[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/minmax2.test

-# 2007 July 17
-#
-# 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 file is testing SELECT statements that contain
-# aggregate min() and max() functions and which are handled as
-# as a special case.  This file makes sure that the min/max
-# optimization works right in the presence of descending
-# indices.  Ticket #2514.
-#
-# $Id: minmax2.test,v 1.2 2008/01/05 17:39:30 danielk1977 Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-do_test minmax2-1.0 {
-  execsql {
-    PRAGMA legacy_file_format=0;
-    BEGIN;
-    CREATE TABLE t1(x, y);
-    INSERT INTO t1 VALUES(1,1);
-    INSERT INTO t1 VALUES(2,2);
-    INSERT INTO t1 VALUES(3,2);
-    INSERT INTO t1 VALUES(4,3);
-    INSERT INTO t1 VALUES(5,3);
-    INSERT INTO t1 VALUES(6,3);
-    INSERT INTO t1 VALUES(7,3);
-    INSERT INTO t1 VALUES(8,4);
-    INSERT INTO t1 VALUES(9,4);
-    INSERT INTO t1 VALUES(10,4);
-    INSERT INTO t1 VALUES(11,4);
-    INSERT INTO t1 VALUES(12,4);
-    INSERT INTO t1 VALUES(13,4);
-    INSERT INTO t1 VALUES(14,4);
-    INSERT INTO t1 VALUES(15,4);
-    INSERT INTO t1 VALUES(16,5);
-    INSERT INTO t1 VALUES(17,5);
-    INSERT INTO t1 VALUES(18,5);
-    INSERT INTO t1 VALUES(19,5);
-    INSERT INTO t1 VALUES(20,5);
-    COMMIT;
-    SELECT DISTINCT y FROM t1 ORDER BY y;
-  }
-} {1 2 3 4 5}
-
-do_test minmax2-1.1 {
-  set sqlite_search_count 0
-  execsql {SELECT min(x) FROM t1}
-} {1}
-do_test minmax2-1.2 {
-  set sqlite_search_count
-} {19}
-do_test minmax2-1.3 {
-  set sqlite_search_count 0
-  execsql {SELECT max(x) FROM t1}
-} {20}
-do_test minmax2-1.4 {
-  set sqlite_search_count
-} {19}
-do_test minmax2-1.5 {
-  execsql {CREATE INDEX t1i1 ON t1(x DESC)}
-  set sqlite_search_count 0
-  execsql {SELECT min(x) FROM t1}
-} {1}
-do_test minmax2-1.6 {
-  set sqlite_search_count
-} {1}
-do_test minmax2-1.7 {
-  set sqlite_search_count 0
-  execsql {SELECT max(x) FROM t1}
-} {20}
-do_test minmax2-1.8 {
-  set sqlite_search_count
-} {0}
-do_test minmax2-1.9 {
-  set sqlite_search_count 0
-  execsql {SELECT max(y) FROM t1}
-} {5}
-do_test minmax2-1.10 {
-  set sqlite_search_count
-} {19}
-
-do_test minmax2-2.0 {
-  execsql {
-    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
-    INSERT INTO t2 SELECT * FROM t1;
-  }
-  set sqlite_search_count 0
-  execsql {SELECT min(a) FROM t2}
-} {1}
-do_test minmax2-2.1 {
-  set sqlite_search_count
-} {0}
-do_test minmax2-2.2 {
-  set sqlite_search_count 0
-  execsql {SELECT max(a) FROM t2}
-} {20}
-do_test minmax2-2.3 {
-  set sqlite_search_count
-} {0}
-
-do_test minmax2-3.0 {
-  ifcapable subquery {
-    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
-  } else {
-    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
