clang/sqlite | Gitverse

test/select7.test
218 строк6 KB
dan
Fix where.c handling of "IN (SELECT ...)" expressions when the SELECT returns more than one result column. Also error handling for other row value constructor cases.
26 июл 2016, 21:06
26 июл 2016, 21:068da209b
# 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 compute SELECT statements and nested
# views.
#
# $Id: select7.test,v 1.11 2007/09/12 17:01:45 danielk1977 Exp $


set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix select7

ifcapable compound {

# A 3-way INTERSECT.  Ticket #875
ifcapable tempdb {
  do_test select7-1.1 {
    execsql {
      create temp table t1(x);
      insert into t1 values('amx');
      insert into t1 values('anx');
      insert into t1 values('amy');
      insert into t1 values('bmy');
      select * from t1 where x like 'a__'
        intersect select * from t1 where x like '_m_'
        intersect select * from t1 where x like '__x';
    }
  } {amx}
}


# Nested views do not handle * properly.  Ticket #826.
#
ifcapable view {
do_test select7-2.1 {
  execsql {
    CREATE TABLE x(id integer primary key, a TEXT NULL);
    INSERT INTO x (a) VALUES ('first');
    CREATE TABLE tempx(id integer primary key, a TEXT NULL);
    INSERT INTO tempx (a) VALUES ('t-first');
    CREATE VIEW tv1 AS SELECT x.id, tx.id FROM x JOIN tempx tx ON tx.id=x.id;
    CREATE VIEW tv1b AS SELECT x.id, tx.id FROM x JOIN tempx tx on tx.id=x.id;
    CREATE VIEW tv2 AS SELECT * FROM tv1 UNION SELECT * FROM tv1b;
    SELECT * FROM tv2;
  }
} {1 1}
} ;# ifcapable view

} ;# ifcapable compound

# Do not allow GROUP BY without an aggregate. Ticket #1039.
#
# Change: force any query with a GROUP BY clause to be processed as
# an aggregate query, whether it contains aggregates or not.
#
ifcapable subquery {
  # do_test select7-3.1 {
  #   catchsql {
  #     SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
  #   }
  # } {1 {GROUP BY may only be used on aggregate queries}}
  do_test select7-3.1 {
    catchsql {
      SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
    }
  } [list 0 [execsql {SELECT * FROM sqlite_master ORDER BY name}]]
}

# Ticket #2018 - Make sure names are resolved correctly on all
# SELECT statements of a compound subquery.
#
ifcapable {subquery && compound} {
  do_test select7-4.1 {
    execsql {
      CREATE TABLE IF NOT EXISTS photo(pk integer primary key, x);
      CREATE TABLE IF NOT EXISTS tag(pk integer primary key, fk int, name);
    
      SELECT P.pk from PHOTO P WHERE NOT EXISTS ( 
           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk 
           EXCEPT 
           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
      );
    }
  } {}
  do_test select7-4.2 {
    execsql {
      INSERT INTO photo VALUES(1,1);
      INSERT INTO photo VALUES(2,2);
      INSERT INTO photo VALUES(3,3);
      INSERT INTO tag VALUES(11,1,'one');
      INSERT INTO tag VALUES(12,1,'two');
      INSERT INTO tag VALUES(21,1,'one-b');
      SELECT P.pk from PHOTO P WHERE NOT EXISTS ( 
           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk 
           EXCEPT 
           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
      );
    }
  } {2 3}
}

# ticket #2347
#
ifcapable {subquery && compound} {
  do_test select7-5.1 {
    catchsql {
      CREATE TABLE t2(a,b);
      SELECT 5 IN (SELECT a,b FROM t2);
    }
  } {1 {sub-select returns 2 columns - expected 1}}
  do_test select7-5.2 {
    catchsql {
      SELECT 5 IN (SELECT * FROM t2);
    }
  } {1 {sub-select returns 2 columns - expected 1}}
  do_test select7-5.3 {
    catchsql {
      SELECT 5 IN (SELECT a,b FROM t2 UNION SELECT b,a FROM t2);
    }
  } {1 {sub-select returns 2 columns - expected 1}}
  do_test select7-5.4 {
    catchsql {
      SELECT 5 IN (SELECT * FROM t2 UNION SELECT * FROM t2);
    }
  } {1 {sub-select returns 2 columns - expected 1}}
}

# Verify that an error occurs if you have too many terms on a
# compound select statement.
#
if {[clang_sanitize_address]==0} {
  ifcapable compound {
    if {$SQLITE_MAX_COMPOUND_SELECT>0} {
      set sql {SELECT 0}
      set result 0
        for {set i 1} {$i<$SQLITE_MAX_COMPOUND_SELECT} {incr i} {
          append sql " UNION ALL SELECT $i"
            lappend result $i
        }
      do_test select7-6.1 {
        catchsql $sql
      } [list 0 $result]
      append sql { UNION ALL SELECT 99999999}
      do_test select7-6.2 {
        catchsql $sql
      } {1 {too many terms in compound SELECT}}
    }
  }
}

# This block of tests verifies that bug aa92c76cd4 is fixed.
#
do_test select7-7.1 {
  execsql {
    CREATE TABLE t3(a REAL);
    INSERT INTO t3 VALUES(44.0);
    INSERT INTO t3 VALUES(56.0);
  }
} {}
do_test select7-7.2 {
  execsql {
    pragma vdbe_trace = 0;
    SELECT (CASE WHEN a=0 THEN 0 ELSE (a + 25) / 50 END) AS categ, count(*)
    FROM t3 GROUP BY categ
  }
} {1.38 1 1.62 1}
do_test select7-7.3 {
  execsql {
    CREATE TABLE t4(a REAL);
    INSERT INTO t4 VALUES( 2.0 );
    INSERT INTO t4 VALUES( 3.0 );
  }
} {}
do_test select7-7.4 {
  execsql {
    SELECT (CASE WHEN a=0 THEN 'zero' ELSE a/2 END) AS t FROM t4 GROUP BY t;
  }
} {1.0 1.5}
do_test select7-7.5 {
  execsql { SELECT a=0, typeof(a) FROM t4 }
} {0 real 0 real}
do_test select7-7.6 {
  execsql { SELECT a=0, typeof(a) FROM t4 GROUP BY a }
} {0 real 0 real}

do_test select7-7.7 {
  execsql {
    CREATE TABLE t5(a TEXT, b INT);
    INSERT INTO t5 VALUES(123, 456);
    SELECT typeof(a), a FROM t5 GROUP BY a HAVING a<b;
  }
} {text 123}

do_execsql_test 8.0 { 
  CREATE TABLE t01(x, y);
  CREATE TABLE t02(x, y);
}

do_catchsql_test 8.1 {
  SELECT * FROM (
    SELECT * FROM t01 UNION SELECT x FROM t02
  ) WHERE y=1
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}

do_catchsql_test 8.2 {
  CREATE VIEW v0 as SELECT x, y FROM t01 UNION SELECT x FROM t02;
  EXPLAIN QUERY PLAN SELECT * FROM v0 WHERE x='0' OR y;
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}


finish_test