xref: /illumos-gate/usr/src/lib/libsqlite/test/trigger2.test (revision 5d9d9091f564c198a760790b0bfa72c44e17912b)
1#
2# The author disclaims copyright to this source code.  In place of
3# a legal notice, here is a blessing:
4#
5#    May you do good and not evil.
6#    May you find forgiveness for yourself and forgive others.
7#    May you share freely, never taking more than you give.
8#
9#***********************************************************************
10#
11# Regression testing of FOR EACH ROW table triggers
12#
13# 1. Trigger execution order tests.
14# These tests ensure that BEFORE and AFTER triggers are fired at the correct
15# times relative to each other and the triggering statement.
16#
17# trigger2-1.1.*: ON UPDATE trigger execution model.
18# trigger2-1.2.*: DELETE trigger execution model.
19# trigger2-1.3.*: INSERT trigger execution model.
20#
21# 2. Trigger program execution tests.
22# These tests ensure that trigger programs execute correctly (ie. that a
23# trigger program can correctly execute INSERT, UPDATE, DELETE * SELECT
24# statements, and combinations thereof).
25#
26# 3. Selective trigger execution
27# This tests that conditional triggers (ie. UPDATE OF triggers and triggers
28# with WHEN clauses) are fired only fired when they are supposed to be.
29#
30# trigger2-3.1: UPDATE OF triggers
31# trigger2-3.2: WHEN clause
32#
33# 4. Cascaded trigger execution
34# Tests that trigger-programs may cause other triggers to fire. Also that a
35# trigger-program is never executed recursively.
36#
37# trigger2-4.1: Trivial cascading trigger
38# trigger2-4.2: Trivial recursive trigger handling
39#
40# 5. Count changes behaviour.
41# Verify that rows altered by triggers are not included in the return value
42# of the "count changes" interface.
43#
44# 6. ON CONFLICT clause handling
45# trigger2-6.1[a-f]: INSERT statements
46# trigger2-6.2[a-f]: UPDATE statements
47#
48# 7. Triggers on views fire correctly.
49#
50
51set testdir [file dirname $argv0]
52source $testdir/tester.tcl
53
54# 1.
55set ii 0
56foreach tbl_defn {
57	{CREATE TEMP TABLE tbl (a, b);}
58	{CREATE TABLE tbl (a, b);}
59	{CREATE TABLE tbl (a INTEGER PRIMARY KEY, b);}
60	{CREATE TEMPORARY TABLE tbl (a INTEGER PRIMARY KEY, b);}
61        {CREATE TABLE tbl (a, b PRIMARY KEY);}
62	{CREATE TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);}
63	{CREATE TEMP TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);}
64} {
65  incr ii
66  catchsql { DROP INDEX tbl_idx; }
67  catchsql {
68    DROP TABLE rlog;
69    DROP TABLE clog;
70    DROP TABLE tbl;
71    DROP TABLE other_tbl;
72  }
73
74  execsql $tbl_defn
75
76  execsql {
77    INSERT INTO tbl VALUES(1, 2);
78    INSERT INTO tbl VALUES(3, 4);
79
80    CREATE TABLE rlog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
81    CREATE TABLE clog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
82
83    CREATE TRIGGER before_update_row BEFORE UPDATE ON tbl FOR EACH ROW
84      BEGIN
85      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
86	  old.a, old.b,
87	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
88	  new.a, new.b);
89    END;
90
91    CREATE TRIGGER after_update_row AFTER UPDATE ON tbl FOR EACH ROW
92      BEGIN
93      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
94	  old.a, old.b,
95	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
