SQLite

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing SELECT statements that contain
# subqueries in their FROM clause.
#
# $Id: select6.test,v 1.26 2006/11/30 13:06:00 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Omit this whole file if the library is build without subquery support.
ifcapable !subquery {
  finish_test

    SELECT q, p, r, b.[min(x)+y]
    FROM (SELECT count(*) as p , y as q FROM t1 GROUP BY y) AS a,
         (SELECT max(x) as r, y as s, min(x)+y FROM t1 GROUP BY y) as b
    WHERE q=s ORDER BY s
  }
} {1 1 1 2 2 2 3 4 3 4 7 7 4 8 15 12 5 5 20 21}

do_test select6-2.0 {
  execsql {
    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
    INSERT INTO t2 SELECT * FROM t1;
    SELECT DISTINCT b FROM t2 ORDER BY b;
  }
} {1 2 3 4 5}
do_test select6-2.1 {

# 2006 November 23
#
# 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 is measuring executing speed.
#
# $Id: speed1.test,v 1.2 2006/11/30 13:06:00 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

set sqlout [open speed1.txt w]
proc tracesql {sql} {
  puts $::sqlout $sql\;
}
db trace tracesql

# 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"

  return $txt
}

# Create a database schema.
#
do_test speed1-1.0 {
  execsql {
pragma page_size=4096;
    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;
  }
} {i2a i2b t1 t2}

  set upr [expr {($i+10)*100}]
  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
}
db eval BEGIN
speed_trial speed1-select3 5000 stmt $sql
db eval COMMIT

# 100000 random SELECTs against rowid.
#
set sql {}
for {set i 1} {$i<=100000} {incr i} {
  set id [expr {int(rand()*50000)+1}]
  append sql "SELECT c FROM t1 WHERE rowid=$id;"
}
db eval BEGIN
speed_trial speed1-select4 100000 row $sql
db eval COMMIT

# 100000 random SELECTs against a unique indexed column.
#
set sql {}
for {set i 1} {$i<=100000} {incr i} {
  set id [expr {int(rand()*50000)+1}]
  append sql "SELECT c FROM t1 WHERE a=$id;"
}
db eval BEGIN
speed_trial speed1-select5 100000 row $sql
db eval COMMIT

# 50000 random SELECTs against an indexed column text column
#
set sql {}
db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} {
  append sql "SELECT c FROM t1 WHERE c='$c';"
}
db eval BEGIN
speed_trial speed1-select6 50000 row $sql
db eval COMMIT


# Vacuum
speed_trial speed1-vacuum 100000 row VACUUM

# 5000 updates of ranges where the field being compared is indexed.