464 lines
14 KiB
Plaintext
464 lines
14 KiB
Plaintext
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# 2005 December 30
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# The focus of the tests in this file are IO errors that occur in a shared
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# cache context. What happens to connection B if one connection A encounters
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# an IO-error whilst reading or writing the file-system?
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#
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# $Id: shared_err.test,v 1.17 2007/09/03 16:12:10 drh Exp $
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proc skip {args} {}
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/malloc_common.tcl
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db close
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ifcapable !shared_cache||!subquery {
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finish_test
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return
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}
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set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
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do_ioerr_test shared_ioerr-1 -tclprep {
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sqlite3 db2 test.db
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execsql {
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PRAGMA read_uncommitted = 1;
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CREATE TABLE t1(a,b,c);
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BEGIN;
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SELECT * FROM sqlite_master;
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} db2
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} -sqlbody {
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SELECT * FROM sqlite_master;
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INSERT INTO t1 VALUES(1,2,3);
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BEGIN TRANSACTION;
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(4,5,6);
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ROLLBACK;
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SELECT * FROM t1;
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BEGIN TRANSACTION;
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(4,5,6);
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COMMIT;
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SELECT * FROM t1;
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DELETE FROM t1 WHERE a<100;
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} -cleanup {
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do_test shared_ioerr-1.$n.cleanup.1 {
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set res [catchsql {
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SELECT * FROM t1;
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} db2]
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set possible_results [list \
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"1 {disk I/O error}" \
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"0 {1 2 3}" \
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"0 {1 2 3 1 2 3 4 5 6}" \
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"0 {1 2 3 1 2 3 4 5 6 1 2 3 4 5 6}" \
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"0 {}" \
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]
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set rc [expr [lsearch -exact $possible_results $res] >= 0]
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if {$rc != 1} {
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puts ""
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puts "Result: $res"
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}
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set rc
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} {1}
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db2 close
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}
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do_ioerr_test shared_ioerr-2 -tclprep {
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sqlite3 db2 test.db
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execsql {
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PRAGMA read_uncommitted = 1;
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BEGIN;
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CREATE TABLE t1(a, b);
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INSERT INTO t1(oid) VALUES(NULL);
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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INSERT INTO t1(oid) SELECT NULL FROM t1;
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UPDATE t1 set a = oid, b = 'abcdefghijklmnopqrstuvwxyz0123456789';
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CREATE INDEX i1 ON t1(a);
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COMMIT;
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BEGIN;
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SELECT * FROM sqlite_master;
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} db2
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} -tclbody {
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set ::residx 0
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execsql {DELETE FROM t1 WHERE 0 = (a % 2);}
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incr ::residx
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# When this transaction begins the table contains 512 entries. The
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# two statements together add 512+146 more if it succeeds.
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# (1024/7==146)
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execsql {BEGIN;}
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execsql {INSERT INTO t1 SELECT a+1, b FROM t1;}
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execsql {INSERT INTO t1 SELECT 'string' || a, b FROM t1 WHERE 0 = (a%7);}
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execsql {COMMIT;}
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incr ::residx
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} -cleanup {
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do_test shared_ioerr-2.$n.cleanup.1 {
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set res [catchsql {
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SELECT max(a), min(a), count(*) FROM (SELECT a FROM t1 order by a);
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} db2]
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set possible_results [list \
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{0 {1024 1 1024}} \
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{0 {1023 1 512}} \
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{0 {string994 1 1170}} \
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]
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set idx [lsearch -exact $possible_results $res]
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set success [expr {$idx==$::residx || $res=="1 {disk I/O error}"}]
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if {!$success} {
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puts ""
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puts "Result: \"$res\" ($::residx)"
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}
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set success
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} {1}
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db2 close
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}
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# This test is designed to provoke an IO error when a cursor position is
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# "saved" (because another cursor is going to modify the underlying table).
