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+# 2020 July 14
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfrom3
+
+# Test plan:
+#
+# 1.*: Test UPDATE ... FROM statements that modify IPK fields. And that
+# modify "INTEGER PRIMARY KEY" fields on WITHOUT ROWID tables.
+#
+# 2.*: Test UPDATE ... FROM statements that modify PK fields of WITHOUT
+# ROWID tables.
+#
+# 3.*: Test that UPDATE ... FROM statements are not confused if there
+# are multiple tables of the same name in attached databases.
+#
+# 4.*: Tests for UPDATE ... FROM statements and foreign keys.
+#
+
+foreach {tn wo} {
+ 1 ""
+ 2 "WITHOUT ROWID"
+} {
+ reset_db
+ eval [string map [list %WO% $wo %TN% $tn] {
+
+ do_execsql_test 1.%TN%.0 {
+ CREATE TABLE log(t TEXT);
+ CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z UNIQUE) %WO%;
+ CREATE INDEX t1y ON t1(y);
+
+ INSERT INTO t1 VALUES(1, 'i', 'one');
+ INSERT INTO t1 VALUES(2, 'ii', 'two');
+ INSERT INTO t1 VALUES(3, 'iii', 'three');
+ INSERT INTO t1 VALUES(4, 'iv', 'four');
+ }
+
+ do_execsql_test 1.%TN%.1 {
+ CREATE TABLE x1(o, n);
+ INSERT INTO x1 VALUES(1, 11);
+ INSERT INTO x1 VALUES(2, 12);
+ INSERT INTO x1 VALUES(3, 13);
+ INSERT INTO x1 VALUES(4, 14);
+ UPDATE t1 SET x=n FROM x1 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 11 i one
+ 12 ii two
+ 13 iii three
+ 14 iv four
+ }
+
+ do_test 1.%TN%.2 { db changes } 4
+
+ do_execsql_test 1.%TN%.3 {
+ INSERT INTO x1 VALUES(11, 21);
+ INSERT INTO x1 VALUES(12, 22);
+ INSERT INTO x1 VALUES(13, 23);
+ INSERT INTO x1 VALUES(14, 24);
+
+ INSERT INTO x1 VALUES(21, 31);
+ INSERT INTO x1 VALUES(22, 32);
+ INSERT INTO x1 VALUES(23, 33);
+ INSERT INTO x1 VALUES(24, 34);
+ UPDATE t1 SET x=n FROM x1 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 21 i one
+ 22 ii two
+ 23 iii three
+ 24 iv four
+ }
+
+ do_execsql_test 1.%TN%.4 {
+ UPDATE t1 SET x=n FROM x1 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 31 i one
+ 32 ii two
+ 33 iii three
+ 34 iv four
+ }
+
+ do_execsql_test 1.%TN%.5 {
+ INSERT INTO x1 VALUES(31, 32);
+ INSERT INTO x1 VALUES(33, 34);
+ UPDATE OR REPLACE t1 SET x=n FROM x1 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 32 i one
+ 34 iii three
+ }
+
+ do_execsql_test 1.%TN%.6 {
+ INSERT INTO t1 VALUES(33, 'ii', 'two');
+ INSERT INTO t1 VALUES(35, 'iv', 'four');
+ }
+
+ do_execsql_test 1.%TN%.7 {
+ CREATE TABLE x2(o, n, zz);
+ INSERT INTO x2 VALUES(32, 41, 'four');
+ INSERT INTO x2 VALUES(33, 42, 'three');
+ UPDATE OR IGNORE t1 SET x=n, z=zz FROM x2 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 32 i one
+ 33 ii two
+ 34 iii three
+ 35 iv four
+ }
+
+ do_execsql_test 1.%TN%.8 {
+ UPDATE OR REPLACE t1 SET x=n, z=zz FROM x2 WHERE x=o;
+ SELECT x, y, z FROM t1 ORDER BY 1;
+ } {
+ 41 i four
+ 42 ii three
+ }
+
+ }]
+}
+
+do_execsql_test 2.1.1 {
