SQLite: Hex Artifact Content

Artifact 335d3dad8d585726c447dfee8d9c4f7383c76b78:

File test/subselect.test — part of check-in [4e926efe] at 2001-09-16 00:13:26 on branch trunk — Disclaimed copyright. Preparing for release 2.0. (CVS 250) (user: drh size: 2504)
0000: 23 20 32 30 30 31 20 53 65 70 74 65 6d 62 65 72  # 2001 September
0010: 20 31 35 0a 23 0a 23 20 54 68 65 20 61 75 74 68   15.#.# The auth
0020: 6f 72 20 64 69 73 63 6c 61 69 6d 73 20 63 6f 70  or disclaims cop
0030: 79 72 69 67 68 74 20 74 6f 20 74 68 69 73 20 73  yright to this s
0040: 6f 75 72 63 65 20 63 6f 64 65 2e 20 20 49 6e 20  ource code.  In 
0050: 70 6c 61 63 65 20 6f 66 0a 23 20 61 20 6c 65 67  place of.# a leg
0060: 61 6c 20 6e 6f 74 69 63 65 2c 20 68 65 72 65 20  al notice, here 
0070: 69 73 20 61 20 62 6c 65 73 73 69 6e 67 3a 0a 23  is a blessing:.#
0080: 0a 23 20 20 20 20 4d 61 79 20 79 6f 75 20 64 6f  .#    May you do
0090: 20 67 6f 6f 64 20 61 6e 64 20 6e 6f 74 20 65 76   good and not ev
00a0: 69 6c 2e 0a 23 20 20 20 20 4d 61 79 20 79 6f 75  il..#    May you
00b0: 20 66 69 6e 64 20 66 6f 72 67 69 76 65 6e 65 73   find forgivenes
00c0: 73 20 66 6f 72 20 79 6f 75 72 73 65 6c 66 20 61  s for yourself a
00d0: 6e 64 20 66 6f 72 67 69 76 65 20 6f 74 68 65 72  nd forgive other
00e0: 73 2e 0a 23 20 20 20 20 4d 61 79 20 79 6f 75 20  s..#    May you 
00f0: 73 68 61 72 65 20 66 72 65 65 6c 79 2c 20 6e 65  share freely, ne
0100: 76 65 72 20 74 61 6b 69 6e 67 20 6d 6f 72 65 20  ver taking more 
0110: 74 68 61 6e 20 79 6f 75 20 67 69 76 65 2e 0a 23  than you give..#
0120: 0a 23 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a  .#**************
0130: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a  ****************
0140: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a  ****************
0150: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a  ****************
0160: 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 23 20 54 68 69 73  *********.# This
0170: 20 66 69 6c 65 20 69 6d 70 6c 65 6d 65 6e 74 73   file implements
0180: 20 72 65 67 72 65 73 73 69 6f 6e 20 74 65 73 74   regression test
0190: 73 20 66 6f 72 20 53 51 4c 69 74 65 20 6c 69 62  s for SQLite lib
01a0: 72 61 72 79 2e 20 20 54 68 65 0a 23 20 66 6f 63  rary.  The.# foc
01b0: 75 73 20 6f 66 20 74 68 69 73 20 66 69 6c 65 20  us of this file 
01c0: 69 73 20 74 65 73 74 69 6e 67 20 53 45 4c 45 43  is testing SELEC
01d0: 54 20 73 74 61 74 65 6d 65 6e 74 73 20 74 68 61  T statements tha
01e0: 74 20 61 72 65 20 70 61 72 74 20 6f 66 0a 23 20  t are part of.# 
01f0: 65 78 70 72 65 73 73 69 6f 6e 73 2e 0a 23 0a 23  expressions..#.#
0200: 20 24 49 64 3a 20 73 75 62 73 65 6c 65 63 74 2e   $Id: subselect.
0210: 74 65 73 74 2c 76 20 31 2e 34 20 32 30 30 31 2f  test,v 1.4 2001/
0220: 30 39 2f 31 36 20 30 30 3a 31 33 3a 32 38 20 64  09/16 00:13:28 d
0230: 72 68 20 45 78 70 20 24 0a 0a 73 65 74 20 74 65  rh Exp $..set te
0240: 73 74 64 69 72 20 5b 66 69 6c 65 20 64 69 72 6e  stdir [file dirn
0250: 61 6d 65 20 24 61 72 67 76 30 5d 0a 73 6f 75 72  ame $argv0].sour
0260: 63 65 20 24 74 65 73 74 64 69 72 2f 74 65 73 74  ce $testdir/test
0270: 65 72 2e 74 63 6c 0a 0a 23 20 42 61 73 69 63 20  er.tcl..# Basic 
0280: 73 61 6e 69 74 79 20 63 68 65 63 6b 69 6e 67 2e  sanity checking.