-    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
-  }
-  set sqlite_search_count 0
-  execsql {SELECT max(a) FROM t2}
-} {21}
-do_test minmax2-3.1 {
-  set sqlite_search_count
-} {0}
-do_test minmax2-3.2 {
-  ifcapable subquery {
-    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
-  } else {
-    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
-    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
-  }
-  set sqlite_search_count 0
-  ifcapable subquery {
-    execsql { SELECT b FROM t2 WHERE a=(SELECT max(a) FROM t2) }
-  } else {
-    execsql { SELECT b FROM t2 WHERE a=max_a_t2() }
-  }
-} {999}
-do_test minmax2-3.3 {
-  set sqlite_search_count
-} {0}
-
-ifcapable {compound && subquery} {
-  do_test minmax2-4.1 {
-    execsql {
-      SELECT coalesce(min(x+0),-1), coalesce(max(x+0),-1) FROM
-        (SELECT * FROM t1 UNION SELECT NULL as 'x', NULL as 'y')
-    }
-  } {1 20}
-  do_test minmax2-4.2 {
-    execsql {
-      SELECT y, coalesce(sum(x),0) FROM
-        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
-      GROUP BY y ORDER BY y;
-    }
-  } {1 1 2 5 3 22 4 92 5 90 6 0}
-  do_test minmax2-4.3 {
-    execsql {
-      SELECT y, count(x), count(*) FROM
-        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
-      GROUP BY y ORDER BY y;
-    }
-  } {1 1 1 2 2 3 3 4 5 4 8 9 5 5 6 6 0 1}
-} ;# ifcapable compound
-
-# Make sure the min(x) and max(x) optimizations work on empty tables
-# including empty tables with indices. Ticket #296.
-#
-do_test minmax2-5.1 {
-  execsql {
-    CREATE TABLE t3(x INTEGER UNIQUE NOT NULL);
-    SELECT coalesce(min(x),999) FROM t3;
-  }
-} {999}
-do_test minmax2-5.2 {
-  execsql {
-    SELECT coalesce(min(rowid),999) FROM t3;
-  }
-} {999}
-do_test minmax2-5.3 {
-  execsql {
-    SELECT coalesce(max(x),999) FROM t3;
-  }
-} {999}
-do_test minmax2-5.4 {
-  execsql {
-    SELECT coalesce(max(rowid),999) FROM t3;
-  }
-} {999}
-do_test minmax2-5.5 {
-  execsql {
-    SELECT coalesce(max(rowid),999) FROM t3 WHERE rowid<25;
-  }
-} {999}
-
-# Make sure the min(x) and max(x) optimizations work when there
-# is a LIMIT clause.  Ticket #396.
-#
-do_test minmax2-6.1 {
-  execsql {
-    SELECT min(a) FROM t2 LIMIT 1
-  }
-} {1}
-do_test minmax2-6.2 {
-  execsql {
-    SELECT max(a) FROM t2 LIMIT 3
-  }
-} {22}
-do_test minmax2-6.3 {
-  execsql {
-    SELECT min(a) FROM t2 LIMIT 0,100
-  }
-} {1}
-do_test minmax2-6.4 {
-  execsql {
-    SELECT max(a) FROM t2 LIMIT 1,100
-  }
-} {}
-do_test minmax2-6.5 {
-  execsql {
-    SELECT min(x) FROM t3 LIMIT 1
-  }
-} {{}}
-do_test minmax2-6.6 {
-  execsql {
-    SELECT max(x) FROM t3 LIMIT 0
-  }
-} {}
-do_test minmax2-6.7 {
-  execsql {
-    SELECT max(a) FROM t2 LIMIT 0
-  }
-} {}
-
-# Make sure the max(x) and min(x) optimizations work for nested
-# queries.  Ticket #587.
