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# 2024-02-03
#
# 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.
#
#***********************************************************************
#
# ROLLBACK in the middle of an RTREE query
#
if {![info exists testdir]} {
set testdir [file join [file dirname [info script]] .. .. test]
}
source $testdir/tester.tcl
set testprefix rtreeJ
do_execsql_test 1.0 {
CREATE VIRTUAL TABLE t1 USING rtree(id, x1, x2);
INSERT INTO t1 VALUES(1, 1, 1), (2, 2, 2);
} {}
do_execsql_test 1.1 {
SELECT * FROM t1
} {1 1.0 1.0 2 2.0 2.0}
# If a ROLLBACK occurs that backs out changes to the RTREE, then
# all pending queries to the RTREE are aborted.
#
do_test 1.2 {
db eval {
BEGIN;
INSERT INTO t1 VALUES(3, 3, 3);
INSERT INTO t1 VALUES(4, 4, 4);
}
set rc [catch {
db eval { SELECT * FROM t1 } {
if {$id==1} {
db eval { ROLLBACK }
}
lappend res $id $x1 $x2
}
} msg]
list $rc $msg
} {1 {abort due to ROLLBACK}}
do_execsql_test 1.3 {
SELECT * FROM t1;
} {1 1.0 1.0 2 2.0 2.0}
# A COMMIT of changes to the RTREE does not affect pending queries
#
do_test 1.4 {
set res {}
db eval {
BEGIN;
INSERT INTO t1 VALUES(5, 5, 5);
INSERT INTO t1 VALUES(6, 6, 6);
}
db eval { SELECT * FROM t1 } {
if {$id==1} {
db eval { COMMIT }
}
lappend res $id $x1 $x2
}
set res
} {1 1.0 1.0 2 2.0 2.0 5 5.0 5.0 6 6.0 6.0}
do_execsql_test 1.5 {
SELECT * FROM t1;
} {1 1.0 1.0 2 2.0 2.0 5 5.0 5.0 6 6.0 6.0}
do_execsql_test 1.6 {
DELETE FROM t1;
INSERT INTO t1 VALUES(1,1,1),(2,2,2),(3,3,3),(4,4,4);
CREATE TABLE t2(x);
SELECT * FROM t1;
} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0 4 4.0 4.0}
# A rollback that does not affect the rtree table because
# the rtree table has not been written to does not cause
# a query abort.
#
do_test 1.7 {
set res {}
db eval {
BEGIN;
INSERT INTO t2(x) VALUES(12345);
}
db eval { SELECT * FROM t1 } {
if {$id==1} {
db eval { ROLLBACK }
}
lappend res $id $x1 $x2
}
set res
} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0 4 4.0 4.0}
# ROLLBACK TO that affects the RTREE does cause a query abort.
#
do_test 1.8 {
db eval {
DELETE FROM t1 WHERE rowid>1;
BEGIN;
DELETE FROM t2;
INSERT INTO t2(x) VALUES(23456);
SAVEPOINT 'one';
INSERT INTO t1 VALUES(2,2,2),(3,3,3);
}
set rc [catch {
db eval { SELECT * FROM t1 } {
if {$id==1} {
db eval { ROLLBACK TO 'one'; }
}
lappend res $id $x1 $x2
}
} msg]
list $rc $msg
} {1 {abort due to ROLLBACK}}
do_execsql_test 1.9 {
COMMIT;
SELECT * FROM t1;
} {1 1.0 1.0}
# ROLLBACK TO that does not affect the RTREE does not cause a query abort.
#
do_execsql_test 1.10 {
DELETE FROM t1;
INSERT INTO t1 VALUES(1,1,1),(2,2,2),(3,3,3);
BEGIN;
DELETE FROM t2;
INSERT INTO t2(x) VALUES(34567);
SAVEPOINT 'one';
INSERT INTO t2(x) VALUES('a string');
SELECT * FROM t1;
} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}
do_test 1.11 {
set rc [catch {
set res {}
db eval { SELECT * FROM t1 } {
if {$id==2} {
# db eval { ROLLBACK TO 'one'; }
}
lappend res $id $x1 $x2
}
set res
} msg]
list $rc $msg
} {0 {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}}
do_execsql_test 1.12 {
COMMIT;
SELECT * FROM t1;
} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}
finish_test
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