+ CREATE TABLE u1(a, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+ INSERT INTO u1 VALUES(0, 0, 0);
+ INSERT INTO u1 VALUES(1, 0, 1);
+ INSERT INTO u1 VALUES(2, 1, 0);
+ INSERT INTO u1 VALUES(3, 1, 1);
+}
+
+do_execsql_test 2.1.2 {
+ CREATE TABLE map(f, t);
+ INSERT INTO map VALUES(0, 10);
+ INSERT INTO map VALUES(1, 11);
+ UPDATE u1 SET c=t FROM map WHERE c=f;
+ SELECT * FROM u1 ORDER BY a;
+} {
+ 0 0 10
+ 1 0 11
+ 2 1 10
+ 3 1 11
+}
+
+do_execsql_test 2.1.3 {
+ UPDATE u1 SET b=t FROM map WHERE b=f;
+ SELECT * FROM u1 ORDER BY a;
+} {
+ 0 10 10
+ 1 10 11
+ 2 11 10
+ 3 11 11
+}
+
+do_execsql_test 2.1.4 {
+ CREATE TABLE map2(o1, o2, n1, n2);
+ INSERT INTO map2 VALUES
+ (10, 10, 50, 50), (10, 11, 50, 60),
+ (11, 10, 60, 50), (11, 11, 60, 60);
+ UPDATE u1 SET b=n1, c=n2 FROM map2 WHERE b=o1 AND c=o2;
+ SELECT * FROM u1 ORDER BY a;
+} {
+ 0 50 50
+ 1 50 60
+ 2 60 50
+ 3 60 60
+}
+
+#-------------------------------------------------------------------------
+foreach {tn wo} {
+ 1 ""
+ 2 "WITHOUT ROWID"
+} {
+ reset_db
+ forcedelete test.db2
+ eval [string map [list %WO% $wo %TN% $tn] {
+ do_execsql_test 3.$tn.1 {
+ CREATE TABLE g1(a, b, c, PRIMARY KEY(a, b)) %WO%;
+ INSERT INTO g1 VALUES(1, 1, 1);
+
+ ATTACH 'test.db2' AS aux;
+ CREATE TABLE aux.g1(a, b, c, PRIMARY KEY(a, b)) %WO%;
+ INSERT INTO aux.g1 VALUES(10, 1, 10);
+ INSERT INTO aux.g1 VALUES(20, 2, 20);
+ INSERT INTO aux.g1 VALUES(30, 3, 30);
+ }
+
+ do_execsql_test 3.$tn.2 {
+ UPDATE aux.g1 SET c=101 FROM main.g1;
+ }
+ do_execsql_test 3.$tn.3 {
+ SELECT * FROM aux.g1;
+ } {10 1 101 20 2 101 30 3 101}
+
+ do_execsql_test 3.$tn.4 {
+ UPDATE g1 SET c=101 FROM g1 AS g2;
+ }
+ do_execsql_test 3.$tn.5 {
+ SELECT * FROM g1;
+ } {1 1 101}
+ }]
+}
+
+#-------------------------------------------------------------------------
+reset_db
+foreach {tn wo} {
+ 1 ""
+ 2 "WITHOUT ROWID"
+} {
+ reset_db
+ forcedelete test.db2
+ eval [string map [list %WO% $wo %TN% $tn] {
+
+ do_execsql_test 4.$tn.1 {
+ CREATE TABLE p1(a INTEGER PRIMARY KEY, b) %WO%;
+ CREATE TABLE c1(x PRIMARY KEY, y REFERENCES p1 ON UPDATE CASCADE) %WO%;
+ PRAGMA foreign_keys = 1;
+
+ INSERT INTO p1 VALUES(1, 'one');
+ INSERT INTO p1 VALUES(11, 'eleven');
+ INSERT INTO p1 VALUES(111, 'eleventyone');
+
+ INSERT INTO c1 VALUES('a', 1);
+ INSERT INTO c1 VALUES('b', 11);
+ INSERT INTO c1 VALUES('c', 111);
+ }
+
+ do_execsql_test 4.$tn.2 {
+ CREATE TABLE map(f, t);
+ INSERT INTO map VALUES('a', 111);
+ INSERT INTO map VALUES('c', 112);
+ }
+
+ do_catchsql_test 4.$tn.3 {
+ UPDATE c1 SET y=t FROM map WHERE x=f;
+ } {1 {FOREIGN KEY constraint failed}}
+
+ do_execsql_test 4.$tn.4 {
+ INSERT INTO map VALUES('eleven', 12);
+ INSERT INTO map VALUES('eleventyone', 112);
+ UPDATE p1 SET a=t FROM map WHERE b=f;
+ }
+
+ do_execsql_test 4.$tn.5 {
+ SELECT * FROM c1
+ } {a 1 b 12 c 112}
+
+ }]
+}
+
+finish_test
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