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Fixed behaviour of last_insert_rowid() with triggers and add last_statement_change_count() function that works correctly with triggers. (CVS 1252)
FossilOrigin-Name: 6734c923395ca41ce453f56dd7d6e7794fbb3bb5
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rdc
319
test/lastinsert.test
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319
test/lastinsert.test
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Tests to make sure that value returned by last_insert_rowid() (LIRID)
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# is updated properly, especially inside triggers
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#
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# Note 1: insert into table is now the only statement which changes LIRID
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# Note 2: upon entry into before or instead of triggers,
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# LIRID is unchanged (rather than -1)
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# Note 3: LIRID is changed within the context of a trigger,
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# but is restored once the trigger exits
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# Note 4: LIRID is not changed by an insert into a view (since everything
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# is done within instead of trigger context)
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# ----------------------------------------------------------------------------
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# 1.x - basic tests (no triggers)
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# LIRID changed properly after an insert into a table
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do_test lastinsert-1.1 {
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catchsql {
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create table t1 (k integer primary key);
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insert into t1 values (1);
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insert into t1 values (NULL);
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insert into t1 values (NULL);
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select last_insert_rowid();
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}
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} {0 3}
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# LIRID unchanged after an update on a table
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do_test lastinsert-1.2 {
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catchsql {
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update t1 set k=4 where k=2;
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select last_insert_rowid();
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}
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} {0 3}
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# LIRID unchanged after a delete from a table
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do_test lastinsert-1.3 {
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catchsql {
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delete from t1 where k=4;
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select last_insert_rowid();
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}
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} {0 3}
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# LIRID unchanged after create table/view statements
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do_test lastinsert-1.4 {
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catchsql {
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create table t2 (k integer primary key, val1, val2, val3);
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create view v as select * from t1;
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select last_insert_rowid();
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}
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} {0 3}
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# ----------------------------------------------------------------------------
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# 2.x - tests with after insert trigger
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# LIRID changed properly after an insert into table containing an after trigger
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do_test lastinsert-2.1 {
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catchsql {
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delete from t2;
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create trigger r1 after insert on t1 for each row begin
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insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
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update t2 set k=k+10, val2=100+last_insert_rowid();
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update t2 set val3=1000+last_insert_rowid();
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end;
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insert into t1 values (13);
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select last_insert_rowid();
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}
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} {0 13}
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# LIRID equals NEW.k upon entry into after insert trigger
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do_test lastinsert-2.2 {
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catchsql {
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select val1 from t2;
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}
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} {0 13}
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# LIRID changed properly by insert within context of after insert trigger
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do_test lastinsert-2.3 {
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catchsql {
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select val2 from t2;
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}
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} {0 126}
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# LIRID unchanged by update within context of after insert trigger
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do_test lastinsert-2.4 {
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catchsql {
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select val3 from t2;
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}
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} {0 1026}
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# ----------------------------------------------------------------------------
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# 3.x - tests with after update trigger
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# LIRID not changed after an update onto a table containing an after trigger
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do_test lastinsert-3.1 {
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catchsql {
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delete from t2;
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drop trigger r1;
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create trigger r1 after update on t1 for each row begin
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insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
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update t2 set k=k+10, val2=100+last_insert_rowid();
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update t2 set val3=1000+last_insert_rowid();
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end;
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update t1 set k=14 where k=3;
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select last_insert_rowid();
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}
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} {0 13}
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# LIRID unchanged upon entry into after update trigger
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do_test lastinsert-3.2 {
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catchsql {
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select val1 from t2;
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}
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} {0 13}
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# LIRID changed properly by insert within context of after update trigger
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do_test lastinsert-3.3 {
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catchsql {
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select val2 from t2;
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}
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} {0 128}
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# LIRID unchanged by update within context of after update trigger
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do_test lastinsert-3.4 {
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catchsql {
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select val3 from t2;
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}
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} {0 1028}
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# ----------------------------------------------------------------------------
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# 4.x - tests with instead of insert trigger
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# LIRID not changed after an insert into view containing an instead of trigger
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do_test lastinsert-4.1 {
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catchsql {
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delete from t2;
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drop trigger r1;
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create trigger r1 instead of insert on v for each row begin
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insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
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update t2 set k=k+10, val2=100+last_insert_rowid();
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update t2 set val3=1000+last_insert_rowid();
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end;
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insert into v values (15);
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select last_insert_rowid();
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}
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} {0 13}
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# LIRID unchanged upon entry into instead of trigger
