1*1da57d55SToomas Soome# 27c478bd9Sstevel@tonic-gate# The author disclaims copyright to this source code. In place of 37c478bd9Sstevel@tonic-gate# a legal notice, here is a blessing: 47c478bd9Sstevel@tonic-gate# 57c478bd9Sstevel@tonic-gate# May you do good and not evil. 67c478bd9Sstevel@tonic-gate# May you find forgiveness for yourself and forgive others. 77c478bd9Sstevel@tonic-gate# May you share freely, never taking more than you give. 87c478bd9Sstevel@tonic-gate# 97c478bd9Sstevel@tonic-gate#*********************************************************************** 107c478bd9Sstevel@tonic-gate# 117c478bd9Sstevel@tonic-gate# Tests to make sure that value returned by last_statement_change_count() 127c478bd9Sstevel@tonic-gate# (LSCC) is updated properly, especially inside triggers 137c478bd9Sstevel@tonic-gate# 147c478bd9Sstevel@tonic-gate# Note 1: LSCC remains constant within a statement and only updates once 157c478bd9Sstevel@tonic-gate# the statement is finished (triggers count as part of statement) 167c478bd9Sstevel@tonic-gate# Note 2: LSCC is changed within the context of a trigger 177c478bd9Sstevel@tonic-gate# much like last_insert_rowid() (see lastinsert.test), 187c478bd9Sstevel@tonic-gate# but is restored once the trigger exits 197c478bd9Sstevel@tonic-gate# Note 3: LSCC is not changed by a change to a view (since everything 207c478bd9Sstevel@tonic-gate# is done within instead of trigger context) 217c478bd9Sstevel@tonic-gate# 227c478bd9Sstevel@tonic-gate 237c478bd9Sstevel@tonic-gateset testdir [file dirname $argv0] 247c478bd9Sstevel@tonic-gatesource $testdir/tester.tcl 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate# ---------------------------------------------------------------------------- 277c478bd9Sstevel@tonic-gate# 1.x - basic tests (no triggers) 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate# LSCC set properly after insert 307c478bd9Sstevel@tonic-gatedo_test laststmtchanges-1.1 { 317c478bd9Sstevel@tonic-gate catchsql { 327c478bd9Sstevel@tonic-gate create table t0 (x); 337c478bd9Sstevel@tonic-gate insert into t0 values (1); 347c478bd9Sstevel@tonic-gate insert into t0 values (1); 357c478bd9Sstevel@tonic-gate insert into t0 values (2); 367c478bd9Sstevel@tonic-gate insert into t0 values (2); 377c478bd9Sstevel@tonic-gate insert into t0 values (1); 387c478bd9Sstevel@tonic-gate insert into t0 values (1); 397c478bd9Sstevel@tonic-gate insert into t0 values (1); 407c478bd9Sstevel@tonic-gate insert into t0 values (2); 417c478bd9Sstevel@tonic-gate select last_statement_change_count(); 427c478bd9Sstevel@tonic-gate } 437c478bd9Sstevel@tonic-gate} {0 1} 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate# LSCC set properly after update 467c478bd9Sstevel@tonic-gatedo_test laststmtchanges-1.2 { 477c478bd9Sstevel@tonic-gate catchsql { 487c478bd9Sstevel@tonic-gate update t0 set x=3 where x=1; 497c478bd9Sstevel@tonic-gate select last_statement_change_count(); 507c478bd9Sstevel@tonic-gate } 517c478bd9Sstevel@tonic-gate} {0 5} 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate# LSCC unchanged within an update statement 547c478bd9Sstevel@tonic-gatedo_test laststmtchanges-1.3 { 557c478bd9Sstevel@tonic-gate catchsql { 567c478bd9Sstevel@tonic-gate update t0 set x=x+last_statement_change_count() where x=3; 577c478bd9Sstevel@tonic-gate select count() from t0 where x=8; 587c478bd9Sstevel@tonic-gate } 597c478bd9Sstevel@tonic-gate} {0 5} 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate# LSCC