System.Data.SQLite
Check-in [f74cf69523]
Not logged in

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

Overview
Comment:Fix stress test option parsing and database cleanup.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | stress
Files: files | file ages | folders
SHA1: f74cf695234beb53252c7abda281d789493daa21
User & Date: mistachkin 2012-07-11 03:35:11
Context
2012-07-11
03:39
Merge updates from trunk. check-in: 44368af72f user: mistachkin tags: stress
03:35
Fix stress test option parsing and database cleanup. check-in: f74cf69523 user: mistachkin tags: stress
03:24
Fixes to stress test. Also, make the number of iterations configurable via the command line. check-in: 8e2fc24892 user: mistachkin tags: stress
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to Tests/stress.eagle.

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
..
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
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333

runTest {test stress-1.1 {multithreaded stress testing} -setup {
  set count(0) 1
  set count(1) 10

  if {[info exists argv] && [llength $argv] > 0} then {
    parse options [list \
        {null MustHaveIntegerValue -1 -1 -count0 $count(0)} \
        {null MustHaveIntegerValue -1 -1 -count1 $count(1)}] $argv

    set count(0) $options(-count0,value)
    set count(1) $options(-count1,value)
  }

  #############################################################################

  tputs $test_channel [appendArgs \
      "---- repeating all workloads " $count(0) " time(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will have " $count(1) " iteration(s)...\n"]

  #############################################################################

  setupDb [set fileName(1) :memory:] "" "" "" "" "" false srcDb
................................................................................

  #############################################################################

  set workload(1) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #1, CREATE TABLE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false

      for {set index 2} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "CREATE TABLE IF NOT EXISTS t" $index "(x PRIMARY KEY, y, z);"]
        puts -nonewline stdout 1; after [expr {int(rand() * 1000)}]
      }









      cleanupDb $fileName db false false















    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }





































































































































  }]

  #############################################################################

  set workload(2) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #2, DROP TABLE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false

      for {set index 2} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "DROP TABLE IF EXISTS t" $index \;]

        puts -nonewline stdout 2; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }

  }]

  #############################################################################

  set workload(3) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #3, "small" SELECT statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false

      for {set index 1} {$index <= $count} {incr index} {
        sql execute -execute reader $db [appendArgs \
            "SELECT x, y FROM " $table " WHERE z = 'small';"]
        puts -nonewline stdout 3; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }

  }]

  #############################################################################

  set workload(4) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #4, "big" SELECT statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false

      for {set index 1} {$index <= $count} {incr index} {
        sql execute -execute reader $db [appendArgs \
            "SELECT x, y FROM " $table " WHERE z = 'big';"]
        puts -nonewline stdout 4; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }

  }]

  #############################################################################

  set workload(5) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #5, "small" INSERT statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "INSERT INTO " $table "(x, y, z) VALUES('" \
            [format %lX [expr {random()}]] ',' \
            [base64 encode [expr {randstr(10000)}]] \
            "','small');"]
        puts -nonewline stdout 5; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(6) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #6, "big" INSERT statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "INSERT INTO " $table "(x, y, z) VALUES('" \
            [format %lX [expr {random()}]] ',' \
            [base64 encode [expr {randstr(10000000)}]] \
            "','big');"]
        puts -nonewline stdout 6; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(7) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #7, "small" UPDATE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "UPDATE " $table \
            " SET y = '" [base64 encode [expr {randstr(10000)}]] \
            "' WHERE x LIKE '" [format %X $index] "%' AND z = 'small';"]
        puts -nonewline stdout 7; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(8) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #8, "big" UPDATE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "UPDATE " $table \
            " SET y = '" [base64 encode [expr {randstr(10000000)}]] \
            "' WHERE x LIKE '" [format %X $index] "%' AND z = 'big';"]
        puts -nonewline stdout 8; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(9) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #9, "small" DELETE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "DELETE FROM " $table \
            " WHERE x LIKE '" [format %X $index] "%' AND z = 'small';"]
        puts -nonewline stdout 9; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(10) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #10, "big" DELETE statements.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "DELETE FROM " $table \
            " WHERE x LIKE '" [format %X $index] "%' AND z = 'big';"]
        puts -nonewline stdout A; after [expr {int(rand() * 1000)}]
      }
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(11) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #11, VACUUM statement.
    #
    if {[catch {
      setupDb $fileName "" "" "" "" "" false
      sql execute $db "VACUUM;"
      puts -nonewline stdout B; after [expr {int(rand() * 1000)}]
      cleanupDb $fileName db false false
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
  }]

  #############################################################################

  set workload(12) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #12, backup to in-memory database.







|
|








|







 







