mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-15 07:29:41 +00:00
109 lines
3.1 KiB
Plaintext
109 lines
3.1 KiB
Plaintext
# 2017 August 07
|
|
#
|
|
# 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 use mmap
|
|
# to access files larger than 4GiB.
|
|
#
|
|
|
|
if {[file exists skip-big-file]} return
|
|
if {$tcl_platform(os)=="Darwin"} return
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix bigmmap
|
|
|
|
ifcapable !mmap||!vtab {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
set mmap_limit 0
|
|
db eval {
|
|
SELECT compile_options AS x FROM pragma_compile_options
|
|
WHERE x LIKE 'max_mmap_size=%'
|
|
} {
|
|
regexp {MAX_MMAP_SIZE=([0-9]*)} $x -> mmap_limit
|
|
}
|
|
if {$mmap_limit < [expr 8 * 1<<30]} {
|
|
puts "Skipping bigmmap.test - requires SQLITE_MAX_MMAP_SIZE >= 8G"
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Create the database file roughly 8GiB in size. Most pages are unused,
|
|
# except that there is a table and index clustered around each 1GiB
|
|
# boundary.
|
|
#
|
|
do_execsql_test 1.0 {
|
|
PRAGMA page_size = 4096;
|
|
CREATE TABLE t0(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
|
|
WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 100 )
|
|
INSERT INTO t0 SELECT i, 't0', randomblob(800) FROM s;
|
|
}
|
|
|
|
for {set i 1} {$i < 8} {incr i} {
|
|
if {[catch {fake_big_file [expr $i*1024] [get_pwd]/test.db}]} {
|
|
puts "Cannot create ${i}MB sparse file"
|
|
finish_test
|
|
return
|
|
}
|
|
hexio_write test.db 28 [format %.8x [expr ($i*1024*1024*1024/4096) - 5]]
|
|
|
|
do_execsql_test 1.$i "
|
|
CREATE TABLE t$i (a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
|
|
WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 100 )
|
|
INSERT INTO t$i SELECT i, 't$i', randomblob(800) FROM s;
|
|
"
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Check that data can be retrieved from the db with a variety of
|
|
# configured mmap size limits.
|
|
#
|
|
for {set i 0} {$i < 9} {incr i} {
|
|
|
|
# Configure a memory mapping $i GB in size.
|
|
#
|
|
set val [expr $i*1024*1024*1024]
|
|
execsql "PRAGMA main.mmap_size = $val"
|
|
do_execsql_test 2.$i.0 {
|
|
PRAGMA main.mmap_size
|
|
} $val
|
|
|
|
for {set t 0} {$t < 8} {incr t} {
|
|
do_execsql_test 2.$i.$t.1 "
|
|
SELECT count(*) FROM t$t;
|
|
SELECT count(b || c) FROM t$t GROUP BY b;
|
|
" {100 100}
|
|
|
|
do_execsql_test 2.$i.$t.2 "
|
|
SELECT * FROM t$t AS o WHERE
|
|
NOT EXISTS( SELECT * FROM t$t AS i WHERE a=o.a AND +b=o.b AND +c=o.c )
|
|
ORDER BY b, c;
|
|
" {}
|
|
|
|
do_eqp_test 2.$i.$t.3 "
|
|
SELECT * FROM t$t AS o WHERE
|
|
NOT EXISTS( SELECT * FROM t$t AS i WHERE a=o.a AND +b=o.b AND +c=o.c )
|
|
ORDER BY b, c;
|
|
" [string map {"\n " "\n"} "
|
|
QUERY PLAN
|
|
|--SCAN o USING COVERING INDEX sqlite_autoindex_t${t}_1
|
|
`--CORRELATED SCALAR SUBQUERY xxxxxx
|
|
`--SEARCH i USING INTEGER PRIMARY KEY (rowid=?)
|
|
"]
|
|
}
|
|
}
|
|
|
|
finish_test
|