96	  new.a, new.b);
97    END;
98
99    CREATE TRIGGER conditional_update_row AFTER UPDATE ON tbl FOR EACH ROW
100      WHEN old.a = 1
101      BEGIN
102      INSERT INTO clog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM clog),
103	  old.a, old.b,
104	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
105	  new.a, new.b);
106    END;
107  }
108
109  do_test trigger2-1.$ii.1 {
110    execsql {
111      UPDATE tbl SET a = a * 10, b = b * 10;
112      SELECT * FROM rlog ORDER BY idx;
113      SELECT * FROM clog ORDER BY idx;
114    }
115  } [list 1 1 2  4  6 10 20 \
116          2 1 2 13 24 10 20 \
117	  3 3 4 13 24 30 40 \
118	  4 3 4 40 60 30 40 \
119          1 1 2 13 24 10 20 ]
120
121  execsql {
122    DELETE FROM rlog;
123    DELETE FROM tbl;
124    INSERT INTO tbl VALUES (100, 100);
125    INSERT INTO tbl VALUES (300, 200);
126    CREATE TRIGGER delete_before_row BEFORE DELETE ON tbl FOR EACH ROW
127      BEGIN
128      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
129	  old.a, old.b,
130	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
131	  0, 0);
132    END;
133
134    CREATE TRIGGER delete_after_row AFTER DELETE ON tbl FOR EACH ROW
135      BEGIN
136      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
137	  old.a, old.b,
138	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
139	  0, 0);
140    END;
141  }
142  do_test trigger2-1.$ii.2 {
143    execsql {
144      DELETE FROM tbl;
145      SELECT * FROM rlog;
146    }
147  } [list 1 100 100 400 300 0 0 \
148          2 100 100 300 200 0 0 \
149          3 300 200 300 200 0 0 \
150          4 300 200 0 0 0 0 ]
151
152  execsql {
153    DELETE FROM rlog;
154    CREATE TRIGGER insert_before_row BEFORE INSERT ON tbl FOR EACH ROW
155      BEGIN
156      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
157	  0, 0,
158	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
159	  new.a, new.b);
160    END;
161
162    CREATE TRIGGER insert_after_row AFTER INSERT ON tbl FOR EACH ROW
163      BEGIN
164      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
165	  0, 0,
166	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
167	  new.a, new.b);
168    END;
169  }
170  do_test trigger2-1.$ii.3 {
171    execsql {
172
173      CREATE TABLE other_tbl(a, b);
174      INSERT INTO other_tbl VALUES(1, 2);
175      INSERT INTO other_tbl VALUES(3, 4);
176      -- INSERT INTO tbl SELECT * FROM other_tbl;
177      INSERT INTO tbl VALUES(5, 6);
178      DROP TABLE other_tbl;
179
180      SELECT * FROM rlog;
181    }
182  } [list 1 0 0 0 0 5 6 \
183          2 0 0 5 6 5 6 ]
184
185  do_test trigger2-1.$ii.4 {
186    execsql {
187      PRAGMA integrity_check;
188    }
189  } {ok}
190}
191catchsql {
192  DROP TABLE rlog;
193  DROP TABLE clog;
194  DROP TABLE tbl;
195  DROP TABLE other_tbl;
196}
197
198# 2.
199set ii 0
200foreach tr_program {
201  {UPDATE tbl SET b = old.b;}
202  {INSERT INTO log VALUES(new.c, 2, 3);}
203  {DELETE FROM log WHERE a = 1;}
204  {INSERT INTO tbl VALUES(500, new.b * 10, 700);
205    UPDATE tbl SET c = old.c;
206    DELETE FROM log;}
207  {INSERT INTO log select * from tbl;}
208} {
209  foreach test_varset [ list \
210    {
211      set statement {UPDATE tbl SET c = 10 WHERE a = 1;}
212      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
213      set newC 10
214      set newB 2
215      set newA 1