set properly after update on table where no rows changed 627c478bd9Sstevel@tonic-gatedo_test laststmtchanges-1.4 { 637c478bd9Sstevel@tonic-gate catchsql { 647c478bd9Sstevel@tonic-gate update t0 set x=77 where x=88; 657c478bd9Sstevel@tonic-gate select last_statement_change_count(); 667c478bd9Sstevel@tonic-gate } 677c478bd9Sstevel@tonic-gate} {0 0} 687c478bd9Sstevel@tonic-gate 697c478bd9Sstevel@tonic-gate# LSCC set properly after delete from table 707c478bd9Sstevel@tonic-gatedo_test laststmtchanges-1.5 { 717c478bd9Sstevel@tonic-gate catchsql { 727c478bd9Sstevel@tonic-gate delete from t0 where x=2; 737c478bd9Sstevel@tonic-gate select last_statement_change_count(); 747c478bd9Sstevel@tonic-gate } 757c478bd9Sstevel@tonic-gate} {0 3} 767c478bd9Sstevel@tonic-gate 777c478bd9Sstevel@tonic-gate# ---------------------------------------------------------------------------- 787c478bd9Sstevel@tonic-gate# 2.x - tests with after insert trigger 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate# LSCC changed properly after insert into table containing after trigger 817c478bd9Sstevel@tonic-gatedo_test laststmtchanges-2.1 { 827c478bd9Sstevel@tonic-gate catchsql { 837c478bd9Sstevel@tonic-gate create table t1 (k integer primary key); 847c478bd9Sstevel@tonic-gate create table t2 (k integer primary key, v1, v2); 857c478bd9Sstevel@tonic-gate create trigger r1 after insert on t1 for each row begin 867c478bd9Sstevel@tonic-gate insert into t2 values (NULL, last_statement_change_count(), NULL); 877c478bd9Sstevel@tonic-gate update t0 set x=x; 887c478bd9Sstevel@tonic-gate update t2 set v2=last_statement_change_count(); 897c478bd9Sstevel@tonic-gate end; 907c478bd9Sstevel@tonic-gate insert into t1 values (77); 917c478bd9Sstevel@tonic-gate select last_statement_change_count(); 927c478bd9Sstevel@tonic-gate } 937c478bd9Sstevel@tonic-gate} {0 1} 947c478bd9Sstevel@tonic-gate 957c478bd9Sstevel@tonic-gate# LSCC unchanged upon entry into after insert trigger 967c478bd9Sstevel@tonic-gatedo_test laststmtchanges-2.2 { 977c478bd9Sstevel@tonic-gate catchsql { 987c478bd9Sstevel@tonic-gate select v1 from t2; 997c478bd9Sstevel@tonic-gate } 1007c478bd9Sstevel@tonic-gate} {0 3} 1017c478bd9Sstevel@tonic-gate 1027c478bd9Sstevel@tonic-gate# LSCC changed properly by update within context of after insert trigger 1037c478bd9Sstevel@tonic-gatedo_test laststmtchanges-2.3 { 1047c478bd9Sstevel@tonic-gate catchsql { 1057c478bd9Sstevel@tonic-gate select v2 from t2; 1067c478bd9Sstevel@tonic-gate } 1077c478bd9Sstevel@tonic-gate} {0 5} 1087c478bd9Sstevel@tonic-gate 1097c478bd9Sstevel@tonic-gate# ---------------------------------------------------------------------------- 1107c478bd9Sstevel@tonic-gate# 3.x - tests with after update trigger 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate# LSCC changed properly after update into table containing after trigger 1137c478bd9Sstevel@tonic-gatedo_test laststmtchanges-3.1 { 1147c478bd9Sstevel@tonic-gate catchsql { 1157c478bd9Sstevel@tonic-gate drop trigger r1; 1167c478bd9Sstevel@tonic-gate delete from t2; delete from t2; 1177c478bd9Sstevel@tonic-gate create trigger r1 after update on t1 for each row begin 1187c478bd9Sstevel@tonic-gate insert into t2 values (NULL, last_statement_change_count(), NULL); 1197c478bd9Sstevel@tonic-gate delete from t0 where oid=1 or oid=2; 1207c478bd9Sstevel@tonic-gate update t2 set v2=last_statement_change_count(); 1217c478bd9Sstevel@tonic-gate end; 