| Index: third_party/sqlite/sqlite-src-3080704/test/speed1p.explain
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| diff --git a/third_party/sqlite/sqlite-src-3080704/test/speed1p.explain b/third_party/sqlite/sqlite-src-3080704/test/speed1p.explain
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..e32feddf304e2940ae4cedbf53fb9d2cf9b4106d
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| --- /dev/null
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| +++ b/third_party/sqlite/sqlite-src-3080704/test/speed1p.explain
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| @@ -0,0 +1,366 @@
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| +# 2008 March 21
|
| +#
|
| +# The author disclaims copyright to this source code. In place of
|
| +# a legal notice, here is a blessing:
|
| +#
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| +# May you do good and not evil.
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| +# May you find forgiveness for yourself and forgive others.
|
| +# May you share freely, never taking more than you give.
|
| +#
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| +#*************************************************************************
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| +# This file implements regression tests for SQLite library. The
|
| +# focus of this script is measuring executing speed.
|
| +#
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| +# This is a copy of speed1.test modified to user prepared statements.
|
| +#
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| +# $Id: speed1p.explain,v 1.1 2008/04/16 12:57:48 drh Exp $
|
| +#
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| +
|
| +set testdir [file dirname $argv0]
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| +source $testdir/tester.tcl
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| +speed_trial_init speed1
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| +
|
| +# Set a uniform random seed
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| +expr srand(0)
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| +
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| +set sqlout [open speed1.txt w]
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| +proc tracesql {sql} {
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| + puts $::sqlout $sql\;
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| +}
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| +#db trace tracesql
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| +
|
| +# The number_name procedure below converts its argment (an integer)
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| +# into a string which is the English-language name for that number.
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| +#
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| +# Example:
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| +#
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| +# puts [number_name 123] -> "one hundred twenty three"
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| +#
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| +set ones {zero one two three four five six seven eight nine
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| + ten eleven twelve thirteen fourteen fifteen sixteen seventeen
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| + eighteen nineteen}
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| +set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
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| +proc number_name {n} {
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| + if {$n>=1000} {
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| + set txt "[number_name [expr {$n/1000}]] thousand"
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| + set n [expr {$n%1000}]
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| + } else {
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| + set txt {}
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| + }
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| + if {$n>=100} {
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| + append txt " [lindex $::ones [expr {$n/100}]] hundred"
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| + set n [expr {$n%100}]
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| + }
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| + if {$n>=20} {
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| + append txt " [lindex $::tens [expr {$n/10}]]"
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| + set n [expr {$n%10}]
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| + }
|
| + if {$n>0} {
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| + append txt " [lindex $::ones $n]"
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| + }
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| + set txt [string trim $txt]
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| + if {$txt==""} {set txt zero}
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| + return $txt
|
| +}
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| +
|
| +# Create a database schema.
|
| +#
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| +do_test speed1p-1.0 {
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| + execsql {
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| + PRAGMA page_size=1024;
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| + PRAGMA cache_size=8192;
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| + PRAGMA locking_mode=EXCLUSIVE;
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| + CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
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| + CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
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| + CREATE INDEX i2a ON t2(a);
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| + CREATE INDEX i2b ON t2(b);
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| + }
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| + execsql {
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| + SELECT name FROM sqlite_master ORDER BY 1;
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| + }
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| +} {i2a i2b t1 t2}
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| +
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| +
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| +# 50000 INSERTs on an unindexed table
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| +#
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| +set list {}
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| +for {set i 1} {$i<=50000} {incr i} {
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| + set r [expr {int(rand()*500000)}]
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| + set x [number_name $r]
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| + lappend list $i $r $x
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| +}
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| +set script {
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| + foreach {i r x} $::list {
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| + db eval {INSERT INTO t1 VALUES($i,$r,$x)}
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| + }
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| +}
|
| +explain {INSERT INTO t1 VALUES($i,$r,$x)}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-insert1 50000 row $script
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| +db eval COMMIT
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| +
|
| +# 50000 INSERTs on an indexed table
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| +#
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| +set list {}
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| +for {set i 1} {$i<=50000} {incr i} {
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| + set r [expr {int(rand()*500000)}]
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| + set x [number_name $r]
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| + lappend list $i $r $x
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| +}
|
| +set script {
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| + foreach {i r x} $::list {
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| + db eval {INSERT INTO t2 VALUES($i,$r,$x)}
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| + }
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| +}
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| +explain {INSERT INTO t2 VALUES($i,$r,$x)}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-insert2 50000 row $script
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| +db eval COMMIT
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| +
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| +
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| +
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| +# 50 SELECTs on an integer comparison. There is no index so
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| +# a full table scan is required.
