| Index: third_party/sqlite/tool/mkspeedsql.tcl
|
| ===================================================================
|
| --- third_party/sqlite/tool/mkspeedsql.tcl (revision 56608)
|
| +++ third_party/sqlite/tool/mkspeedsql.tcl (working copy)
|
| @@ -1,237 +0,0 @@
|
| -# 2008 October 9
|
| -#
|
| -# 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 generates SQL text used for performance testing.
|
| -#
|
| -# $Id: mkspeedsql.tcl,v 1.1 2008/10/09 17:57:34 drh Exp $
|
| -#
|
| -
|
| -# Set a uniform random seed
|
| -expr srand(0)
|
| -
|
| -# The number_name procedure below converts its argment (an integer)
|
| -# into a string which is the English-language name for that number.
|
| -#
|
| -# Example:
|
| -#
|
| -# puts [number_name 123] -> "one hundred twenty three"
|
| -#
|
| -set ones {zero one two three four five six seven eight nine
|
| - ten eleven twelve thirteen fourteen fifteen sixteen seventeen
|
| - eighteen nineteen}
|
| -set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
|
| -proc number_name {n} {
|
| - if {$n>=1000} {
|
| - set txt "[number_name [expr {$n/1000}]] thousand"
|
| - set n [expr {$n%1000}]
|
| - } else {
|
| - set txt {}
|
| - }
|
| - if {$n>=100} {
|
| - append txt " [lindex $::ones [expr {$n/100}]] hundred"
|
| - set n [expr {$n%100}]
|
| - }
|
| - if {$n>=20} {
|
| - append txt " [lindex $::tens [expr {$n/10}]]"
|
| - set n [expr {$n%10}]
|
| - }
|
| - if {$n>0} {
|
| - append txt " [lindex $::ones $n]"
|
| - }
|
| - set txt [string trim $txt]
|
| - if {$txt==""} {set txt zero}
|
| - return $txt
|
| -}
|
| -
|
| -# Create a database schema.
|
| -#
|
| -puts {
|
| - PRAGMA page_size=1024;
|
| - PRAGMA cache_size=8192;
|
| - PRAGMA locking_mode=EXCLUSIVE;
|
| - CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
|
| - CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
|
| - CREATE INDEX i2a ON t2(a);
|
| - CREATE INDEX i2b ON t2(b);
|
| - SELECT name FROM sqlite_master ORDER BY 1;
|
| -}
|
| -
|
| -
|
| -# 50000 INSERTs on an unindexed table
|
| -#
|
| -set t1c_list {}
|
| -puts {BEGIN;}
|
| -for {set i 1} {$i<=50000} {incr i} {
|
| - set r [expr {int(rand()*500000)}]
|
| - set x [number_name $r]
|
| - lappend t1c_list $x
|
| - puts "INSERT INTO t1 VALUES($i,$r,'$x');"
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# 50000 INSERTs on an indexed table
|
| -#
|
| -puts {BEGIN;}
|
| -for {set i 1} {$i<=50000} {incr i} {
|
| - set r [expr {int(rand()*500000)}]
|
| - puts "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');"
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -
|
| -# 50 SELECTs on an integer comparison. There is no index so
|
| -# a full table scan is required.
|
| -#
|
| -for {set i 0} {$i<50} {incr i} {
|
| - set lwr [expr {$i*100}]
|
| - set upr [expr {($i+10)*100}]
|
| - puts "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
|
| -}
|
| -
|
| -# 50 SELECTs on an LIKE comparison. There is no index so a full
|
| -# table scan is required.
|
| -#
|
| -for {set i 0} {$i<50} {incr i} {
|
| - puts "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';"
|
| -}
|
| -
|
| -# Create indices
|
| -#
|
| -puts {BEGIN;}
|
| -puts {
|
| - CREATE INDEX i1a ON t1(a);
|
| - CREATE INDEX i1b ON t1(b);
|
| - CREATE INDEX i1c ON t1(c);
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# 5000 SELECTs on an integer comparison where the integer is
|
| -# indexed.