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do_test lastinsert-4.2 {
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catchsql {
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select val1 from t2;
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}
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} {0 13}
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# LIRID changed properly by insert within context of instead of trigger
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do_test lastinsert-4.3 {
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catchsql {
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select val2 from t2;
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}
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} {0 130}
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# LIRID unchanged by update within context of instead of trigger
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do_test lastinsert-4.4 {
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catchsql {
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select val3 from t2;
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}
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} {0 1030}
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# ----------------------------------------------------------------------------
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# 5.x - tests with before delete trigger
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# LIRID not changed after a delete on a table containing a before trigger
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do_test lastinsert-5.1 {
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catchsql {
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delete from t2;
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drop trigger r1;
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create trigger r1 before delete on t1 for each row begin
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insert into t2 values (77, last_insert_rowid(), NULL, NULL);
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update t2 set k=k+10, val2=100+last_insert_rowid();
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update t2 set val3=1000+last_insert_rowid();
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end;
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delete from t1 where k=1;
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select last_insert_rowid();
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}
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} {0 13}
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# LIRID unchanged upon entry into delete trigger
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do_test lastinsert-5.2 {
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catchsql {
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select val1 from t2;
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}
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} {0 13}
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# LIRID changed properly by insert within context of delete trigger
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do_test lastinsert-5.3 {
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catchsql {
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select val2 from t2;
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}
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} {0 177}
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# LIRID unchanged by update within context of delete trigger
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do_test lastinsert-5.4 {
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catchsql {
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select val3 from t2;
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}
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} {0 1077}
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# ----------------------------------------------------------------------------
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# 6.x - tests with instead of update trigger
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# LIRID not changed after an update on a view containing an instead of trigger
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do_test lastinsert-6.1 {
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catchsql {
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delete from t2;
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drop trigger r1;
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create trigger r1 instead of update on v for each row begin
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insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
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update t2 set k=k+10, val2=100+last_insert_rowid();
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update t2 set val3=1000+last_insert_rowid();
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end;
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update v set k=16 where k=14;
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select last_insert_rowid();
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}
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} {0 13}
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# LIRID unchanged upon entry into instead of trigger
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do_test lastinsert-6.2 {
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catchsql {
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select val1 from t2;
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}
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} {0 13}
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# LIRID changed properly by insert within context of instead of trigger
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do_test lastinsert-6.3 {
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catchsql {
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select val2 from t2;
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}
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} {0 132}
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# LIRID unchanged by update within context of instead of trigger
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do_test lastinsert-6.4 {
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catchsql {
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select val3 from t2;
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}
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} {0 1032}
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# ----------------------------------------------------------------------------
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# 7.x - complex tests with temporary tables and nested instead of triggers
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do_test lastinsert-7.1 {
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catchsql {
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drop table t1; drop table t2; drop trigger r1;
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create temp table t1 (k integer primary key);
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create temp table t2 (k integer primary key);
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create temp view v1 as select * from t1;
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create temp view v2 as select * from t2;
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create temp table rid (k integer primary key, rin, rout);
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insert into rid values (1, NULL, NULL);
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insert into rid values (2, NULL, NULL);
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create temp trigger r1 instead of insert on v1 for each row begin
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update rid set rin=last_insert_rowid() where k=1;
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insert into t1 values (100+NEW.k);
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insert into v2 values (100+last_insert_rowid());
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update rid set rout=last_insert_rowid() where k=1;
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end;
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create temp trigger r2 instead of insert on v2 for each row begin
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update rid set rin=last_insert_rowid() where k=2;
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insert into t2 values (1000+NEW.k);
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update rid set rout=last_insert_rowid() where k=2;
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end;
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insert into t1 values (77);
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select last_insert_rowid();
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}
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} {0 77}
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do_test lastinsert-7.2 {
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catchsql {
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insert into v1 values (5);
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select last_insert_rowid();
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}
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} {0 77}
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do_test lastinsert-7.3 {
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catchsql {
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select rin from rid where k=1;
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}
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} {0 77}
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do_test lastinsert-7.4 {
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catchsql {
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select rout from rid where k=1;
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}
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} {0 105}
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do_test lastinsert-7.5 {
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catchsql {
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select rin from rid where k=2;
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}
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} {0 105}
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do_test lastinsert-7.6 {
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catchsql {
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select rout from rid where k=2;
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}
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} {0 1205}
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finish_test
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