/ Check-in [d9f5e15c]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Initial test cases for the new LIMIT/OFFSET support for DELETE/UPDATE. (CVS 5789)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: d9f5e15ca00d4d54dc395926e4c9171f1d24982a
User & Date: shane 2008-10-10 06:02:00
Context
2008-10-10
13:34
Added mallocJ.test to test allocation failure handling of the new LIMIT/OFFSET support for UPDATE/DELETE. (CVS 5790) check-in: 5375b348 user: shane tags: trunk
06:02
Initial test cases for the new LIMIT/OFFSET support for DELETE/UPDATE. (CVS 5789) check-in: d9f5e15c user: shane tags: trunk
04:34
Updated LIMIT support for DELETE/UPDATE. Omit option changed to SQLITE_ENABLE_UPDATE_DELETE_LIMIT. (CVS 5788) check-in: c10e8a3c user: shane tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Added test/wherelimit.test.







































































































































































































































































































































































































































































































































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
# 2008 October 6
#
# 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 the LIMIT ... OFFSET ... clause
#  of UPDATE and DELETE statements.
#
# $Id: wherelimit.test,v 1.1 2008/10/10 06:02:00 shane Exp $

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

proc create_test_data {size} {
  # Build some test data
  #
  execsql {
    DROP TABLE IF EXISTS t1;
    CREATE TABLE t1(x int, y int);
    BEGIN;
  }
  for {set i 1} {$i<=$size} {incr i} {
    for {set j 1} {$j<=$size} {incr j} {
      execsql "INSERT INTO t1 VALUES([expr {$i}],[expr {$j}])"
    }
  }
  execsql {
    COMMIT;
  }
  return {}
}

ifcapable {update_delete_limit} {

  # check syntax error support
  do_test wherelimit-0.1 {
    catchsql {DELETE FROM t1 ORDER BY x}
  } {1 {ORDER BY without LIMIT on DELETE}}
  do_test wherelimit-0.2 {
    catchsql {DELETE FROM t1 WHERE x=1 ORDER BY x}
  } {1 {ORDER BY without LIMIT on DELETE}}
  do_test wherelimit-0.3 {
    catchsql {UPDATE t1 SET y=1 WHERE x=1 ORDER BY x}
  } {1 {ORDER BY without LIMIT on UPDATE}}

  # no AS on table sources
  do_test wherelimit-0.4 {
    catchsql {DELETE FROM t1 AS a WHERE x=1}
  } {1 {near "AS": syntax error}}
  do_test wherelimit-0.5 {
    catchsql {UPDATE t1 AS a SET y=1 WHERE x=1}
  } {1 {near "AS": syntax error}}

  # check deletes w/o where clauses but with limit/offsets
  create_test_data 5
  do_test wherelimit-1.0 {
    execsql {SELECT count(*) FROM t1}
  } {25}
  do_test wherelimit-1.1 {
    execsql {DELETE FROM t1}
    execsql {SELECT count(*) FROM t1}
  } {0}
  create_test_data 5
  do_test wherelimit-1.2 {
    execsql {DELETE FROM t1 LIMIT 5}
    execsql {SELECT count(*) FROM t1}
  } {20}
  do_test wherelimit-1.3 {
    # limit 5
    execsql {DELETE FROM t1 ORDER BY x LIMIT 5}
    execsql {SELECT count(*) FROM t1}
  } {15}
  do_test wherelimit-1.4 {
    # limit 5, offset 2
    execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET 2}
    execsql {SELECT count(*) FROM t1}
  } {10}
  do_test wherelimit-1.5 {
    # limit 5, offset -2
    execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET -2}
    execsql {SELECT count(*) FROM t1}
  } {5}
  do_test wherelimit-1.6 {
    # limit -5 (no limit), offset 2
    execsql {DELETE FROM t1 ORDER BY x LIMIT 2, -5}
    execsql {SELECT count(*) FROM t1}
  } {2}
  do_test wherelimit-1.7 {
    # limit 5, offset -2 (no offset)
    execsql {DELETE FROM t1 ORDER BY x LIMIT -2, 5}
    execsql {SELECT count(*) FROM t1}
  } {0}
  create_test_data 5
  do_test wherelimit-1.8 {
    # limit -5 (no limit), offset -2 (no offset)
    execsql {DELETE FROM t1 ORDER BY x LIMIT -2, -5}
    execsql {SELECT count(*) FROM t1}
  } {0}
  create_test_data 3
  do_test wherelimit-1.9 {
    # limit 5, offset 2
    execsql {DELETE FROM t1 ORDER BY x LIMIT 2, 5}
    execsql {SELECT count(*) FROM t1}
  } {4}
  do_test wherelimit-1.10 {
    # limit 5, offset 5
    execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET 5}
    execsql {SELECT count(*) FROM t1}
  } {4}
  do_test wherelimit-1.11 {
    # limit 50, offset 30
    execsql {DELETE FROM t1 ORDER BY x LIMIT 50 OFFSET 30}
    execsql {SELECT count(*) FROM t1}
  } {4}
  do_test wherelimit-1.12 {
    # limit 50, offset 30
    execsql {DELETE FROM t1 ORDER BY x LIMIT 30, 50}
    execsql {SELECT count(*) FROM t1}
  } {4}
  do_test wherelimit-1.13 {
    execsql {DELETE FROM t1 ORDER BY x LIMIT 50 OFFSET 50}
    execsql {SELECT count(*) FROM t1}
  } {4}