|
| -#
|
| -set sql {}
|
| -for {set i 0} {$i<5000} {incr i} {
|
| - set lwr [expr {$i*100}]
|
| - set upr [expr {($i+10)*100}]
|
| - puts "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
|
| -}
|
| -
|
| -# 100000 random SELECTs against rowid.
|
| -#
|
| -for {set i 1} {$i<=100000} {incr i} {
|
| - set id [expr {int(rand()*50000)+1}]
|
| - puts "SELECT c FROM t1 WHERE rowid=$id;"
|
| -}
|
| -
|
| -# 100000 random SELECTs against a unique indexed column.
|
| -#
|
| -for {set i 1} {$i<=100000} {incr i} {
|
| - set id [expr {int(rand()*50000)+1}]
|
| - puts "SELECT c FROM t1 WHERE a=$id;"
|
| -}
|
| -
|
| -# 50000 random SELECTs against an indexed column text column
|
| -#
|
| -set nt1c [llength $t1c_list]
|
| -for {set i 0} {$i<50000} {incr i} {
|
| - set r [expr {int(rand()*$nt1c)}]
|
| - set c [lindex $t1c_list $i]
|
| - puts "SELECT c FROM t1 WHERE c='$c';"
|
| -}
|
| -
|
| -
|
| -# Vacuum
|
| -puts {VACUUM;}
|
| -
|
| -# 5000 updates of ranges where the field being compared is indexed.
|
| -#
|
| -puts {BEGIN;}
|
| -for {set i 0} {$i<5000} {incr i} {
|
| - set lwr [expr {$i*2}]
|
| - set upr [expr {($i+1)*2}]
|
| - puts "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;"
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# 50000 single-row updates. An index is used to find the row quickly.
|
| -#
|
| -puts {BEGIN;}
|
| -for {set i 0} {$i<50000} {incr i} {
|
| - set r [expr {int(rand()*500000)}]
|
| - puts "UPDATE t1 SET b=$r WHERE a=$i;"
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# 1 big text update that touches every row in the table.
|
| -#
|
| -puts {
|
| - UPDATE t1 SET c=a;
|
| -}
|
| -
|
| -# Many individual text updates. Each row in the table is
|
| -# touched through an index.
|
| -#
|
| -puts {BEGIN;}
|
| -for {set i 1} {$i<=50000} {incr i} {
|
| - set r [expr {int(rand()*500000)}]
|
| - puts "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;"
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# Delete all content in a table.
|
| -#
|
| -puts {DELETE FROM t1;}
|
| -
|
| -# Copy one table into another
|
| -#
|
| -puts {INSERT INTO t1 SELECT * FROM t2;}
|
| -
|
| -# Delete all content in a table, one row at a time.
|
| -#
|
| -puts {DELETE FROM t1 WHERE 1;}
|
| -
|
| -# Refill the table yet again
|
| -#
|
| -puts {INSERT INTO t1 SELECT * FROM t2;}
|
| -
|
| -# Drop the table and recreate it without its indices.
|
| -#
|
| -puts {BEGIN;}
|
| -puts {
|
| - DROP TABLE t1;
|
| - CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
|
| -}
|
| -puts {COMMIT;}
|
| -
|
| -# Refill the table yet again. This copy should be faster because
|
| -# there are no indices to deal with.
|
| -#
|
| -puts {INSERT INTO t1 SELECT * FROM t2;}
|
| -
|
| -# Select 20000 rows from the table at random.
|
| -#
|
| -puts {
|
| - SELECT rowid FROM t1 ORDER BY random() LIMIT 20000;
|
| -}
|
| -
|
| -# Delete 20000 random rows from the table.
|
| -#
|
| -puts {
|
| - DELETE FROM t1 WHERE rowid IN
|
| - (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000);
|
| -}
|
| -puts {SELECT count(*) FROM t1;}
|
| -
|
| -# Delete 20000 more rows at random from the table.
|
| -#
|
| -puts {
|
| - DELETE FROM t1 WHERE rowid IN
|
| - (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000);
|
| -}
|
| -puts {SELECT count(*) FROM t1;}
|
|
|