216      set oldA 1
217      set oldB 2
218      set oldC 3
219    } \
220    {
221      set statement {DELETE FROM tbl WHERE a = 1;}
222      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
223      set oldA 1
224      set oldB 2
225      set oldC 3
226    } \
227    {
228      set statement {INSERT INTO tbl VALUES(1, 2, 3);}
229      set newA 1
230      set newB 2
231      set newC 3
232    }
233  ] \
234  {
235    set statement {}
236    set prep {}
237    set newA {''}
238    set newB {''}
239    set newC {''}
240    set oldA {''}
241    set oldB {''}
242    set oldC {''}
243
244    incr ii
245
246    eval $test_varset
247
248    set statement_type [string range $statement 0 5]
249    set tr_program_fixed $tr_program
250    if {$statement_type == "DELETE"} {
251      regsub -all new\.a $tr_program_fixed {''} tr_program_fixed
252      regsub -all new\.b $tr_program_fixed {''} tr_program_fixed
253      regsub -all new\.c $tr_program_fixed {''} tr_program_fixed
254    }
255    if {$statement_type == "INSERT"} {
256      regsub -all old\.a $tr_program_fixed {''} tr_program_fixed
257      regsub -all old\.b $tr_program_fixed {''} tr_program_fixed
258      regsub -all old\.c $tr_program_fixed {''} tr_program_fixed
259    }
260
261
262    set tr_program_cooked $tr_program
263    regsub -all new\.a $tr_program_cooked $newA tr_program_cooked
264    regsub -all new\.b $tr_program_cooked $newB tr_program_cooked
265    regsub -all new\.c $tr_program_cooked $newC tr_program_cooked
266    regsub -all old\.a $tr_program_cooked $oldA tr_program_cooked
267    regsub -all old\.b $tr_program_cooked $oldB tr_program_cooked
268    regsub -all old\.c $tr_program_cooked $oldC tr_program_cooked
269
270    catchsql {
271      DROP TABLE tbl;
272      DROP TABLE log;
273    }
274
275    execsql {
276      CREATE TABLE tbl(a PRIMARY KEY, b, c);
277      CREATE TABLE log(a, b, c);
278    }
279
280    set query {SELECT * FROM tbl; SELECT * FROM log;}
281    set prep "$prep; INSERT INTO log VALUES(1, 2, 3);\
282             INSERT INTO log VALUES(10, 20, 30);"
283
284# Check execution of BEFORE programs:
285
286    set before_data [ execsql "$prep $tr_program_cooked $statement $query" ]
287
288    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
289    execsql "CREATE TRIGGER the_trigger BEFORE [string range $statement 0 6]\
290             ON tbl BEGIN $tr_program_fixed END;"
291
292    do_test trigger2-2.$ii-before "execsql {$statement $query}" $before_data
293
294    execsql "DROP TRIGGER the_trigger;"
295    execsql "DELETE FROM tbl; DELETE FROM log;"
296
297# Check execution of AFTER programs
298    set after_data [ execsql "$prep $statement $tr_program_cooked $query" ]
299
300    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
301    execsql "CREATE TRIGGER the_trigger AFTER [string range $statement 0 6]\
302             ON tbl BEGIN $tr_program_fixed END;"
303
304    do_test trigger2-2.$ii-after "execsql {$statement $query}" $after_data
305    execsql "DROP TRIGGER the_trigger;"
306
307    do_test trigger2-2.$ii-integrity {
308      execsql {
309        PRAGMA integrity_check;
310      }
311    } {ok}
312
313  }
314}
315catchsql {
316  DROP TABLE tbl;
317  DROP TABLE log;
318}
319
320# 3.
321
322# trigger2-3.1: UPDATE OF triggers
323execsql {
324  CREATE TABLE tbl (a, b, c, d);
325  CREATE TABLE log (a);
