Index: src/btree.c ================================================================== --- src/btree.c +++ src/btree.c @@ -3977,11 +3977,11 @@ && pBt->pPage1->aData[19]==0x01 /* (5) */ ){ u8 aSave[4]; u8 *aWrite = &pBuf[-4]; memcpy(aSave, aWrite, 4); - rc = sqlite3OsRead(fd, aWrite, a+4, pBt->pageSize * (nextPage-1)); + rc = sqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1)); nextPage = get4byte(aWrite); memcpy(aWrite, aSave, 4); }else #endif ADDED test/bigfile2.test Index: test/bigfile2.test ================================================================== --- /dev/null +++ test/bigfile2.test @@ -0,0 +1,59 @@ +# 2011 December 20 +# +# 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. The +# focus of this script testing the ability of SQLite to handle database +# files larger than 4GB. +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl +set testprefix bigfile2 + +# Create a small database. +# +do_execsql_test 1.1 { + CREATE TABLE t1(a, b); + INSERT INTO t1 VALUES(1, 2); +} + +# Pad the file out to 4GB in size. Then clear the file-size field in the +# db header. This will cause SQLite to assume that the first 4GB of pages +# are actually in use and new pages will be appended to the file. +# +db close +if {[catch {fake_big_file 4096 [pwd]/test.db} msg]} { + puts "**** Unable to create a file larger than 4096 MB. *****" + finish_test + return +} +hexio_write test.db 28 00000000 + +do_test 1.2 { + file size test.db +} [expr 14 + 4096 * (1<<20)] + +# Now insert a large row. The overflow pages will be located past the 4GB +# boundary. Then, after opening and closing the database, test that the row +# can be read back in. +# +set str [string repeat k 30000] +do_test 1.3 { + sqlite3 db test.db + execsql { INSERT INTO t1 VALUES(3, $str) } + db close + sqlite3 db test.db + db one { SELECT b FROM t1 WHERE a = 3 } +} $str + +db close +file delete test.db + +finish_test