  create_test_data 6
  do_test wherelimit-2.0 {
    execsql {SELECT count(*) FROM t1}
  } {36}
  do_test wherelimit-2.1 {
    execsql {DELETE FROM t1 WHERE x=1}
    execsql {SELECT count(*) FROM t1}
  } {30}
  create_test_data 6
  do_test wherelimit-2.2 {
    execsql {DELETE FROM t1 WHERE x=1 LIMIT 5}
    execsql {SELECT count(*) FROM t1}
  } {31}
  do_test wherelimit-2.3 {
    # limit 5
    execsql {DELETE FROM t1 WHERE x=1 ORDER BY x LIMIT 5}
    execsql {SELECT count(*) FROM t1}
  } {30}
  do_test wherelimit-2.4 {
    # limit 5, offset 2
    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 5 OFFSET 2}
    execsql {SELECT count(*) FROM t1}
  } {26}
  do_test wherelimit-2.5 {
    # limit 5, offset -2
    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 5 OFFSET -2}
    execsql {SELECT count(*) FROM t1}
  } {24}
  do_test wherelimit-2.6 {
    # limit -5 (no limit), offset 2
    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT 2, -5}
    execsql {SELECT count(*) FROM t1}
  } {20}
  do_test wherelimit-2.7 {
    # limit 5, offset -2 (no offset)
    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT -2, 5}
    execsql {SELECT count(*) FROM t1}
  } {18}
  do_test wherelimit-2.8 {
    # limit -5 (no limit), offset -2 (no offset)
    execsql {DELETE FROM t1 WHERE x=4 ORDER BY x LIMIT -2, -5}
    execsql {SELECT count(*) FROM t1}
  } {12}
  create_test_data 6
  do_test wherelimit-2.9 {
    # limit 5, offset 2
    execsql {DELETE FROM t1 WHERE x=5 ORDER BY x LIMIT 2, 5}
    execsql {SELECT count(*) FROM t1}
  } {32}
  do_test wherelimit-2.10 {
    # limit 5, offset 5
    execsql {DELETE FROM t1 WHERE x=6 ORDER BY x LIMIT 5 OFFSET 5}
    execsql {SELECT count(*) FROM t1}
  } {31}
  do_test wherelimit-2.11 {
    # limit 50, offset 30
    execsql {DELETE FROM t1 WHERE x=1 ORDER BY x LIMIT 50 OFFSET 30}
    execsql {SELECT count(*) FROM t1}
  } {31}
  do_test wherelimit-2.12 {
    # limit 50, offset 30
    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 30, 50}
    execsql {SELECT count(*) FROM t1}
  } {31}
  do_test wherelimit-2.13 {
    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT 50 OFFSET 50}
    execsql {SELECT count(*) FROM t1}
  } {31}


  create_test_data 6
  do_test wherelimit-3.0 {
    execsql {SELECT count(*) FROM t1}
  } {36}
  do_test wherelimit-3.1 {
    execsql {UPDATE t1 SET y=1 WHERE x=1}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {11}
  create_test_data 6
  do_test wherelimit-3.2 {
    execsql {UPDATE t1 SET y=1 WHERE x=1 LIMIT 5}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {10}
  do_test wherelimit-3.3 {
    # limit 5
    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5}
    execsql {SELECT count(*) FROM t1 WHERE y=2}
  } {9}
  create_test_data 6
  do_test wherelimit-3.4 {
    # limit 5, offset 2
    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5 OFFSET 2}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {6}
  do_test wherelimit-3.5 {
    # limit 5, offset -2
    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5 OFFSET -2}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {5}
  do_test wherelimit-3.6 {
    # limit -5 (no limit), offset 2
    execsql {UPDATE t1 SET y=3 WHERE x=3 ORDER BY x LIMIT 2, -5}
    execsql {SELECT count(*) FROM t1 WHERE y=3}
  } {8}
  do_test wherelimit-3.7 {
    # limit 5, offset -2 (no offset)
    execsql {UPDATE t1 SET y=3 WHERE x=3 ORDER BY x LIMIT -2, 5}
    execsql {SELECT count(*) FROM t1 WHERE y=3}
  } {10}

  do_test wherelimit-3.8 {
    # limit -5 (no limit), offset -2 (no offset)
    execsql {UPDATE t1 SET y=4 WHERE x=4 ORDER BY x LIMIT -2, -5}
    execsql {SELECT count(*) FROM t1 WHERE y=4}
  } {9}
  create_test_data 6
  do_test wherelimit-3.9 {
    # limit 5, offset 2
    execsql {UPDATE t1 SET y=4 WHERE x=5 ORDER BY x LIMIT 2, 5}
    execsql {SELECT count(*) FROM t1 WHERE y=4}
  } {9}
  do_test wherelimit-3.10 {
    # limit 5, offset 5
    execsql {UPDATE t1 SET y=4 WHERE x=6 ORDER BY x LIMIT 5 OFFSET 5}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {6}
  do_test wherelimit-3.11 {
    # limit 50, offset 30
    execsql {UPDATE t1 SET y=1 WHERE x=1 ORDER BY x LIMIT 50 OFFSET 30}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {6}
  do_test wherelimit-3.12 {
    # limit 50, offset 30
    execsql {UPDATE t1 SET y=1 WHERE x=2 ORDER BY x LIMIT 30, 50}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {6}
  do_test wherelimit-3.13 {
    execsql {UPDATE t1 SET y=1 WHERE x=3 ORDER BY x LIMIT 50 OFFSET 50}
    execsql {SELECT count(*) FROM t1 WHERE y=1}
  } {6}

}

finish_test