Move bundled copy of sqlite one level deeper to better separate it...

third_party/sqlite/test/select9.test

-# 2008 June 24
-#
-# 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. 
-#
-# $Id: select9.test,v 1.4 2008/07/01 14:39:35 danielk1977 Exp $
-
-# The tests in this file are focused on test compound SELECT statements 
-# that have any or all of an ORDER BY, LIMIT or OFFSET clauses. As of
-# version 3.6.0, SQLite contains code to use SQL indexes where possible 
-# to optimize such statements.
-#
-
-# TODO Points:
-#
-#   * Are there any "column affinity" issues to consider?
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-#set ISQUICK 1
-
-#-------------------------------------------------------------------------
-# test_compound_select TESTNAME SELECT RESULT
-#
-#   This command is used to run multiple LIMIT/OFFSET test cases based on 
-#   the single SELECT statement passed as the second argument. The SELECT
-#   statement may not contain a LIMIT or OFFSET clause. This proc tests
-#   many statements of the form:
-#    
-#     "$SELECT limit $X offset $Y"
-#    
-#   for various values of $X and $Y.
-#    
-#   The third argument, $RESULT, should contain the expected result of
-#   the command [execsql $SELECT].
-#    
-#   The first argument, $TESTNAME, is used as the base test case name to
-#   pass to [do_test] for each individual LIMIT OFFSET test case.
-# 
-proc test_compound_select {testname sql result} {
-
-  set nCol 1
-  db eval $sql A {
-    set nCol [llength $A(*)]
-    break
-  }
-  set nRow [expr {[llength $result] / $nCol}]
-
-  set ::compound_sql $sql
-  do_test $testname { 
-    execsql $::compound_sql
-  } $result
-#return
-
-  set iLimitIncr  1
-  set iOffsetIncr 1
-  if {[info exists ::ISQUICK] && $::ISQUICK && $nRow>=5} {
-    set iOffsetIncr [expr $nRow / 5]
-    set iLimitIncr [expr $nRow / 5]
-  }
-
-  set iLimitEnd   [expr $nRow+$iLimitIncr]
-  set iOffsetEnd  [expr $nRow+$iOffsetIncr]
-
-  for {set iOffset 0} {$iOffset < $iOffsetEnd} {incr iOffset $iOffsetIncr} {
-    for {set iLimit 0} {$iLimit < $iLimitEnd} {incr iLimit} {
-  
-      set ::compound_sql "$sql LIMIT $iLimit"
-      if {$iOffset != 0} {
-        append ::compound_sql " OFFSET $iOffset"
-      }
-  
-      set iStart [expr {$iOffset*$nCol}]
-      set iEnd [expr {($iOffset*$nCol) + ($iLimit*$nCol) -1}]
-  
-      do_test $testname.limit=$iLimit.offset=$iOffset { 
-        execsql $::compound_sql
-      } [lrange $result $iStart $iEnd]
-    }
-  }
-}
-
-#-------------------------------------------------------------------------
-# test_compound_select_flippable TESTNAME SELECT RESULT
-#
-#   This command is for testing statements of the form:
-#
-#     <simple select 1> <compound op> <simple select 2> ORDER BY <order by>
-#
-#   where each <simple select> is a simple (non-compound) select statement
-#   and <compound op> is one of "INTERSECT", "UNION ALL" or "UNION".
-#
-#   This proc calls [test_compound_select] twice, once with the select
-#   statement as it is passed to this command, and once with the positions
-#   of <select statement 1> and <select statement 2> exchanged.
-#
-proc test_compound_select_flippable {testname sql result} {
-  test_compound_select $testname $sql $result
-
-  set select [string trim $sql]
-  set RE {(.*)(UNION ALL|INTERSECT|UNION)(.*)(ORDER BY.*)}
-  set rc [regexp $RE $select -> s1 op s2 order_by]
-  if {!$rc} {error "Statement is unflippable: $select"}
-
-  set flipsql "$s2 $op $s1 $order_by"
-  test_compound_select $testname.flipped $flipsql $result
-}
-
-#############################################################################
-# Begin tests.
-#
-
-# Create and populate a sample database.