<
|
>





>
>
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>









>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>




|

|

<
|
>
|
|
|
>
|

<









>




|

|

<
|
>

|
|
|

<









>




|

|

<
|
>

|
|
|

<









>




|

|

<
|
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<

<
<
|
<
<
<
<
|
<
<









<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
|
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<







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
..
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
276
277
278
279
280
281
282
283
284
285
286
287

288
289
290
291
292
293
294

295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312

313


























314


315




316


317
318
319
320
321
322
323
324
325
















326











































































































327
328
329
330
331
332
333

runTest {test stress-1.1 {multithreaded stress testing} -setup {
  set count(0) 1
  set count(1) 10

  if {[info exists argv] && [llength $argv] > 0} then {
    parse options [list \
        [list null MustHaveIntegerValue -1 -1 -count0 $count(0)] \
        [list null MustHaveIntegerValue -1 -1 -count1 $count(1)]] $argv

    set count(0) $options(-count0,value)
    set count(1) $options(-count1,value)
  }

  #############################################################################

  tputs $test_channel [appendArgs \
      "---- workloads will repeat " $count(0) " time(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will have " $count(1) " iteration(s)...\n"]

  #############################################################################

  setupDb [set fileName(1) :memory:] "" "" "" "" "" false srcDb
................................................................................

  #############################################################################

  set workload(1) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #1, CREATE TABLE statements.
    #

    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 2} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "CREATE TABLE IF NOT EXISTS t" $index "(x PRIMARY KEY, y, z);"]
        puts -nonewline stdout 1; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(2) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #2, DROP TABLE statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 2} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "DROP TABLE IF EXISTS t" $index \;]
        puts -nonewline stdout 2; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(3) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #3, "small" SELECT statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute -execute reader $db [appendArgs \
            "SELECT x, y FROM " $table " WHERE z = 'small';"]
        puts -nonewline stdout 3; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(4) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #4, "big" SELECT statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute -execute reader $db [appendArgs \
            "SELECT x, y FROM " $table " WHERE z = 'big';"]
        puts -nonewline stdout 4; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(5) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #5, "small" INSERT statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "INSERT INTO " $table "(x, y, z) VALUES('" \
            [format %lX [expr {random()}]] ',' \
            [base64 encode [expr {randstr(10000)}]] \
            "','small');"]
        puts -nonewline stdout 5; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(6) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #6, "big" INSERT statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs \
            "INSERT INTO " $table "(x, y, z) VALUES('" \
            [format %lX [expr {random()}]] ',' \
            [base64 encode [expr {randstr(10000000)}]] \
            "','big');"]
        puts -nonewline stdout 6; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(7) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #7, "small" UPDATE statements.
    #
    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "UPDATE " $table \
            " SET y = '" [base64 encode [expr {randstr(10000)}]] \
            "' WHERE x LIKE '" [format %X $index] "%' AND z = 'small';"]
        puts -nonewline stdout 7; after [expr {int(rand() * 1000)}]
      }
    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(8) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #8, "big" UPDATE statements.
    #

    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "UPDATE " $table \
            " SET y = '" [base64 encode [expr {randstr(10000000)}]] \
            "' WHERE x LIKE '" [format %X $index] "%' AND z = 'big';"]
        puts -nonewline stdout 8; after [expr {int(rand() * 1000)}]
      }

    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(9) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #9, "small" DELETE statements.
    #

    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "DELETE FROM " $table \
            " WHERE x LIKE '" [format %X $index] "%' AND z = 'small';"]
        puts -nonewline stdout 9; after [expr {int(rand() * 1000)}]
      }

    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(10) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #10, "big" DELETE statements.
    #

    setupDb $fileName "" "" "" "" "" false
    if {[catch {
      for {set index 1} {$index <= $count} {incr index} {
        sql execute $db [appendArgs "DELETE FROM " $table \
            " WHERE x LIKE '" [format %X $index] "%' AND z = 'big';"]
        puts -nonewline stdout A; after [expr {int(rand() * 1000)}]
      }

    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
    cleanupDb $fileName db false false
  }]

  #############################################################################

  set workload(11) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #11, VACUUM statement.
    #

    setupDb $fileName "" "" "" "" "" false


























    if {[catch {


      sql execute $db "VACUUM;"




      puts -nonewline stdout B; after [expr {int(rand() * 1000)}]


    } error]} then {
      if {[regexp -- {\sno such table: t1\s} $error]} then {
        puts -nonewline stdout *
      } else {
        puts stdout ""
        puts stdout [appendArgs [info level [info level]] ": " $error]
        puts stdout ""
      }
    }
















    cleanupDb $fileName db false false











































































































  }]

  #############################################################################

  set workload(12) [list [list srcDb fileName table count] {
    #
    # NOTE: Workload #12, backup to in-memory database.