326  INSERT INTO log VALUES (0);
327  INSERT INTO tbl VALUES (0, 0, 0, 0);
328  INSERT INTO tbl VALUES (1, 0, 0, 0);
329  CREATE TRIGGER tbl_after_update_cd BEFORE UPDATE OF c, d ON tbl
330    BEGIN
331      UPDATE log SET a = a + 1;
332    END;
333}
334do_test trigger2-3.1 {
335  execsql {
336    UPDATE tbl SET b = 1, c = 10; -- 2
337    UPDATE tbl SET b = 10; -- 0
338    UPDATE tbl SET d = 4 WHERE a = 0; --1
339    UPDATE tbl SET a = 4, b = 10; --0
340    SELECT * FROM log;
341  }
342} {3}
343execsql {
344  DROP TABLE tbl;
345  DROP TABLE log;
346}
347
348# trigger2-3.2: WHEN clause
349set when_triggers [ list \
350             {t1 BEFORE INSERT ON tbl WHEN new.a > 20} \
351             {t2 BEFORE INSERT ON tbl WHEN (SELECT count(*) FROM tbl) = 0} ]
352
353execsql {
354  CREATE TABLE tbl (a, b, c, d);
355  CREATE TABLE log (a);
356  INSERT INTO log VALUES (0);
357}
358
359foreach trig $when_triggers {
360  execsql "CREATE TRIGGER $trig BEGIN UPDATE log set a = a + 1; END;"
361}
362
363do_test trigger2-3.2 {
364  execsql {
365
366    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 1
367    SELECT * FROM log;
368    UPDATE log SET a = 0;
369
370    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 0
371    SELECT * FROM log;
372    UPDATE log SET a = 0;
373
374    INSERT INTO tbl VALUES(200, 0, 0, 0);     -- 1
375    SELECT * FROM log;
376    UPDATE log SET a = 0;
377  }
378} {1 0 1}
379execsql {
380  DROP TABLE tbl;
381  DROP TABLE log;
382}
383do_test trigger2-3.3 {
384  execsql {
385    PRAGMA integrity_check;
386  }
387} {ok}
388
389# Simple cascaded trigger
390execsql {
391  CREATE TABLE tblA(a, b);
392  CREATE TABLE tblB(a, b);
393  CREATE TABLE tblC(a, b);
394
395  CREATE TRIGGER tr1 BEFORE INSERT ON tblA BEGIN
396    INSERT INTO tblB values(new.a, new.b);
397  END;
398
399  CREATE TRIGGER tr2 BEFORE INSERT ON tblB BEGIN
400    INSERT INTO tblC values(new.a, new.b);
401  END;
402}
403do_test trigger2-4.1 {
404  execsql {
405    INSERT INTO tblA values(1, 2);
406    SELECT * FROM tblA;
407    SELECT * FROM tblB;
408    SELECT * FROM tblC;
409  }
410} {1 2 1 2 1 2}
411execsql {
412  DROP TABLE tblA;
413  DROP TABLE tblB;
414  DROP TABLE tblC;
415}
416
417# Simple recursive trigger
418execsql {
419  CREATE TABLE tbl(a, b, c);
420  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl
421    BEGIN
422      INSERT INTO tbl VALUES (new.a, new.b, new.c);
423    END;
424}
425do_test trigger2-4.2 {
426  execsql {
427    INSERT INTO tbl VALUES (1, 2, 3);
428    select * from tbl;
429  }
430} {1 2 3 1 2 3}
431execsql {
432  DROP TABLE tbl;
433}
434
435# 5.
436execsql {
437  CREATE TABLE tbl(a, b, c);
438  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl
439    BEGIN
440      INSERT INTO tbl VALUES (1, 2, 3);
441      INSERT INTO tbl VALUES (2, 2, 3);
442      UPDATE tbl set b = 10 WHERE a = 1;
443      DELETE FROM tbl WHERE a = 1;
444      DELETE FROM tbl;
445    END;
446}
447do_test trigger2-5 {
448  execsql {
449    INSERT INTO tbl VALUES(100, 200, 300);
450  }
451  db changes
452} {1}
453execsql {
454  DROP TABLE tbl;
455}
456
457# Handling of ON CONFLICT by INSERT statements inside triggers
458execsql {
459  CREATE TABLE tbl (a primary key, b, c);
460  CREATE TRIGGER ai_tbl AFTER INSERT ON tbl BEGIN
461    INSERT OR IGNORE INTO tbl values (new.a, 0, 0);
462  END;
463}
