xref: /titanic_51/usr/src/lib/libsqlite/test/trigger2.test (revision 356f72340a69936724c69f2f87fffa6f5887f885)
1
2#pragma ident	"%Z%%M%	%I%	%E% SMI"
3
4# The author disclaims copyright to this source code.  In place of
5# a legal notice, here is a blessing:
6#
7#    May you do good and not evil.
8#    May you find forgiveness for yourself and forgive others.
9#    May you share freely, never taking more than you give.
10#
11#***********************************************************************
12#
13# Regression testing of FOR EACH ROW table triggers
14#
15# 1. Trigger execution order tests.
16# These tests ensure that BEFORE and AFTER triggers are fired at the correct
17# times relative to each other and the triggering statement.
18#
19# trigger2-1.1.*: ON UPDATE trigger execution model.
20# trigger2-1.2.*: DELETE trigger execution model.
21# trigger2-1.3.*: INSERT trigger execution model.
22#
23# 2. Trigger program execution tests.
24# These tests ensure that trigger programs execute correctly (ie. that a
25# trigger program can correctly execute INSERT, UPDATE, DELETE * SELECT
26# statements, and combinations thereof).
27#
28# 3. Selective trigger execution
29# This tests that conditional triggers (ie. UPDATE OF triggers and triggers
30# with WHEN clauses) are fired only fired when they are supposed to be.
31#
32# trigger2-3.1: UPDATE OF triggers
33# trigger2-3.2: WHEN clause
34#
35# 4. Cascaded trigger execution
36# Tests that trigger-programs may cause other triggers to fire. Also that a
37# trigger-program is never executed recursively.
38#
39# trigger2-4.1: Trivial cascading trigger
40# trigger2-4.2: Trivial recursive trigger handling
41#
42# 5. Count changes behaviour.
43# Verify that rows altered by triggers are not included in the return value
44# of the "count changes" interface.
45#
46# 6. ON CONFLICT clause handling
47# trigger2-6.1[a-f]: INSERT statements
48# trigger2-6.2[a-f]: UPDATE statements
49#
50# 7. Triggers on views fire correctly.
51#
52
53set testdir [file dirname $argv0]
54source $testdir/tester.tcl
55
56# 1.
57set ii 0
58foreach tbl_defn {
59	{CREATE TEMP TABLE tbl (a, b);}
60	{CREATE TABLE tbl (a, b);}
61	{CREATE TABLE tbl (a INTEGER PRIMARY KEY, b);}
62	{CREATE TEMPORARY TABLE tbl (a INTEGER PRIMARY KEY, b);}
63        {CREATE TABLE tbl (a, b PRIMARY KEY);}
64	{CREATE TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);}
65	{CREATE TEMP TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);}
66} {
67  incr ii
68  catchsql { DROP INDEX tbl_idx; }
69  catchsql {
70    DROP TABLE rlog;
71    DROP TABLE clog;
72    DROP TABLE tbl;
73    DROP TABLE other_tbl;
74  }
75
76  execsql $tbl_defn
77
78  execsql {
79    INSERT INTO tbl VALUES(1, 2);
80    INSERT INTO tbl VALUES(3, 4);
81
82    CREATE TABLE rlog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
83    CREATE TABLE clog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
84
85    CREATE TRIGGER before_update_row BEFORE UPDATE ON tbl FOR EACH ROW
86      BEGIN
87      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
88	  old.a, old.b,
89	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
90	  new.a, new.b);
91    END;
92
93    CREATE TRIGGER after_update_row AFTER UPDATE ON tbl FOR EACH ROW
94      BEGIN
95      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
96	  old.a, old.b,