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#
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do_ioerr_test shared_ioerr-3 -tclprep {
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sqlite3 db2 test.db
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execsql {
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PRAGMA read_uncommitted = 1;
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PRAGMA cache_size = 10;
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BEGIN;
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CREATE TABLE t1(a, b, UNIQUE(a, b));
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} db2
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for {set i 0} {$i < 200} {incr i} {
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set a [string range [string repeat "[format %03d $i]." 5] 0 end-1]
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set b [string repeat $i 2000]
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execsql {INSERT INTO t1 VALUES($a, $b)} db2
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}
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execsql {COMMIT} db2
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set ::DB2 [sqlite3_connection_pointer db2]
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set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
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sqlite3_step $::STMT ;# Cursor points at 000.000.000.000
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sqlite3_step $::STMT ;# Cursor points at 001.001.001.001
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} -tclbody {
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execsql {
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BEGIN;
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INSERT INTO t1 VALUES('201.201.201.201.201', NULL);
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UPDATE t1 SET a = '202.202.202.202.202' WHERE a LIKE '201%';
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COMMIT;
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}
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} -cleanup {
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set ::steprc [sqlite3_step $::STMT]
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set ::column [sqlite3_column_text $::STMT 0]
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set ::finalrc [sqlite3_finalize $::STMT]
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# There are three possible outcomes here (assuming persistent IO errors):
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#
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# 1. If the [sqlite3_step] did not require any IO (required pages in
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# the cache), then the next row ("002...") may be retrieved
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# successfully.
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#
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# 2. If the [sqlite3_step] does require IO, then [sqlite3_step] returns
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# SQLITE_ERROR and [sqlite3_finalize] returns IOERR.
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#
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# 3. If, after the initial IO error, SQLite tried to rollback the
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# active transaction and a second IO error was encountered, then
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# statement $::STMT will have been aborted. This means [sqlite3_stmt]
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# returns SQLITE_ABORT, and the statement cursor does not move. i.e.
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# [sqlite3_column] still returns the current row ("001...") and
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# [sqlite3_finalize] returns SQLITE_OK.
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#
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do_test shared_ioerr-3.$n.cleanup.1 {
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expr {
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$::steprc eq "SQLITE_ROW" ||
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$::steprc eq "SQLITE_ERROR" ||
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$::steprc eq "SQLITE_ABORT"
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}
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} {1}
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do_test shared_ioerr-3.$n.cleanup.2 {
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expr {
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($::steprc eq "SQLITE_ROW" && $::column eq "002.002.002.002.002") ||
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($::steprc eq "SQLITE_ERROR" && $::column eq "") ||
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($::steprc eq "SQLITE_ABORT" && $::column eq "001.001.001.001.001")
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}
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} {1}
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do_test shared_ioerr-3.$n.cleanup.3 {
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expr {
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($::steprc eq "SQLITE_ROW" && $::finalrc eq "SQLITE_OK") ||
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($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_IOERR") ||
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($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_ABORT")
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}
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} {1}
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# db2 eval {select * from sqlite_master}
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db2 close
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}
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# This is a repeat of the previous test except that this time we
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# are doing a reverse-order scan of the table when the cursor is
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# "saved".
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#
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do_ioerr_test shared_ioerr-3rev -tclprep {
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sqlite3 db2 test.db
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execsql {
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PRAGMA read_uncommitted = 1;
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PRAGMA cache_size = 10;
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BEGIN;
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CREATE TABLE t1(a, b, UNIQUE(a, b));
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} db2
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for {set i 0} {$i < 200} {incr i} {
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set a [string range [string repeat "[format %03d $i]." 5] 0 end-1]
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set b [string repeat $i 2000]
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execsql {INSERT INTO t1 VALUES($a, $b)} db2
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}
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execsql {COMMIT} db2
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set ::DB2 [sqlite3_connection_pointer db2]
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set ::STMT [sqlite3_prepare $::DB2 \
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"SELECT a FROM t1 ORDER BY a DESC" -1 DUMMY]
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sqlite3_step $::STMT ;# Cursor points at 199.199.199.199.199
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sqlite3_step $::STMT ;# Cursor points at 198.198.198.198.198
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} -tclbody {
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execsql {
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BEGIN;
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INSERT INTO t1 VALUES('201.201.201.201.201', NULL);
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UPDATE t1 SET a = '202.202.202.202.202' WHERE a LIKE '201%';
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COMMIT;
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}
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} -cleanup {
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set ::steprc [sqlite3_step $::STMT]
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set ::column [sqlite3_column_text $::STMT 0]
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set ::finalrc [sqlite3_finalize $::STMT]
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# There are three possible outcomes here (assuming persistent IO errors):
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#
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# 1. If the [sqlite3_step] did not require any IO (required pages in
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# the cache), then the next row ("002...") may be retrieved
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# successfully.
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#
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# 2. If the [sqlite3_step] does require IO, then [sqlite3_step] returns
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# SQLITE_ERROR and [sqlite3_finalize] returns IOERR.
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#
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# 3. If, after the initial IO error, SQLite tried to rollback the
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# active transaction and a second IO error was encountered, then
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# statement $::STMT will have been aborted. This means [sqlite3_stmt]
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# returns SQLITE_ABORT, and the statement cursor does not move. i.e.
