| # 2014 March 25. |
| # |
| # 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 tests in this file verify that sorting works when the library is |
| # configured to use mmap(), but the temporary files generated by the |
| # sorter are too large to be completely mapped. |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set testprefix sort3 |
| |
| # Sort roughly 20MB of data. Once with a mmap limit of 5MB and once without. |
| # |
| foreach {itest limit} { |
| 1 5000000 |
| 2 0x7FFFFFFF |
| } { |
| sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $limit |
| do_execsql_test 1.$itest { |
| WITH r(x,y) AS ( |
| SELECT 1, randomblob(1000) |
| UNION ALL |
| SELECT x+1, randomblob(1000) FROM r |
| LIMIT 20000 |
| ) |
| SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5); |
| } { |
| 4000 4000000 |
| 4000 4000000 |
| 4000 4000000 |
| 4000 4000000 |
| 4000 4000000 |
| } |
| } |
| |
| # Sort more than 2GB of data. At one point this was causing a problem. |
| # This test might take one minute or more to run. |
| # |
| do_execsql_test 2 { |
| PRAGMA cache_size = 20000; |
| WITH r(x,y) AS ( |
| SELECT 1, randomblob(1000) |
| UNION ALL |
| SELECT x+1, randomblob(1000) FROM r |
| LIMIT 2200000 |
| ) |
| SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5); |
| } { |
| 440000 440000000 |
| 440000 440000000 |
| 440000 440000000 |
| 440000 440000000 |
| 440000 440000000 |
| } |
| |
| finish_test |
| |