97	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
98	  new.a, new.b);
99    END;
100
101    CREATE TRIGGER conditional_update_row AFTER UPDATE ON tbl FOR EACH ROW
102      WHEN old.a = 1
103      BEGIN
104      INSERT INTO clog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM clog),
105	  old.a, old.b,
106	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
107	  new.a, new.b);
108    END;
109  }
110
111  do_test trigger2-1.$ii.1 {
112    execsql {
113      UPDATE tbl SET a = a * 10, b = b * 10;
114      SELECT * FROM rlog ORDER BY idx;
115      SELECT * FROM clog ORDER BY idx;
116    }
117  } [list 1 1 2  4  6 10 20 \
118          2 1 2 13 24 10 20 \
119	  3 3 4 13 24 30 40 \
120	  4 3 4 40 60 30 40 \
121          1 1 2 13 24 10 20 ]
122
123  execsql {
124    DELETE FROM rlog;
125    DELETE FROM tbl;
126    INSERT INTO tbl VALUES (100, 100);
127    INSERT INTO tbl VALUES (300, 200);
128    CREATE TRIGGER delete_before_row BEFORE DELETE ON tbl FOR EACH ROW
129      BEGIN
130      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
131	  old.a, old.b,
132	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
133	  0, 0);
134    END;
135
136    CREATE TRIGGER delete_after_row AFTER DELETE ON tbl FOR EACH ROW
137      BEGIN
138      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
139	  old.a, old.b,
140	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
141	  0, 0);
142    END;
143  }
144  do_test trigger2-1.$ii.2 {
145    execsql {
146      DELETE FROM tbl;
147      SELECT * FROM rlog;
148    }
149  } [list 1 100 100 400 300 0 0 \
150          2 100 100 300 200 0 0 \
151          3 300 200 300 200 0 0 \
152          4 300 200 0 0 0 0 ]
153
154  execsql {
155    DELETE FROM rlog;
156    CREATE TRIGGER insert_before_row BEFORE INSERT ON tbl FOR EACH ROW
157      BEGIN
158      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
159	  0, 0,
160	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
161	  new.a, new.b);
162    END;
163
164    CREATE TRIGGER insert_after_row AFTER INSERT ON tbl FOR EACH ROW
165      BEGIN
166      INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog),
167	  0, 0,
168	  (SELECT sum(a) FROM tbl), (SELECT sum(b) FROM tbl),
169	  new.a, new.b);
170    END;
171  }
172  do_test trigger2-1.$ii.3 {
173    execsql {
174
175      CREATE TABLE other_tbl(a, b);
176      INSERT INTO other_tbl VALUES(1, 2);
177      INSERT INTO other_tbl VALUES(3, 4);
178      -- INSERT INTO tbl SELECT * FROM other_tbl;
179      INSERT INTO tbl VALUES(5, 6);
180      DROP TABLE other_tbl;
181
182      SELECT * FROM rlog;
183    }
184  } [list 1 0 0 0 0 5 6 \
185          2 0 0 5 6 5 6 ]
186
187  do_test trigger2-1.$ii.4 {
188    execsql {
189      PRAGMA integrity_check;
190    }
191  } {ok}
192}
193catchsql {
194  DROP TABLE rlog;
195  DROP TABLE clog;
196  DROP TABLE tbl;
197  DROP TABLE other_tbl;
198}
199
200# 2.
201set ii 0
202foreach tr_program {
203  {UPDATE tbl SET b = old.b;}
204  {INSERT INTO log VALUES(new.c, 2, 3);}
205  {DELETE FROM log WHERE a = 1;}
206  {INSERT INTO tbl VALUES(500, new.b * 10, 700);
207    UPDATE tbl SET c = old.c;
208    DELETE FROM log;}
209  {INSERT INTO log select * from tbl;}
210} {
211  foreach test_varset [ list \
212    {
213      set statement {UPDATE tbl SET c = 10 WHERE a = 1;}
214      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
215      set newC 10