-#
-do_test minmax2-7.1 {
-  execsql {
-    SELECT max(x) FROM t1;
-  }
-} 20
-ifcapable subquery {
-  do_test minmax2-7.2 {
-    execsql {
-      SELECT * FROM (SELECT max(x) FROM t1);
-    }
-  } 20
-}
-do_test minmax2-7.3 {
-  execsql {
-    SELECT min(x) FROM t1;
-  }
-} 1
-ifcapable subquery {
-  do_test minmax2-7.4 {
-    execsql {
-      SELECT * FROM (SELECT min(x) FROM t1);
-    }
-  } 1
-}
-
-# Make sure min(x) and max(x) work correctly when the datatype is
-# TEXT instead of NUMERIC.  Ticket #623.
-#
-do_test minmax2-8.1 {
-  execsql {
-    CREATE TABLE t4(a TEXT);
-    INSERT INTO t4 VALUES('1234');
-    INSERT INTO t4 VALUES('234');
-    INSERT INTO t4 VALUES('34');
-    SELECT min(a), max(a) FROM t4;
-  }
-} {1234 34}
-do_test minmax2-8.2 {
-  execsql {
-    CREATE TABLE t5(a INTEGER);
-    INSERT INTO t5 VALUES('1234');
-    INSERT INTO t5 VALUES('234');
-    INSERT INTO t5 VALUES('34');
-    SELECT min(a), max(a) FROM t5;
-  }
-} {34 1234}
-
-# Ticket #658:  Test the min()/max() optimization when the FROM clause
-# is a subquery.
-#
-ifcapable {compound && subquery} {
-  do_test minmax2-9.1 {
-    execsql {
-      SELECT max(rowid) FROM (
-        SELECT max(rowid) FROM t4 UNION SELECT max(rowid) FROM t5
-      )
-    }
-  } {{}}
-  do_test minmax2-9.2 {
-    execsql {
-      SELECT max(rowid) FROM (
-        SELECT max(rowid) FROM t4 EXCEPT SELECT max(rowid) FROM t5
-      )
-    }
-  } {{}}
-} ;# ifcapable compound&&subquery
-
-# If there is a NULL in an aggregate max() or min(), ignore it.  An
-# aggregate min() or max() will only return NULL if all values are NULL.
-#
-do_test minmax2-10.1 {
-  execsql {
-    CREATE TABLE t6(x);
-    INSERT INTO t6 VALUES(1);
-    INSERT INTO t6 VALUES(2);
-    INSERT INTO t6 VALUES(NULL);
-    SELECT coalesce(min(x),-1) FROM t6;
-  }
-} {1}
-do_test minmax2-10.2 {
-  execsql {
-    SELECT max(x) FROM t6;
-  }
-} {2}
-do_test minmax2-10.3 {
-  execsql {
-    CREATE INDEX i6 ON t6(x DESC);
-    SELECT coalesce(min(x),-1) FROM t6;
-  }
-} {1}
-do_test minmax2-10.4 {
-  execsql {
-    SELECT max(x) FROM t6;
-  }
-} {2}
-do_test minmax2-10.5 {
-  execsql {
-    DELETE FROM t6 WHERE x NOT NULL;
-    SELECT count(*) FROM t6;
-  }
-} 1
-do_test minmax2-10.6 {
-  execsql {
-    SELECT count(x) FROM t6;
-  }
-} 0
-ifcapable subquery {
-  do_test minmax2-10.7 {
-    execsql {
-      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
-    }
-  } {{} {}}
-}
-do_test minmax2-10.8 {
-  execsql {
-    SELECT min(x), max(x) FROM t6;
-  }
-} {{} {}}
-do_test minmax2-10.9 {
-  execsql {
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    INSERT INTO t6 SELECT * FROM t6;
-    SELECT count(*) FROM t6;
-  }
-} 1024
-do_test minmax2-10.10 {
-  execsql {
-    SELECT count(x) FROM t6;
-  }
-} 0
-ifcapable subquery {
-  do_test minmax2-10.11 {
-    execsql {
-      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
-    }
-  } {{} {}}
-}
-do_test minmax2-10.12 {
-  execsql {
-    SELECT min(x), max(x) FROM t6;
-  }
-} {{} {}}
-
-
-finish_test