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| +#
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| +set list {}
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| +for {set i 0} {$i<50} {incr i} {
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| + set lwr [expr {$i*100}]
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| + set upr [expr {($i+10)*100}]
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| + lappend list $lwr $upr
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| +}
|
| +set script {
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| + foreach {lwr upr} $::list {
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| + db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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| + }
|
| +}
|
| +explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
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| +db eval COMMIT
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| +
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| +# 50 SELECTs on an LIKE comparison. There is no index so a full
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| +# table scan is required.
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| +#
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| +set list {}
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| +for {set i 0} {$i<50} {incr i} {
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| + lappend list "%[number_name $i]%"
|
| +}
|
| +set script {
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| + foreach pattern $::list {
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| + db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
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| + }
|
| +}
|
| +explain {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
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| +db eval COMMIT
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| +
|
| +# Create indices
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| +#
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| +explain {CREATE INDEX i1a ON t1(a)}
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| +explain {CREATE INDEX i1b ON t1(b)}
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| +db eval BEGIN
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| +speed_trial speed1p-createidx 150000 row {
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| + CREATE INDEX i1a ON t1(a);
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| + CREATE INDEX i1b ON t1(b);
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| + CREATE INDEX i1c ON t1(c);
|
| +}
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| +db eval COMMIT
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| +
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| +# 5000 SELECTs on an integer comparison where the integer is
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| +# indexed.
|
| +#
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| +set list {}
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| +for {set i 0} {$i<5000} {incr i} {
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| + set lwr [expr {$i*100}]
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| + set upr [expr {($i+10)*100}]
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| + lappend list $lwr $upr
|
| +}
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| +set script {
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| + foreach {lwr upr} $::list {
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| + db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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| + }
|
| +}
|
| +explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select3 5000 stmt $script
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| +db eval COMMIT
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| +
|
| +# 100000 random SELECTs against rowid.
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| +#
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| +set list {}
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| +for {set i 1} {$i<=100000} {incr i} {
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| + set id [expr {int(rand()*50000)+1}]
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| + lappend list $id
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| +}
|
| +set script {
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| + foreach id $::list {
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| + db eval {SELECT c FROM t1 WHERE rowid=$id}
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| + }
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| +}
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| +explain {SELECT c FROM t1 WHERE rowid=$id}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select4 100000 row $script
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| +db eval COMMIT
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| +
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| +# 100000 random SELECTs against a unique indexed column.
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| +#
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| +set list {}
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| +for {set i 1} {$i<=100000} {incr i} {
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| + set id [expr {int(rand()*50000)+1}]
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| + lappend list $id
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| +}
|
| +set script {
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| + foreach id $::list {
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| + db eval {SELECT c FROM t1 WHERE a=$id}
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| + }
|
| +}
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| +explain {SELECT c FROM t1 WHERE a=$id}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select5 100000 row $script
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| +db eval COMMIT
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| +
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| +# 50000 random SELECTs against an indexed column text column
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| +#
|
| +set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
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| +set script {
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| + foreach c $::list {
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| + db eval {SELECT c FROM t1 WHERE c=$c}
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| + }
|
| +}
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| +explain {SELECT c FROM t1 WHERE c=$c}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-select6 50000 row $script
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| +db eval COMMIT
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| +
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| +
|
| +# Vacuum
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| +speed_trial speed1p-vacuum 100000 row VACUUM
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| +
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| +# 5000 updates of ranges where the field being compared is indexed.