-#
-do_test select9-1.0 {
-  execsql {
-    CREATE TABLE t1(a, b, c);
-    CREATE TABLE t2(d, e, f);
-    BEGIN;
-      INSERT INTO t1 VALUES(1,  'one',   'I');
-      INSERT INTO t1 VALUES(3,  NULL,    NULL);
-      INSERT INTO t1 VALUES(5,  'five',  'V');
-      INSERT INTO t1 VALUES(7,  'seven', 'VII');
-      INSERT INTO t1 VALUES(9,  NULL,    NULL);
-      INSERT INTO t1 VALUES(2,  'two',   'II');
-      INSERT INTO t1 VALUES(4,  'four',  'IV');
-      INSERT INTO t1 VALUES(6,  NULL,    NULL);
-      INSERT INTO t1 VALUES(8,  'eight', 'VIII');
-      INSERT INTO t1 VALUES(10, 'ten',   'X');
-
-      INSERT INTO t2 VALUES(1,  'two',      'IV');
-      INSERT INTO t2 VALUES(2,  'four',     'VIII');
-      INSERT INTO t2 VALUES(3,  NULL,       NULL);
-      INSERT INTO t2 VALUES(4,  'eight',    'XVI');
-      INSERT INTO t2 VALUES(5,  'ten',      'XX');
-      INSERT INTO t2 VALUES(6,  NULL,       NULL);
-      INSERT INTO t2 VALUES(7,  'fourteen', 'XXVIII');
-      INSERT INTO t2 VALUES(8,  'sixteen',  'XXXII');
-      INSERT INTO t2 VALUES(9,  NULL,       NULL);
-      INSERT INTO t2 VALUES(10, 'twenty',   'XL');
-
-    COMMIT;
-  }
-} {}
-
-# Each iteration of this loop runs the same tests with a different set
-# of indexes present within the database schema. The data returned by
-# the compound SELECT statements in the test cases should be the same 
-# in each case.
-#
-set iOuterLoop 1
-foreach indexes [list {
-  /* Do not create any indexes. */
-} {
-  CREATE INDEX i1 ON t1(a)
-} {
-  CREATE INDEX i2 ON t1(b)
-} {
-  CREATE INDEX i3 ON t2(d)
-} {
-  CREATE INDEX i4 ON t2(e)
-}] {
-
-  do_test select9-1.$iOuterLoop.1 {
-    execsql $indexes
-  } {}
-
-  # Test some 2-way UNION ALL queries. No WHERE clauses.
-  #
-  test_compound_select select9-1.$iOuterLoop.2 {
-    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 
-  } {1 one 3 {} 5 five 7 seven 9 {} 2 two 4 four 6 {} 8 eight 10 ten 1 two 2 four 3 {} 4 eight 5 ten 6 {} 7 fourteen 8 sixteen 9 {} 10 twenty}
-  test_compound_select select9-1.$iOuterLoop.3 {
-    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 1 
-  } {1 one 1 two 2 two 2 four 3 {} 3 {} 4 four 4 eight 5 five 5 ten 6 {} 6 {} 7 seven 7 fourteen 8 eight 8 sixteen 9 {} 9 {} 10 ten 10 twenty}
-  test_compound_select select9-1.$iOuterLoop.4 {
-    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 2 
-  } {3 {} 9 {} 6 {} 3 {} 6 {} 9 {} 8 eight 4 eight 5 five 4 four 2 four 7 fourteen 1 one 7 seven 8 sixteen 10 ten 5 ten 10 twenty 2 two 1 two}
-  test_compound_select_flippable select9-1.$iOuterLoop.5 {
-    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 1, 2
-  } {1 one 1 two 2 four 2 two 3 {} 3 {} 4 eight 4 four 5 five 5 ten 6 {} 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 9 {} 10 ten 10 twenty}
-  test_compound_select_flippable select9-1.$iOuterLoop.6 {
-    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 2, 1
-  } {3 {} 3 {} 6 {} 6 {} 9 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
-
-  # Test some 2-way UNION queries.
-  #
-  test_compound_select select9-1.$iOuterLoop.7 {
-    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 
-  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
-
-  test_compound_select select9-1.$iOuterLoop.8 {
-    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 1 
-  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
-
-  test_compound_select select9-1.$iOuterLoop.9 {
-    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 2 
-  } {3 {} 6 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
-
-  test_compound_select_flippable select9-1.$iOuterLoop.10 {
-    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 1, 2
-  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
-
-  test_compound_select_flippable select9-1.$iOuterLoop.11 {
-    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 2, 1
-  } {3 {} 6 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
-
-  # Test some 2-way INTERSECT queries.