1227c478bd9Sstevel@tonic-gate update t1 set k=k; 1237c478bd9Sstevel@tonic-gate select last_statement_change_count(); 1247c478bd9Sstevel@tonic-gate } 1257c478bd9Sstevel@tonic-gate} {0 1} 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate# LSCC unchanged upon entry into after update trigger 1287c478bd9Sstevel@tonic-gatedo_test laststmtchanges-3.2 { 1297c478bd9Sstevel@tonic-gate catchsql { 1307c478bd9Sstevel@tonic-gate select v1 from t2; 1317c478bd9Sstevel@tonic-gate } 1327c478bd9Sstevel@tonic-gate} {0 0} 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate# LSCC changed properly by delete within context of after update trigger 1357c478bd9Sstevel@tonic-gatedo_test laststmtchanges-3.3 { 1367c478bd9Sstevel@tonic-gate catchsql { 1377c478bd9Sstevel@tonic-gate select v2 from t2; 1387c478bd9Sstevel@tonic-gate } 1397c478bd9Sstevel@tonic-gate} {0 2} 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate# ---------------------------------------------------------------------------- 1427c478bd9Sstevel@tonic-gate# 4.x - tests with before delete trigger 1437c478bd9Sstevel@tonic-gate 1447c478bd9Sstevel@tonic-gate# LSCC changed properly on delete from table containing before trigger 1457c478bd9Sstevel@tonic-gatedo_test laststmtchanges-4.1 { 1467c478bd9Sstevel@tonic-gate catchsql { 1477c478bd9Sstevel@tonic-gate drop trigger r1; 1487c478bd9Sstevel@tonic-gate delete from t2; delete from t2; 1497c478bd9Sstevel@tonic-gate create trigger r1 before delete on t1 for each row begin 1507c478bd9Sstevel@tonic-gate insert into t2 values (NULL, last_statement_change_count(), NULL); 1517c478bd9Sstevel@tonic-gate insert into t0 values (5); 1527c478bd9Sstevel@tonic-gate update t2 set v2=last_statement_change_count(); 1537c478bd9Sstevel@tonic-gate end; 1547c478bd9Sstevel@tonic-gate delete from t1; 1557c478bd9Sstevel@tonic-gate select last_statement_change_count(); 1567c478bd9Sstevel@tonic-gate } 1577c478bd9Sstevel@tonic-gate} {0 1} 1587c478bd9Sstevel@tonic-gate 1597c478bd9Sstevel@tonic-gate# LSCC unchanged upon entry into before delete trigger 1607c478bd9Sstevel@tonic-gatedo_test laststmtchanges-4.2 { 1617c478bd9Sstevel@tonic-gate catchsql { 1627c478bd9Sstevel@tonic-gate select v1 from t2; 1637c478bd9Sstevel@tonic-gate } 1647c478bd9Sstevel@tonic-gate} {0 0} 1657c478bd9Sstevel@tonic-gate 1667c478bd9Sstevel@tonic-gate# LSCC changed properly by insert within context of before delete trigger 1677c478bd9Sstevel@tonic-gatedo_test laststmtchanges-4.3 { 1687c478bd9Sstevel@tonic-gate catchsql { 1697c478bd9Sstevel@tonic-gate select v2 from t2; 1707c478bd9Sstevel@tonic-gate } 1717c478bd9Sstevel@tonic-gate} {0 1} 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate# ---------------------------------------------------------------------------- 1747c478bd9Sstevel@tonic-gate# 5.x - complex tests with temporary tables and nested instead of triggers 1757c478bd9Sstevel@tonic-gate 1767c478bd9Sstevel@tonic-gatedo_test laststmtchanges-5.1 { 1777c478bd9Sstevel@tonic-gate catchsql { 1787c478bd9Sstevel@tonic-gate drop table t0; drop table t1; drop table t2; 1797c478bd9Sstevel@tonic-gate create temp table t0(x); 1807c478bd9Sstevel@tonic-gate create temp table t1 (k integer primary key); 1817c478bd9Sstevel@tonic-gate create temp table t2 (k integer primary key); 1827c478bd9Sstevel@tonic-gate create temp view v1 as select * from t1; 1837c478bd9Sstevel@tonic-gate create temp view v2 as select * from t2; 1847c478bd9Sstevel@tonic-gate create temp