0290: 20 20 54 72 79 20 61 20 73 69 6d 70 6c 65 20 73    Try a simple s
02a0: 75 62 73 65 6c 65 63 74 2e 0a 23 0a 64 6f 5f 74  ubselect..#.do_t
02b0: 65 73 74 20 73 75 62 73 65 6c 65 63 74 2d 31 2e  est subselect-1.
02c0: 31 20 7b 0a 20 20 65 78 65 63 73 71 6c 20 7b 0a  1 {.  execsql {.
02d0: 20 20 20 20 43 52 45 41 54 45 20 54 41 42 4c 45      CREATE TABLE
02e0: 20 74 31 28 61 20 69 6e 74 2c 20 62 20 69 6e 74   t1(a int, b int
02f0: 29 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e  );.    INSERT IN
0300: 54 4f 20 74 31 20 56 41 4c 55 45 53 28 31 2c 32  TO t1 VALUES(1,2
0310: 29 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e  );.    INSERT IN
0320: 54 4f 20 74 31 20 56 41 4c 55 45 53 28 33 2c 34  TO t1 VALUES(3,4
0330: 29 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e  );.    INSERT IN
0340: 54 4f 20 74 31 20 56 41 4c 55 45 53 28 35 2c 36  TO t1 VALUES(5,6
0350: 29 3b 0a 20 20 7d 0a 20 20 65 78 65 63 73 71 6c  );.  }.  execsql
0360: 20 7b 53 45 4c 45 43 54 20 2a 20 46 52 4f 4d 20   {SELECT * FROM 
0370: 74 31 20 57 48 45 52 45 20 61 20 3d 20 28 53 45  t1 WHERE a = (SE
0380: 4c 45 43 54 20 63 6f 75 6e 74 28 2a 29 20 46 52  LECT count(*) FR
0390: 4f 4d 20 74 31 29 7d 0a 7d 20 7b 33 20 34 7d 0a  OM t1)}.} {3 4}.
03a0: 0a 23 20 54 72 79 20 61 20 73 65 6c 65 63 74 20  .# Try a select 
03b0: 77 69 74 68 20 6d 6f 72 65 20 74 68 61 6e 20 6f  with more than o
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03d0: 2e 0a 23 0a 64 6f 5f 74 65 73 74 20 73 75 62 73  ..#.do_test subs
03e0: 65 6c 65 63 74 2d 31 2e 32 20 7b 0a 20 20 73 65  elect-1.2 {.  se
03f0: 74 20 76 20 5b 63 61 74 63 68 20 7b 65 78 65 63  t v [catch {exec
0400: 73 71 6c 20 7b 53 45 4c 45 43 54 20 2a 20 46 52  sql {SELECT * FR
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0450: 7b 6f 6e 6c 79 20 61 20 73 69 6e 67 6c 65 20 72  {only a single r
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04a0: 73 75 62 73 65 6c 65 63 74 20 77 69 74 68 6f 75  subselect withou
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04c0: 23 0a 64 6f 5f 74 65 73 74 20 73 75 62 73 65 6c  #.do_test subsel
04d0: 65 63 74 2d 31 2e 33 61 20 7b 0a 20 20 65 78 65  ect-1.3a {.  exe
04e0: 63 73 71 6c 20 7b 53 45 4c 45 43 54 20 62 20 66  csql {SELECT b f
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0500: 20 28 53 45 4c 45 43 54 20 61 20 46 52 4f 4d 20   (SELECT a FROM 
0510: 74 31 20 57 48 45 52 45 20 62 3d 32 29 7d 0a 7d  t1 WHERE b=2)}.}
0520: 20 7b 32 7d 0a 64 6f 5f 74 65 73 74 20 73 75 62   {2}.do_test sub
0530: 73 65 6c 65 63 74 2d 31 2e 33 62 20 7b 0a 20 20  select-1.3b {.  