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# [sqlite3_column] still returns the current row ("001...") and
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# [sqlite3_finalize] returns SQLITE_OK.
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#
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do_test shared_ioerr-3rev.$n.cleanup.1 {
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expr {
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$::steprc eq "SQLITE_ROW" ||
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$::steprc eq "SQLITE_ERROR" ||
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$::steprc eq "SQLITE_ABORT"
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}
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} {1}
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do_test shared_ioerr-3rev.$n.cleanup.2 {
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expr {
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($::steprc eq "SQLITE_ROW" && $::column eq "197.197.197.197.197") ||
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($::steprc eq "SQLITE_ERROR" && $::column eq "") ||
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($::steprc eq "SQLITE_ABORT" && $::column eq "198.198.198.198.198")
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}
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} {1}
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do_test shared_ioerr-3rev.$n.cleanup.3 {
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expr {
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($::steprc eq "SQLITE_ROW" && $::finalrc eq "SQLITE_OK") ||
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($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_IOERR") ||
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($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_ABORT")
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}
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} {1}
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# db2 eval {select * from sqlite_master}
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db2 close
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}
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# Only run these tests if memory debugging is turned on.
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#
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ifcapable !memdebug {
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puts "Skipping tests shared_err-4 through -9:\
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not compiled with -DSQLITE_MEMDEBUG..."
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db close
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sqlite3_enable_shared_cache $::enable_shared_cache
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finish_test
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return
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}
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# Provoke a malloc() failure when a cursor position is being saved. This
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# only happens with index cursors (because they malloc() space to save the
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# current key value). It does not happen with tables, because an integer
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# key does not require a malloc() to store.
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#
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# The library should return an SQLITE_NOMEM to the caller. The query that
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# owns the cursor (the one for which the position is not saved) should
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# continue unaffected.
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#
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do_malloc_test shared_err-4 -tclprep {
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sqlite3 db2 test.db
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execsql {
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PRAGMA read_uncommitted = 1;
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BEGIN;
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CREATE TABLE t1(a, b, UNIQUE(a, b));
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} db2
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for {set i 0} {$i < 5} {incr i} {
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set a [string repeat $i 10]
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set b [string repeat $i 2000]
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execsql {INSERT INTO t1 VALUES($a, $b)} db2
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}
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execsql {COMMIT} db2
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set ::DB2 [sqlite3_connection_pointer db2]
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set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
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sqlite3_step $::STMT ;# Cursor points at 0000000000
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sqlite3_step $::STMT ;# Cursor points at 1111111111
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} -tclbody {
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execsql {
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INSERT INTO t1 VALUES(6, NULL);
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}
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} -cleanup {
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do_test shared_malloc-4.$::n.cleanup.1 {
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set ::rc [sqlite3_step $::STMT]
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expr {$::rc=="SQLITE_ROW" || $::rc=="SQLITE_ERROR"}
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} {1}
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if {$::rc=="SQLITE_ROW"} {
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do_test shared_malloc-4.$::n.cleanup.2 {
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sqlite3_column_text $::STMT 0
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} {2222222222}
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}
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do_test shared_malloc-4.$::n.cleanup.3 {
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set rc [sqlite3_finalize $::STMT]
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expr {$rc=="SQLITE_OK" || $rc=="SQLITE_ABORT" || $rc=="SQLITE_NOMEM"}
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} {1}
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# db2 eval {select * from sqlite_master}