216      set newB 2
217      set newA 1
218      set oldA 1
219      set oldB 2
220      set oldC 3
221    } \
222    {
223      set statement {DELETE FROM tbl WHERE a = 1;}
224      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
225      set oldA 1
226      set oldB 2
227      set oldC 3
228    } \
229    {
230      set statement {INSERT INTO tbl VALUES(1, 2, 3);}
231      set newA 1
232      set newB 2
233      set newC 3
234    }
235  ] \
236  {
237    set statement {}
238    set prep {}
239    set newA {''}
240    set newB {''}
241    set newC {''}
242    set oldA {''}
243    set oldB {''}
244    set oldC {''}
245
246    incr ii
247
248    eval $test_varset
249
250    set statement_type [string range $statement 0 5]
251    set tr_program_fixed $tr_program
252    if {$statement_type == "DELETE"} {
253      regsub -all new\.a $tr_program_fixed {''} tr_program_fixed
254      regsub -all new\.b $tr_program_fixed {''} tr_program_fixed
255      regsub -all new\.c $tr_program_fixed {''} tr_program_fixed
256    }
257    if {$statement_type == "INSERT"} {
258      regsub -all old\.a $tr_program_fixed {''} tr_program_fixed
259      regsub -all old\.b $tr_program_fixed {''} tr_program_fixed
260      regsub -all old\.c $tr_program_fixed {''} tr_program_fixed
261    }
262
263
264    set tr_program_cooked $tr_program
265    regsub -all new\.a $tr_program_cooked $newA tr_program_cooked
266    regsub -all new\.b $tr_program_cooked $newB tr_program_cooked
267    regsub -all new\.c $tr_program_cooked $newC tr_program_cooked
268    regsub -all old\.a $tr_program_cooked $oldA tr_program_cooked
269    regsub -all old\.b $tr_program_cooked $oldB tr_program_cooked
270    regsub -all old\.c $tr_program_cooked $oldC tr_program_cooked
271
272    catchsql {
273      DROP TABLE tbl;
274      DROP TABLE log;
275    }
276
277    execsql {
278      CREATE TABLE tbl(a PRIMARY KEY, b, c);
279      CREATE TABLE log(a, b, c);
280    }
281
282    set query {SELECT * FROM tbl; SELECT * FROM log;}
283    set prep "$prep; INSERT INTO log VALUES(1, 2, 3);\
284             INSERT INTO log VALUES(10, 20, 30);"
285
286# Check execution of BEFORE programs:
287
288    set before_data [ execsql "$prep $tr_program_cooked $statement $query" ]
289
290    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
291    execsql "CREATE TRIGGER the_trigger BEFORE [string range $statement 0 6]\
292             ON tbl BEGIN $tr_program_fixed END;"
293
294    do_test trigger2-2.$ii-before "execsql {$statement $query}" $before_data
295
296    execsql "DROP TRIGGER the_trigger;"
297    execsql "DELETE FROM tbl; DELETE FROM log;"
298
299# Check execution of AFTER programs
300    set after_data [ execsql "$prep $statement $tr_program_cooked $query" ]
301
302    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
303    execsql "CREATE TRIGGER the_trigger AFTER [string range $statement 0 6]\
304             ON tbl BEGIN $tr_program_fixed END;"
305
306    do_test trigger2-2.$ii-after "execsql {$statement $query}" $after_data
307    execsql "DROP TRIGGER the_trigger;"
308
309    do_test trigger2-2.$ii-integrity {
310      execsql {
311        PRAGMA integrity_check;
312      }
313    } {ok}
314
315  }
316}
317catchsql {
318  DROP TABLE tbl;
319  DROP TABLE log;
320}
321
322# 3.
323
324# trigger2-3.1: UPDATE OF triggers
325execsql {
326  CREATE TABLE tbl (a, b, c, d);