0540: 65 78 65 63 73 71 6c 20 7b 53 45 4c 45 43 54 20  execsql {SELECT 
0550: 62 20 66 72 6f 6d 20 74 31 20 77 68 65 72 65 20  b from t1 where 
0560: 61 20 3d 20 28 53 45 4c 45 43 54 20 61 20 46 52  a = (SELECT a FR
0570: 4f 4d 20 74 31 20 57 48 45 52 45 20 62 3d 34 29  OM t1 WHERE b=4)
0580: 7d 0a 7d 20 7b 34 7d 0a 64 6f 5f 74 65 73 74 20  }.} {4}.do_test 
0590: 73 75 62 73 65 6c 65 63 74 2d 31 2e 33 63 20 7b  subselect-1.3c {
05a0: 0a 20 20 65 78 65 63 73 71 6c 20 7b 53 45 4c 45  .  execsql {SELE
05b0: 43 54 20 62 20 66 72 6f 6d 20 74 31 20 77 68 65  CT b from t1 whe
05c0: 72 65 20 61 20 3d 20 28 53 45 4c 45 43 54 20 61  re a = (SELECT a
05d0: 20 46 52 4f 4d 20 74 31 20 57 48 45 52 45 20 62   FROM t1 WHERE b
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05f0: 73 74 20 73 75 62 73 65 6c 65 63 74 2d 31 2e 33  st subselect-1.3
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0650: 57 68 61 74 20 69 66 20 74 68 65 20 73 75 62 73  What if the subs
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0680: 20 57 65 20 73 68 6f 75 6c 64 20 67 65 74 0a 23   We should get.#
0690: 20 4e 55 4c 4c 20 61 73 20 74 68 65 20 72 65 73   NULL as the res
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06c0: 62 73 65 6c 65 63 74 2d 31 2e 34 20 7b 0a 20 20  bselect-1.4 {.  
06d0: 65 78 65 63 73 71 6c 20 7b 49 4e 53 45 52 54 20  execsql {INSERT 
06e0: 49 4e 54 4f 20 74 31 20 56 41 4c 55 45 53 28 4e  INTO t1 VALUES(N
06f0: 55 4c 4c 2c 38 29 7d 0a 20 20 65 78 65 63 73 71  ULL,8)}.  execsq
0700: 6c 20 7b 53 45 4c 45 43 54 20 62 20 66 72 6f 6d  l {SELECT b from
0710: 20 74 31 20 77 68 65 72 65 20 61 20 3d 20 28 53   t1 where a = (S
0720: 45 4c 45 43 54 20 61 20 46 52 4f 4d 20 74 31 20  ELECT a FROM t1 
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0780: 73 74 20 73 75 62 73 65 6c 65 63 74 2d 31 2e 35  st subselect-1.5
0790: 20 7b 0a 20 20 65 78 65 63 73 71 6c 20 7b 0a 20   {.  execsql {. 
07a0: 20 20 20 43 52 45 41 54 45 20 54 41 42 4c 45 20     CREATE TABLE 
07b0: 74 32 28 78 20 69 6e 74 2c 20 79 20 69 6e 74 29  t2(x int, y int)
07c0: 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e 54  ;.    INSERT INT
07d0: 4f 20 74 32 20 56 41 4c 55 45 53 28 31 2c 32 29  O t2 VALUES(1,2)
07e0: 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e 54  ;.    INSERT INT
07f0: 4f 20 74 32 20 56 41 4c 55 45 53 28 32 2c 34 29  O t2 VALUES(2,4)
0800: 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e 54  ;.    INSERT INT
0810: 4f 20 74 32 20 56 41 4c 55 45 53 28 33 2c 38 29  O t2 VALUES(3,8)
0820: 3b 0a 20 20 20 20 49 4e 53 45 52 54 20 49 4e 54  ;.    INSERT INT
0830: 4f 20 74 32 20 56 41 4c 55 45 53 28 34 2c 31 36  O t2 VALUES(4,16
0840: 29 3b 0a 20 20 7d 0a 20 20 65 78 65 63 73 71 6c  );.  }.  execsql
0850: 20 7b 0a 20 20 20 20 53 45 4c 45 43 54 20 79 20   {.    SELECT y 
0860: 66 72 6f 6d 20 74 32 20 0a 20 20 20 20 57 48 45  from t2 .    WHE
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08a0: 20 28 53 45 4c 45 43 54 20 73 75 6d 28 61 29 20   (SELECT sum(a) 
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08c0: 38 7d 0a 0a 23 20 54 72 79 20 73 6f 6d 65 74 68  8}..# Try someth
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0930: 64 6f 5f 74 65 73 74 20 73 75 62 73 65 6c 65 63  do_test subselec
0940: 74 2d 31 2e 36 20 7b 0a 20 20 65 78 65 63 73 71  t-1.6 {.  execsq
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0970: 28 53 45 4c 45 43 54 20 6d 61 78 28 78 29 20 46  (SELECT max(x) F
0980: 52 4f 4d 20 74 32 29 7d 0a 20 20 65 78 65 63 73  ROM t2)}.  execs
0990: 71 6c 20 7b 53 45 4c 45 43 54 20 78 20 46 52 4f  ql {SELECT x FRO
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09b0: 0a 7d 20 7b 32 20 33 20 34 7d 0a 0a 66 69 6e 69  .} {2 3 4}..fini
09c0: 73 68 5f 74 65 73 74 0a                          sh_test.