table n1 (k integer primary key, n); 1857c478bd9Sstevel@tonic-gate create temp table n2 (k integer primary key, n); 1867c478bd9Sstevel@tonic-gate insert into t0 values (1); 1877c478bd9Sstevel@tonic-gate insert into t0 values (2); 1887c478bd9Sstevel@tonic-gate insert into t0 values (1); 1897c478bd9Sstevel@tonic-gate insert into t0 values (1); 1907c478bd9Sstevel@tonic-gate insert into t0 values (1); 1917c478bd9Sstevel@tonic-gate insert into t0 values (2); 1927c478bd9Sstevel@tonic-gate insert into t0 values (2); 1937c478bd9Sstevel@tonic-gate insert into t0 values (1); 1947c478bd9Sstevel@tonic-gate create temp trigger r1 instead of insert on v1 for each row begin 1957c478bd9Sstevel@tonic-gate insert into n1 values (NULL, last_statement_change_count()); 1967c478bd9Sstevel@tonic-gate update t0 set x=x*10 where x=1; 1977c478bd9Sstevel@tonic-gate insert into n1 values (NULL, last_statement_change_count()); 1987c478bd9Sstevel@tonic-gate insert into t1 values (NEW.k); 1997c478bd9Sstevel@tonic-gate insert into n1 values (NULL, last_statement_change_count()); 2007c478bd9Sstevel@tonic-gate update t0 set x=x*10 where x=0; 2017c478bd9Sstevel@tonic-gate insert into v2 values (100+NEW.k); 2027c478bd9Sstevel@tonic-gate insert into n1 values (NULL, last_statement_change_count()); 2037c478bd9Sstevel@tonic-gate end; 2047c478bd9Sstevel@tonic-gate create temp trigger r2 instead of insert on v2 for each row begin 2057c478bd9Sstevel@tonic-gate insert into n2 values (NULL, last_statement_change_count()); 2067c478bd9Sstevel@tonic-gate insert into t2 values (1000+NEW.k); 2077c478bd9Sstevel@tonic-gate insert into n2 values (NULL, last_statement_change_count()); 2087c478bd9Sstevel@tonic-gate update t0 set x=x*100 where x=0; 2097c478bd9Sstevel@tonic-gate insert into n2 values (NULL, last_statement_change_count()); 2107c478bd9Sstevel@tonic-gate delete from t0 where x=2; 2117c478bd9Sstevel@tonic-gate insert into n2 values (NULL, last_statement_change_count()); 2127c478bd9Sstevel@tonic-gate end; 2137c478bd9Sstevel@tonic-gate insert into t1 values (77); 2147c478bd9Sstevel@tonic-gate select last_statement_change_count(); 2157c478bd9Sstevel@tonic-gate } 2167c478bd9Sstevel@tonic-gate} {0 1} 2177c478bd9Sstevel@tonic-gate 2187c478bd9Sstevel@tonic-gatedo_test laststmtchanges-5.2 { 2197c478bd9Sstevel@tonic-gate catchsql { 2207c478bd9Sstevel@tonic-gate delete from t1 where k=88; 2217c478bd9Sstevel@tonic-gate select last_statement_change_count(); 2227c478bd9Sstevel@tonic-gate } 2237c478bd9Sstevel@tonic-gate} {0 0} 2247c478bd9Sstevel@tonic-gate 2257c478bd9Sstevel@tonic-gatedo_test laststmtchanges-5.3 { 2267c478bd9Sstevel@tonic-gate catchsql { 2277c478bd9Sstevel@tonic-gate insert into v1 values (5); 2287c478bd9Sstevel@tonic-gate select last_statement_change_count(); 2297c478bd9Sstevel@tonic-gate } 2307c478bd9Sstevel@tonic-gate} {0 0} 2317c478bd9Sstevel@tonic-gate 2327c478bd9Sstevel@tonic-gatedo_test laststmtchanges-5.4 { 2337c478bd9Sstevel@tonic-gate catchsql { 2347c478bd9Sstevel@tonic-gate select n from n1; 2357c478bd9Sstevel@tonic-gate } 2367c478bd9Sstevel@tonic-gate} {0 {0 5 1 0}} 2377c478bd9Sstevel@tonic-gate 2387c478bd9Sstevel@tonic-gatedo_test laststmtchanges-5.5 { 2397c478bd9Sstevel@tonic-gate catchsql { 2407c478bd9Sstevel@tonic-gate select n from n2; 2417c478bd9Sstevel@tonic-gate } 2427c478bd9Sstevel@tonic-gate} {0 {0 1 0 3}} 2437c478bd9Sstevel@tonic-gate 2447c478bd9Sstevel@tonic-gatefinish_test 2457c478bd9Sstevel@tonic-gate 246