327  CREATE TABLE log (a);
328  INSERT INTO log VALUES (0);
329  INSERT INTO tbl VALUES (0, 0, 0, 0);
330  INSERT INTO tbl VALUES (1, 0, 0, 0);
331  CREATE TRIGGER tbl_after_update_cd BEFORE UPDATE OF c, d ON tbl
332    BEGIN
333      UPDATE log SET a = a + 1;
334    END;
335}
336do_test trigger2-3.1 {
337  execsql {
338    UPDATE tbl SET b = 1, c = 10; -- 2
339    UPDATE tbl SET b = 10; -- 0
340    UPDATE tbl SET d = 4 WHERE a = 0; --1
341    UPDATE tbl SET a = 4, b = 10; --0
342    SELECT * FROM log;
343  }
344} {3}
345execsql {
346  DROP TABLE tbl;
347  DROP TABLE log;
348}
349
350# trigger2-3.2: WHEN clause
351set when_triggers [ list \
352             {t1 BEFORE INSERT ON tbl WHEN new.a > 20} \
353             {t2 BEFORE INSERT ON tbl WHEN (SELECT count(*) FROM tbl) = 0} ]
354
355execsql {
356  CREATE TABLE tbl (a, b, c, d);
357  CREATE TABLE log (a);
358  INSERT INTO log VALUES (0);
359}
360
361foreach trig $when_triggers {
362  execsql "CREATE TRIGGER $trig BEGIN UPDATE log set a = a + 1; END;"
363}
364
365do_test trigger2-3.2 {
366  execsql {
367
368    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 1
369    SELECT * FROM log;
370    UPDATE log SET a = 0;
371
372    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 0
373    SELECT * FROM log;
374    UPDATE log SET a = 0;
375
376    INSERT INTO tbl VALUES(200, 0, 0, 0);     -- 1
377    SELECT * FROM log;
378    UPDATE log SET a = 0;
379  }
380} {1 0 1}
381execsql {
382  DROP TABLE tbl;
383  DROP TABLE log;
384}
385do_test trigger2-3.3 {
386  execsql {
387    PRAGMA integrity_check;
388  }
389} {ok}
390
391# Simple cascaded trigger
392execsql {
393  CREATE TABLE tblA(a, b);
394  CREATE TABLE tblB(a, b);
395  CREATE TABLE tblC(a, b);
396
397  CREATE TRIGGER tr1 BEFORE INSERT ON tblA BEGIN
398    INSERT INTO tblB values(new.a, new.b);
399  END;
400
401  CREATE TRIGGER tr2 BEFORE INSERT ON tblB BEGIN
402    INSERT INTO tblC values(new.a, new.b);
403  END;
404}
405do_test trigger2-4.1 {
406  execsql {
407    INSERT INTO tblA values(1, 2);
408    SELECT * FROM tblA;
409    SELECT * FROM tblB;
410    SELECT * FROM tblC;
411  }
412} {1 2 1 2 1 2}
413execsql {
414  DROP TABLE tblA;
415  DROP TABLE tblB;
416  DROP TABLE tblC;
417}
418
419# Simple recursive trigger
420execsql {
421  CREATE TABLE tbl(a, b, c);
422  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl
423    BEGIN
424      INSERT INTO tbl VALUES (new.a, new.b, new.c);
425    END;
426}
427do_test trigger2-4.2 {
428  execsql {
429    INSERT INTO tbl VALUES (1, 2, 3);
430    select * from tbl;
431  }
432} {1 2 3 1 2 3}
433execsql {
434  DROP TABLE tbl;
435}
436
437# 5.
438execsql {
439  CREATE TABLE tbl(a, b, c);
440  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl
441    BEGIN
442      INSERT INTO tbl VALUES (1, 2, 3);
443      INSERT INTO tbl VALUES (2, 2, 3);
444      UPDATE tbl set b = 10 WHERE a = 1;
445      DELETE FROM tbl WHERE a = 1;
446      DELETE FROM tbl;
447    END;
448}
449do_test trigger2-5 {
450  execsql {
451    INSERT INTO tbl VALUES(100, 200, 300);
452  }
453  db changes
454} {1}
455execsql {
456  DROP TABLE tbl;
457}
458
459# Handling of ON CONFLICT by INSERT statements inside triggers
460execsql {
461  CREATE TABLE tbl (a primary key, b, c);
462  CREATE TRIGGER ai_tbl AFTER INSERT ON tbl BEGIN
463    INSERT OR IGNORE INTO tbl values (new.a, 0, 0);
