECT CASE WHEN y=3 THEN y+100 WHEN y==4 THEN runsql()+200
|
|
ELSE 300+y END FROM t2
|
|
UNION ALL
|
|
SELECT * FROM t1;
|
|
}
|
|
} {103 202 305 306 1 2}
|
|
|
|
sqlite3_finalize $::STMT
|
|
|
|
finish_test
|