464do_test trigger2-6.1a {
465  execsql {
466    BEGIN;
467    INSERT INTO tbl values (1, 2, 3);
468    SELECT * from tbl;
469  }
470} {1 2 3}
471do_test trigger2-6.1b {
472  catchsql {
473    INSERT OR ABORT INTO tbl values (2, 2, 3);
474  }
475} {1 {column a is not unique}}
476do_test trigger2-6.1c {
477  execsql {
478    SELECT * from tbl;
479  }
480} {1 2 3}
481do_test trigger2-6.1d {
482  catchsql {
483    INSERT OR FAIL INTO tbl values (2, 2, 3);
484  }
485} {1 {column a is not unique}}
486do_test trigger2-6.1e {
487  execsql {
488    SELECT * from tbl;
489  }
490} {1 2 3 2 2 3}
491do_test trigger2-6.1f {
492  execsql {
493    INSERT OR REPLACE INTO tbl values (2, 2, 3);
494    SELECT * from tbl;
495  }
496} {1 2 3 2 0 0}
497do_test trigger2-6.1g {
498  catchsql {
499    INSERT OR ROLLBACK INTO tbl values (3, 2, 3);
500  }
501} {1 {column a is not unique}}
502do_test trigger2-6.1h {
503  execsql {
504    SELECT * from tbl;
505  }
506} {}
507execsql {DELETE FROM tbl}
508
509
510# Handling of ON CONFLICT by UPDATE statements inside triggers
511execsql {
512  INSERT INTO tbl values (4, 2, 3);
513  INSERT INTO tbl values (6, 3, 4);
514  CREATE TRIGGER au_tbl AFTER UPDATE ON tbl BEGIN
515    UPDATE OR IGNORE tbl SET a = new.a, c = 10;
516  END;
517}
518do_test trigger2-6.2a {
519  execsql {
520    BEGIN;
521    UPDATE tbl SET a = 1 WHERE a = 4;
522    SELECT * from tbl;
523  }
524} {1 2 10 6 3 4}
525do_test trigger2-6.2b {
526  catchsql {
527    UPDATE OR ABORT tbl SET a = 4 WHERE a = 1;
528  }
529} {1 {column a is not unique}}
530do_test trigger2-6.2c {
531  execsql {
532    SELECT * from tbl;
533  }
534} {1 2 10 6 3 4}
535do_test trigger2-6.2d {
536  catchsql {
537    UPDATE OR FAIL tbl SET a = 4 WHERE a = 1;
538  }
539} {1 {column a is not unique}}
540do_test trigger2-6.2e {
541  execsql {
542    SELECT * from tbl;
543  }
544} {4 2 10 6 3 4}
545do_test trigger2-6.2f.1 {
546  execsql {
547    UPDATE OR REPLACE tbl SET a = 1 WHERE a = 4;
548    SELECT * from tbl;
549  }
550} {1 3 10}
551do_test trigger2-6.2f.2 {
552  execsql {
553    INSERT INTO tbl VALUES (2, 3, 4);
554    SELECT * FROM tbl;
555  }
556} {1 3 10 2 3 4}
557do_test trigger2-6.2g {
558  catchsql {
559    UPDATE OR ROLLBACK tbl SET a = 4 WHERE a = 1;
560  }
561} {1 {column a is not unique}}
562do_test trigger2-6.2h {
563  execsql {
564    SELECT * from tbl;
565  }
566} {4 2 3 6 3 4}
567execsql {
568  DROP TABLE tbl;
569}
570
571# 7. Triggers on views
572do_test trigger2-7.1 {
573  execsql {
574  CREATE TABLE ab(a, b);
575  CREATE TABLE cd(c, d);
576  INSERT INTO ab VALUES (1, 2);
577  INSERT INTO ab VALUES (0, 0);
578  INSERT INTO cd VALUES (3, 4);
579
580  CREATE TABLE tlog(ii INTEGER PRIMARY KEY,
581      olda, oldb, oldc, oldd, newa, newb, newc, newd);
582
583  CREATE VIEW abcd AS SELECT a, b, c, d FROM ab, cd;
584
585  CREATE TRIGGER before_update INSTEAD OF UPDATE ON abcd BEGIN
586    INSERT INTO tlog VALUES(NULL,
587	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
588  END;
589  CREATE TRIGGER after_update INSTEAD OF UPDATE ON abcd BEGIN
590    INSERT INTO tlog VALUES(NULL,
591	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
592  END;
593
594  CREATE TRIGGER before_delete INSTEAD OF DELETE ON abcd BEGIN
595    INSERT INTO tlog VALUES(NULL,
596	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
597  END;
