| # 2014 November 26 |
| # |
| # 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. |
| # |
| #*********************************************************************** |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set testprefix bigsort |
| |
| #-------------------------------------------------------------------- |
| # At one point there was an overflow problem if the product of the |
| # cache-size and page-size was larger than 2^31. Causing an infinite |
| # loop if the product was also an integer multiple of 2^32, or |
| # inefficiency otherwise. |
| # |
| # This test causes thrashing on machines with smaller amounts of |
| # memory. Make sure the host has at least 8GB available before running |
| # this test. |
| # |
| if {[catch {exec free | grep Mem:} out] || [lindex $out 1]<8000000} { |
| finish_test |
| return |
| } |
| |
| do_execsql_test 1.0 { |
| PRAGMA page_size = 1024; |
| CREATE TABLE t1(a, b); |
| BEGIN; |
| WITH data(x,y) AS ( |
| SELECT 1, zeroblob(10000) |
| UNION ALL |
| SELECT x+1, y FROM data WHERE x < 300000 |
| ) |
| INSERT INTO t1 SELECT * FROM data; |
| COMMIT; |
| } |
| do_execsql_test 1.1 { |
| PRAGMA cache_size = 4194304; |
| CREATE INDEX i1 ON t1(a, b); |
| } |
| |
| |
| finish_test |