-  #
-  test_compound_select select9-1.$iOuterLoop.11 {
-    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 
-  } {3 {} 6 {} 9 {}}
-  test_compound_select_flippable select9-1.$iOuterLoop.12 {
-    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 1
-  } {3 {} 6 {} 9 {}}
-  test_compound_select select9-1.$iOuterLoop.13 {
-    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 2
-  } {3 {} 6 {} 9 {}}
-  test_compound_select_flippable select9-1.$iOuterLoop.14 {
-    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 2, 1
-  } {3 {} 6 {} 9 {}}
-  test_compound_select_flippable select9-1.$iOuterLoop.15 {
-    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 1, 2
-  } {3 {} 6 {} 9 {}}
-
-  # Test some 2-way EXCEPT queries.
-  #
-  test_compound_select select9-1.$iOuterLoop.16 {
-    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 
-  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
-
-  test_compound_select select9-1.$iOuterLoop.17 {
-    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 1 
-  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
-
-  test_compound_select select9-1.$iOuterLoop.18 {
-    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 2 
-  } {8 eight 5 five 4 four 1 one 7 seven 10 ten 2 two}
-
-  test_compound_select select9-1.$iOuterLoop.19 {
-    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 1, 2
-  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
-
-  test_compound_select select9-1.$iOuterLoop.20 {
-    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 2, 1
-  } {8 eight 5 five 4 four 1 one 7 seven 10 ten 2 two}
-
-  incr iOuterLoop
-}
-
-do_test select9-2.0 {
-  execsql {
-    DROP INDEX i1;
-    DROP INDEX i2;
-    DROP INDEX i3;
-    DROP INDEX i4;
-  }
-} {}
-
-proc reverse {lhs rhs} {
-  return [string compare $rhs $lhs]
-}
-db collate reverse reverse
-
-# This loop is similar to the previous one (test cases select9-1.*) 
-# except that the simple select statements have WHERE clauses attached
-# to them. Sometimes the WHERE clause may be satisfied using the same
-# index used for ORDER BY, sometimes not.
-#
-set iOuterLoop 1
-foreach indexes [list {
-  /* Do not create any indexes. */
-} {
-  CREATE INDEX i1 ON t1(a)
-} {
-  DROP INDEX i1;
-  CREATE INDEX i1 ON t1(b, a)
-} {
-  CREATE INDEX i2 ON t2(d DESC, e COLLATE REVERSE ASC);
-} {
-  CREATE INDEX i3 ON t1(a DESC);
-}] {
-  do_test select9-2.$iOuterLoop.1 {
-    execsql $indexes
-  } {}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.2 {
-    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 ORDER BY 1
-  } {1 one I 2 two II 3 {} {} 4 four IV 5 ten XX 6 {} {} 7 fourteen XXVIII 8 sixteen XXXII 9 {} {} 10 twenty XL}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.2 {
-    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 ORDER BY 2, 1
-  } {3 {} {} 6 {} {} 9 {} {} 4 four IV 7 fourteen XXVIII 1 one I 8 sixteen XXXII 5 ten XX 10 twenty XL 2 two II}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.3 {
-    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 
-    ORDER BY 2 COLLATE reverse, 1
-  } {3 {} {} 6 {} {} 9 {} {} 2 two II 10 twenty XL 5 ten XX 8 sixteen XXXII 1 one I 7 fourteen XXVIII 4 four IV}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.4 {
-    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 ORDER BY 1
-  } {1 one I 2 two II 3 {} {} 4 four IV 5 ten XX 6 {} {} 7 fourteen XXVIII 8 sixteen XXXII 9 {} {} 10 twenty XL}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.5 {
