[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/tool/mkspeedsql.tcl

-# 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;}