464  END;
465}
466do_test trigger2-6.1a {
467  execsql {
468    BEGIN;
469    INSERT INTO tbl values (1, 2, 3);
470    SELECT * from tbl;
471  }
472} {1 2 3}
473do_test trigger2-6.1b {
474  catchsql {
475    INSERT OR ABORT INTO tbl values (2, 2, 3);
476  }
477} {1 {column a is not unique}}
478do_test trigger2-6.1c {
479  execsql {
480    SELECT * from tbl;
481  }
482} {1 2 3}
483do_test trigger2-6.1d {
484  catchsql {
485    INSERT OR FAIL INTO tbl values (2, 2, 3);
486  }
487} {1 {column a is not unique}}
488do_test trigger2-6.1e {
489  execsql {
490    SELECT * from tbl;
491  }
492} {1 2 3 2 2 3}
493do_test trigger2-6.1f {
494  execsql {
495    INSERT OR REPLACE INTO tbl values (2, 2, 3);
496    SELECT * from tbl;
497  }
498} {1 2 3 2 0 0}
499do_test trigger2-6.1g {
500  catchsql {
501    INSERT OR ROLLBACK INTO tbl values (3, 2, 3);
502  }
503} {1 {column a is not unique}}
504do_test trigger2-6.1h {
505  execsql {
506    SELECT * from tbl;
507  }
508} {}
509execsql {DELETE FROM tbl}
510
511
512# Handling of ON CONFLICT by UPDATE statements inside triggers
513execsql {
514  INSERT INTO tbl values (4, 2, 3);
515  INSERT INTO tbl values (6, 3, 4);
516  CREATE TRIGGER au_tbl AFTER UPDATE ON tbl BEGIN
517    UPDATE OR IGNORE tbl SET a = new.a, c = 10;
518  END;
519}
520do_test trigger2-6.2a {
521  execsql {
522    BEGIN;
523    UPDATE tbl SET a = 1 WHERE a = 4;
524    SELECT * from tbl;
525  }
526} {1 2 10 6 3 4}
527do_test trigger2-6.2b {
528  catchsql {
529    UPDATE OR ABORT tbl SET a = 4 WHERE a = 1;
530  }
531} {1 {column a is not unique}}
532do_test trigger2-6.2c {
533  execsql {
534    SELECT * from tbl;
535  }
536} {1 2 10 6 3 4}
537do_test trigger2-6.2d {
538  catchsql {
539    UPDATE OR FAIL tbl SET a = 4 WHERE a = 1;
540  }
541} {1 {column a is not unique}}
542do_test trigger2-6.2e {
543  execsql {
544    SELECT * from tbl;
545  }
546} {4 2 10 6 3 4}
547do_test trigger2-6.2f.1 {
548  execsql {
549    UPDATE OR REPLACE tbl SET a = 1 WHERE a = 4;
550    SELECT * from tbl;
551  }
552} {1 3 10}
553do_test trigger2-6.2f.2 {
554  execsql {
555    INSERT INTO tbl VALUES (2, 3, 4);
556    SELECT * FROM tbl;
557  }
558} {1 3 10 2 3 4}
559do_test trigger2-6.2g {
560  catchsql {
561    UPDATE OR ROLLBACK tbl SET a = 4 WHERE a = 1;
562  }
563} {1 {column a is not unique}}
564do_test trigger2-6.2h {
565  execsql {
566    SELECT * from tbl;
567  }
568} {4 2 3 6 3 4}
569execsql {
570  DROP TABLE tbl;
571}
572
573# 7. Triggers on views
574do_test trigger2-7.1 {
575  execsql {
576  CREATE TABLE ab(a, b);
577  CREATE TABLE cd(c, d);
578  INSERT INTO ab VALUES (1, 2);
579  INSERT INTO ab VALUES (0, 0);
580  INSERT INTO cd VALUES (3, 4);
581
582  CREATE TABLE tlog(ii INTEGER PRIMARY KEY,
583      olda, oldb, oldc, oldd, newa, newb, newc, newd);
584
585  CREATE VIEW abcd AS SELECT a, b, c, d FROM ab, cd;
586
587  CREATE TRIGGER before_update INSTEAD OF UPDATE ON abcd BEGIN
588    INSERT INTO tlog VALUES(NULL,
589	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
590  END;
591  CREATE TRIGGER after_update INSTEAD OF UPDATE ON abcd BEGIN
592    INSERT INTO tlog VALUES(NULL,
593	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
594  END;
595
596  CREATE TRIGGER before_delete INSTEAD OF DELETE ON abcd BEGIN
597    INSERT INTO tlog VALUES(NULL,
598	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
599  END;