-    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 ORDER BY 2, 1
-  } {3 {} {} 6 {} {} 9 {} {} 4 four IV 7 fourteen XXVIII 1 one I 8 sixteen XXXII 5 ten XX 10 twenty XL 2 two II}
-
-  test_compound_select_flippable select9-2.$iOuterLoop.6 {
-    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 
-    ORDER BY 2 COLLATE reverse, 1
-  } {3 {} {} 6 {} {} 9 {} {} 2 two II 10 twenty XL 5 ten XX 8 sixteen XXXII 1 one I 7 fourteen XXVIII 4 four IV}
-
-  test_compound_select select9-2.$iOuterLoop.4 {
-    SELECT a FROM t1 WHERE a<8 EXCEPT SELECT d FROM t2 WHERE d<=3 ORDER BY 1
-  } {4 5 6 7}
-
-  test_compound_select select9-2.$iOuterLoop.4 {
-    SELECT a FROM t1 WHERE a<8 INTERSECT SELECT d FROM t2 WHERE d<=3 ORDER BY 1
-  } {1 2 3}
-
-}
-
-do_test select9-2.X {
-  execsql {
-    DROP INDEX i1;
-    DROP INDEX i2;
-    DROP INDEX i3;
-  }
-} {}
-
-# This procedure executes the SQL.  Then it checks the generated program
-# for the SQL and appends a "nosort" to the result if the program contains the
-# SortCallback opcode.  If the program does not contain the SortCallback
-# opcode it appends "sort"
-#
-proc cksort {sql} {
-  set ::sqlite_sort_count 0
-  set data [execsql $sql]
-  if {$::sqlite_sort_count} {set x sort} {set x nosort}
-  lappend data $x
-  return $data
-}
-
-# If the right indexes exist, the following query:
-#
-#     SELECT t1.a FROM t1 UNION ALL SELECT t2.d FROM t2 ORDER BY 1
-#
-# can use indexes to run without doing a in-memory sort operation.
-# This block of tests (select9-3.*) is used to check if the same 
-# is possible with:
-#
-#     CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2
-#     SELECT a FROM v1 ORDER BY 1
-#
-# It turns out that it is.
-#
-do_test select9-3.1 {
-  cksort { SELECT a FROM t1 ORDER BY 1 }
-} {1 2 3 4 5 6 7 8 9 10 sort}
-do_test select9-3.2 {
-  execsql { CREATE INDEX i1 ON t1(a) }
-  cksort { SELECT a FROM t1 ORDER BY 1 }
-} {1 2 3 4 5 6 7 8 9 10 nosort}
-do_test select9-3.3 {
-  cksort { SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
-} {1 1 2 2 3 sort}
-do_test select9-3.4 {
-  execsql { CREATE INDEX i2 ON t2(d) }
-  cksort { SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
-} {1 1 2 2 3 nosort}
-do_test select9-3.5 {
-  execsql { CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2 }
-  cksort { SELECT a FROM v1 ORDER BY 1 LIMIT 5 }
-} {1 1 2 2 3 nosort}
-do_test select9-3.X {
-  execsql {
-    DROP INDEX i1;
-    DROP INDEX i2;
-    DROP VIEW v1;
-  }
-} {}
-
-# This block of tests is the same as the preceding one, except that
-# "UNION" is tested instead of "UNION ALL".
-#
-do_test select9-4.1 {
-  cksort { SELECT a FROM t1 ORDER BY 1 }
-} {1 2 3 4 5 6 7 8 9 10 sort}
-do_test select9-4.2 {
-  execsql { CREATE INDEX i1 ON t1(a) }
-  cksort { SELECT a FROM t1 ORDER BY 1 }
-} {1 2 3 4 5 6 7 8 9 10 nosort}
-do_test select9-4.3 {
-  cksort { SELECT a FROM t1 UNION SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
-} {1 2 3 4 5 sort}
-do_test select9-4.4 {
-  execsql { CREATE INDEX i2 ON t2(d) }
-  cksort { SELECT a FROM t1 UNION SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
-} {1 2 3 4 5 nosort}
-do_test select9-4.5 {
-  execsql { CREATE VIEW v1 AS SELECT a FROM t1 UNION SELECT d FROM t2 }
-  cksort { SELECT a FROM v1 ORDER BY 1 LIMIT 5 }
-} {1 2 3 4 5 sort}
-do_test select9-4.X {
-  execsql {
-    DROP INDEX i1;
-    DROP INDEX i2;
-    DROP VIEW v1;
-  }
-} {}
-
-
-finish_test