598  CREATE TRIGGER after_delete INSTEAD OF DELETE ON abcd BEGIN
599    INSERT INTO tlog VALUES(NULL,
600	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
601  END;
602
603  CREATE TRIGGER before_insert INSTEAD OF INSERT ON abcd BEGIN
604    INSERT INTO tlog VALUES(NULL,
605	0, 0, 0, 0, new.a, new.b, new.c, new.d);
606  END;
607   CREATE TRIGGER after_insert INSTEAD OF INSERT ON abcd BEGIN
608    INSERT INTO tlog VALUES(NULL,
609	0, 0, 0, 0, new.a, new.b, new.c, new.d);
610   END;
611  }
612} {};
613
614do_test trigger2-7.2 {
615  execsql {
616    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
617    DELETE FROM abcd WHERE a = 1;
618    INSERT INTO abcd VALUES(10, 20, 30, 40);
619    SELECT * FROM tlog;
620  }
621} [ list 1 1 2 3 4 100 25 3 4 \
622         2 1 2 3 4 100 25 3 4 \
623	 3 1 2 3 4 0 0 0 0 \
624	 4 1 2 3 4 0 0 0 0 \
625	 5 0 0 0 0 10 20 30 40 \
626	 6 0 0 0 0 10 20 30 40 ]
627
628do_test trigger2-7.3 {
629  execsql {
630    DELETE FROM tlog;
631    INSERT INTO abcd VALUES(10, 20, 30, 40);
632    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
633    DELETE FROM abcd WHERE a = 1;
634    SELECT * FROM tlog;
635  }
636} [ list \
637   1 0 0 0 0 10 20 30 40 \
638   2 0 0 0 0 10 20 30 40 \
639   3 1 2 3 4 100 25 3 4 \
640   4 1 2 3 4 100 25 3 4 \
641   5 1 2 3 4 0 0 0 0 \
642   6 1 2 3 4 0 0 0 0 \
643]
644do_test trigger2-7.4 {
645  execsql {
646    DELETE FROM tlog;
647    DELETE FROM abcd WHERE a = 1;
648    INSERT INTO abcd VALUES(10, 20, 30, 40);
649    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
650    SELECT * FROM tlog;
651  }
652} [ list \
653   1 1 2 3 4 0 0 0 0 \
654   2 1 2 3 4 0 0 0 0 \
655   3 0 0 0 0 10 20 30 40 \
656   4 0 0 0 0 10 20 30 40 \
657   5 1 2 3 4 100 25 3 4 \
658   6 1 2 3 4 100 25 3 4 \
659]
660
661do_test trigger2-8.1 {
662  execsql {
663    CREATE TABLE t1(a,b,c);
664    INSERT INTO t1 VALUES(1,2,3);
665    CREATE VIEW v1 AS
666      SELECT a+b AS x, b+c AS y, a+c AS z FROM t1;
667    SELECT * FROM v1;
668  }
669} {3 5 4}
670do_test trigger2-8.2 {
671  execsql {
672    CREATE TABLE v1log(a,b,c,d,e,f);
673    CREATE TRIGGER r1 INSTEAD OF DELETE ON v1 BEGIN
674      INSERT INTO v1log VALUES(OLD.x,NULL,OLD.y,NULL,OLD.z,NULL);
675    END;
676    DELETE FROM v1 WHERE x=1;
677    SELECT * FROM v1log;
678  }
679} {}
680do_test trigger2-8.3 {
681  execsql {
682    DELETE FROM v1 WHERE x=3;
683    SELECT * FROM v1log;
684  }
685} {3 {} 5 {} 4 {}}
686do_test trigger2-8.4 {
687  execsql {
688    INSERT INTO t1 VALUES(4,5,6);
689    DELETE FROM v1log;
690    DELETE FROM v1 WHERE y=11;
691    SELECT * FROM v1log;
692  }
693} {9 {} 11 {} 10 {}}
694do_test trigger2-8.5 {
695  execsql {
696    CREATE TRIGGER r2 INSTEAD OF INSERT ON v1 BEGIN
697      INSERT INTO v1log VALUES(NULL,NEW.x,NULL,NEW.y,NULL,NEW.z);
698    END;
699    DELETE FROM v1log;
700    INSERT INTO v1 VALUES(1,2,3);
701    SELECT * FROM v1log;
702  }
703} {{} 1 {} 2 {} 3}
704do_test trigger2-8.6 {
705  execsql {
706    CREATE TRIGGER r3 INSTEAD OF UPDATE ON v1 BEGIN
707      INSERT INTO v1log VALUES(OLD.x,NEW.x,OLD.y,NEW.y,OLD.z,NEW.z);
708    END;
709    DELETE FROM v1log;
710    UPDATE v1 SET x=x+100, y=y+200, z=z+300;
711    SELECT * FROM v1log;
712  }
713} {3 103 5 205 4 304 9 109 11 211 10 310}
714
715do_test trigger2-9.9 {
716  execsql {PRAGMA integrity_check}
717} {ok}
718
719finish_test
720