600  CREATE TRIGGER after_delete INSTEAD OF DELETE ON abcd BEGIN
601    INSERT INTO tlog VALUES(NULL,
602	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
603  END;
604
605  CREATE TRIGGER before_insert INSTEAD OF INSERT ON abcd BEGIN
606    INSERT INTO tlog VALUES(NULL,
607	0, 0, 0, 0, new.a, new.b, new.c, new.d);
608  END;
609   CREATE TRIGGER after_insert INSTEAD OF INSERT ON abcd BEGIN
610    INSERT INTO tlog VALUES(NULL,
611	0, 0, 0, 0, new.a, new.b, new.c, new.d);
612   END;
613  }
614} {};
615
616do_test trigger2-7.2 {
617  execsql {
618    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
619    DELETE FROM abcd WHERE a = 1;
620    INSERT INTO abcd VALUES(10, 20, 30, 40);
621    SELECT * FROM tlog;
622  }
623} [ list 1 1 2 3 4 100 25 3 4 \
624         2 1 2 3 4 100 25 3 4 \
625	 3 1 2 3 4 0 0 0 0 \
626	 4 1 2 3 4 0 0 0 0 \
627	 5 0 0 0 0 10 20 30 40 \
628	 6 0 0 0 0 10 20 30 40 ]
629
630do_test trigger2-7.3 {
631  execsql {
632    DELETE FROM tlog;
633    INSERT INTO abcd VALUES(10, 20, 30, 40);
634    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
635    DELETE FROM abcd WHERE a = 1;
636    SELECT * FROM tlog;
637  }
638} [ list \
639   1 0 0 0 0 10 20 30 40 \
640   2 0 0 0 0 10 20 30 40 \
641   3 1 2 3 4 100 25 3 4 \
642   4 1 2 3 4 100 25 3 4 \
643   5 1 2 3 4 0 0 0 0 \
644   6 1 2 3 4 0 0 0 0 \
645]
646do_test trigger2-7.4 {
647  execsql {
648    DELETE FROM tlog;
649    DELETE FROM abcd WHERE a = 1;
650    INSERT INTO abcd VALUES(10, 20, 30, 40);
651    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
652    SELECT * FROM tlog;
653  }
654} [ list \
655   1 1 2 3 4 0 0 0 0 \
656   2 1 2 3 4 0 0 0 0 \
657   3 0 0 0 0 10 20 30 40 \
658   4 0 0 0 0 10 20 30 40 \
659   5 1 2 3 4 100 25 3 4 \
660   6 1 2 3 4 100 25 3 4 \
661]
662
663do_test trigger2-8.1 {
664  execsql {
665    CREATE TABLE t1(a,b,c);
666    INSERT INTO t1 VALUES(1,2,3);
667    CREATE VIEW v1 AS
668      SELECT a+b AS x, b+c AS y, a+c AS z FROM t1;
669    SELECT * FROM v1;
670  }
671} {3 5 4}
672do_test trigger2-8.2 {
673  execsql {
674    CREATE TABLE v1log(a,b,c,d,e,f);
675    CREATE TRIGGER r1 INSTEAD OF DELETE ON v1 BEGIN
676      INSERT INTO v1log VALUES(OLD.x,NULL,OLD.y,NULL,OLD.z,NULL);
677    END;
678    DELETE FROM v1 WHERE x=1;
679    SELECT * FROM v1log;
680  }
681} {}
682do_test trigger2-8.3 {
683  execsql {
684    DELETE FROM v1 WHERE x=3;
685    SELECT * FROM v1log;
686  }
687} {3 {} 5 {} 4 {}}
688do_test trigger2-8.4 {
689  execsql {
690    INSERT INTO t1 VALUES(4,5,6);
691    DELETE FROM v1log;
692    DELETE FROM v1 WHERE y=11;
693    SELECT * FROM v1log;
694  }
695} {9 {} 11 {} 10 {}}
696do_test trigger2-8.5 {
697  execsql {
698    CREATE TRIGGER r2 INSTEAD OF INSERT ON v1 BEGIN
699      INSERT INTO v1log VALUES(NULL,NEW.x,NULL,NEW.y,NULL,NEW.z);
700    END;
701    DELETE FROM v1log;
702    INSERT INTO v1 VALUES(1,2,3);
703    SELECT * FROM v1log;
704  }
705} {{} 1 {} 2 {} 3}
706do_test trigger2-8.6 {
707  execsql {
708    CREATE TRIGGER r3 INSTEAD OF UPDATE ON v1 BEGIN
709      INSERT INTO v1log VALUES(OLD.x,NEW.x,OLD.y,NEW.y,OLD.z,NEW.z);
710    END;
711    DELETE FROM v1log;
712    UPDATE v1 SET x=x+100, y=y+200, z=z+300;
713    SELECT * FROM v1log;
714  }
715} {3 103 5 205 4 304 9 109 11 211 10 310}
716
717do_test trigger2-9.9 {
718  execsql {PRAGMA integrity_check}
719} {ok}
720
721finish_test
722