|
||
|
|
db2 close
|
||
|
|
}
|
||
|
|
|
||
|
|
do_malloc_test shared_err-5 -tclbody {
|
||
|
|
db close
|
||
|
|
sqlite3 dbX test.db
|
||
|
|
sqlite3 dbY test.db
|
||
|
|
dbX close
|
||
|
|
dbY close
|
||
|
|
} -cleanup {
|
||
|
|
catch {dbX close}
|
||
|
|
catch {dbY close}
|
||
|
|
}
|
||
|
|
|
||
|
|
do_malloc_test shared_err-6 -tclbody {
|
||
|
|
catch {db close}
|
||
|
|
sqlite3_thread_cleanup
|
||
|
|
sqlite3_enable_shared_cache 0
|
||
|
|
} -cleanup {
|
||
|
|
sqlite3_enable_shared_cache 1
|
||
|
|
}
|
||
|
|
|
||
|
|
# As of 3.5.0, sqlite3_enable_shared_cache can be called at
|
||
|
|
# any time and from any thread
|
||
|
|
#do_test shared_err-misuse-7.1 {
|
||
|
|
# sqlite3 db test.db
|
||
|
|
# catch {
|
||
|
|
# sqlite3_enable_shared_cache 0
|
||
|
|
# } msg
|
||
|
|
# set msg
|
||
|
|
#} {library routine called out of sequence}
|
||
|
|
|
||
|
|
# Again provoke a malloc() failure when a cursor position is being saved,
|
||
|
|
# this time during a ROLLBACK operation by some other handle.
|
||
|
|
#
|
||
|
|
# The library should return an SQLITE_NOMEM to the caller. The query that
|
||
|
|
# owns the cursor (the one for which the position is not saved) should
|
||
|
|
# be aborted.
|
||
|
|
#
|
||
|
|
set ::aborted 0
|
||
|
|
do_malloc_test shared_err-8 -tclprep {
|
||
|
|
sqlite3 db2 test.db
|
||
|
|
execsql {
|
||
|
|
PRAGMA read_uncommitted = 1;
|
||
|
|
BEGIN;
|
||
|
|
CREATE TABLE t1(a, b, UNIQUE(a, b));
|
||
|
|
} db2
|
||
|
|
for {set i 0} {$i < 2} {incr i} {
|
||
|
|
set a [string repeat $i 10]
|
||
|
|
set b [string repeat $i 2000]
|
||
|
|
execsql {INSERT INTO t1 VALUES($a, $b)} db2
|
||
|
|
}
|
||
|
|
execsql {COMMIT} db2
|
||
|
|
set ::DB2 [sqlite3_connection_pointer db2]
|
||
|
|
set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
|
||
|
|
sqlite3_step $::STMT ;# Cursor points at 0000000000
|
||
|
|
sqlite3_step $::STMT ;# Cursor points at 1111111111
|
||
|
|
} -tclbody {
|
||
|
|
execsql {
|
||
|
|
BEGIN;
|
||
|
|
INSERT INTO t1 VALUES(6, NULL);
|
||
|
|
ROLLBACK;
|
||
|
|
}
|
||
|
|
} -cleanup {
|
||
|
|
do_test shared_malloc-8.$::n.cleanup.1 {
|
||
|
|
lrange [execsql {
|
||
|
|
SELECT a FROM t1;
|
||
|
|
} db2] 0 1
|
||
|
|
} {0000000000 1111111111}
|
||
|
|
do_test shared_malloc-8.$::n.cleanup.2 {
|
||
|
|
set rc1 [sqlite3_step $::STMT]
|
||
|
|
set rc2 [sqlite3_finalize $::STMT]
|
||
|
|
if {$rc2=="SQLITE_ABORT"} {
|
||
|
|
incr ::aborted
|
||
|
|
}
|
||
|
|
expr {
|
||
|
|
($rc1=="SQLITE_DONE" && $rc2=="SQLITE_OK") ||
|
||
|
|
($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_ABORT") ||
|
||
|
|
($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_NOMEM")
|
||
|
|
}
|
||
|
|
} {1}
|
||
|
|
db2 close
|
||
|
|
}
|
||
|
|
do_test shared_malloc-8.X {
|
||
|
|
# Test that one or more queries were aborted due to the malloc() failure.
|
||
|
|
expr $::aborted>=1
|
||
|
|
} {1}
|
||
|
|
|
||
|
|
# This test is designed to catch a specific bug that was present during
|
||
|
|
# development of 3.5.0. If a malloc() failed while setting the page-size,
|
||
|
|
# a buffer (Pager.pTmpSpace) was being freed. This could cause a seg-fault
|
||
|
|
# later if another connection tried to use the pager.
|
||
|
|
#
|
||
|
|
# This test will crash 3.4.2.
|
||
|
|
#
|
||
|
|
do_malloc_test shared_err-9 -tclprep {
|
||
|
|
sqlite3 db2 test.db
|
||
|
|
} -sqlbody {
|
||
|
|
PRAGMA page_size = 4096;
|
||
|
|
PRAGMA page_size = 1024;
|
||
|
|
} -cleanup {
|
||
|
|
db2 eval {
|
||
|
|
CREATE TABLE abc(a, b, c);
|
||
|
|
BEGIN;
|
||
|
|
INSERT INTO abc VALUES(1, 2, 3);
|
||
|
|
ROLLBACK;
|
||
|
|
}
|
||
|
|
db2 close
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
catch {db close}
|
||
|
|
catch {db2 close}
|
||
|
|
sqlite3_enable_shared_cache $::enable_shared_cache
|
||
|
|
finish_test
|