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| +#
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| +set list {}
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| +for {set i 0} {$i<5000} {incr i} {
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| + set lwr [expr {$i*2}]
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| + set upr [expr {($i+1)*2}]
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| + lappend list $lwr $upr
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| +}
|
| +set script {
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| + foreach {lwr upr} $::list {
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| + db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
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| + }
|
| +}
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| +explain {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-update1 5000 stmt $script
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| +db eval COMMIT
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| +
|
| +# 50000 single-row updates. An index is used to find the row quickly.
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| +#
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| +set list {}
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| +for {set i 0} {$i<50000} {incr i} {
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| + set r [expr {int(rand()*500000)}]
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| + lappend list $i $r
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| +}
|
| +set script {
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| + foreach {i r} $::list {
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| + db eval {UPDATE t1 SET b=$r WHERE a=$i}
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| + }
|
| +}
|
| +explain {UPDATE t1 SET b=$r WHERE a=$i}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-update2 50000 row $script
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| +db eval COMMIT
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| +
|
| +# 1 big text update that touches every row in the table.
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| +#
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| +explain {UPDATE t1 SET c=a}
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| +speed_trial speed1p-update3 50000 row {
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| + UPDATE t1 SET c=a;
|
| +}
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| +
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| +# Many individual text updates. Each row in the table is
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| +# touched through an index.
|
| +#
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| +set list {}
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| +for {set i 1} {$i<=50000} {incr i} {
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| + set r [expr {int(rand()*500000)}]
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| + lappend list $i [number_name $r]
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| +}
|
| +set script {
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| + foreach {i x} $::list {
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| + db eval {UPDATE t1 SET c=$x WHERE a=$i}
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| + }
|
| +}
|
| +explain {UPDATE t1 SET c=$x WHERE a=$i}
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| +db eval BEGIN
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| +speed_trial_tcl speed1p-update4 50000 row $script
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| +db eval COMMIT
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| +
|
| +# Delete all content in a table.
|
| +#
|
| +explain {DELETE FROM t1}
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| +speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
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| +
|
| +# Copy one table into another
|
| +#
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| +explain {INSERT INTO t1 SELECT * FROM t2}
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| +speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
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| +
|
| +# Delete all content in a table, one row at a time.
|
| +#
|
| +explain {DELETE FROM t1 WHERE 1}
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| +speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
|
| +
|
| +# Refill the table yet again
|
| +#
|
| +speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
|
| +
|
| +# Drop the table and recreate it without its indices.
|
| +#
|
| +explain {DROP TABLE t1}
|
| +explain {CREATE TABLE tX(a INTEGER, b INTEGER, c TEXT)}
|
| +db eval BEGIN
|
| +speed_trial speed1p-drop1 50000 row {
|
| + DROP TABLE t1;
|
| + CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
|
| +}
|
| +db eval COMMIT
|
| +
|
| +# Refill the table yet again. This copy should be faster because
|
| +# there are no indices to deal with.
|
| +#
|
| +speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
|
| +
|
| +# Select 20000 rows from the table at random.
|
| +#
|
| +explain {SELECT rowid FROM t1 ORDER BY random() LIMIT 20000}
|
| +speed_trial speed1p-random1 50000 row {
|
| + SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
|
| +}
|
| +
|
| +# Delete 20000 random rows from the table.
|
| +#
|
| +explain {DELETE FROM t1 WHERE rowid IN
|
| + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)}
|
| +speed_trial speed1p-random-del1 20000 row {
|
| + DELETE FROM t1 WHERE rowid IN
|
| + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
|
| +}
|
| +do_test speed1p-1.1 {
|
| + db one {SELECT count(*) FROM t1}
|
| +} 30000
|
| +
|
| +
|
| +# Delete 20000 more rows at random from the table.
|
| +#
|
| +speed_trial speed1p-random-del2 20000 row {
|
| + DELETE FROM t1 WHERE rowid IN
|
| + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
|
| +}
|
| +do_test speed1p-1.2 {
|
| + db one {SELECT count(*) FROM t1}
|
| +} 10000
|
| +speed_trial_summary speed1
|
| +
|
| +finish_test
|
|
|