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# 2016-08-18
#
# 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.
#
#***********************************************************************
# The focus of this file is vector assignments in the SET clause of
# an UPDATE statement.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix rowvalue7
do_execsql_test 1.1 {
CREATE TABLE t1(a,b,c,d);
CREATE INDEX t1x ON t1(a,b);
INSERT INTO t1(a,b,c,d) VALUES(1,2,0,0),(3,4,0,0),(5,6,0,0);
CREATE TABLE t2(w,x,y,z);
CREATE INDEX t2x ON t2(w,x);
INSERT INTO t2(w,x,y,z) VALUES(1,2,11,22),(8,9,88,99),(3,5,33,55),(5,6,55,66);
SELECT *,'|' FROM t1 ORDER BY a;
} {1 2 0 0 | 3 4 0 0 | 5 6 0 0 |}
do_execsql_test 1.2 {
UPDATE t1 SET (c,d) = (SELECT y,z FROM t2 WHERE (w,x)=(a,b));
SELECT *,'|' FROM t1 ORDER BY a;
} {1 2 11 22 | 3 4 {} {} | 5 6 55 66 |}
do_execsql_test 1.3 {
UPDATE t1 SET (c,d) = (SELECT y,z FROM t2 WHERE w=a);
SELECT *,'|' FROM t1 ORDER BY a;
} {1 2 11 22 | 3 4 33 55 | 5 6 55 66 |}
do_execsql_test 1.4 {
UPDATE t1 SET (c) = 99 WHERE a=3;
SELECT *,'|' FROM t1 ORDER BY a;
} {1 2 11 22 | 3 4 99 55 | 5 6 55 66 |}
do_execsql_test 1.5 {
UPDATE t1 SET b = 8, (c,d) = (SELECT 123,456) WHERE a=3;
SELECT *,'|' FROM t1 ORDER BY a;
} {1 2 11 22 | 3 8 123 456 | 5 6 55 66 |}
do_catchsql_test 2.1 {
UPDATE t1 SET (c,d) = (SELECT x,y,z FROM t2 WHERE w=a);
} {1 {2 columns assigned 3 values}}
do_catchsql_test 2.2 {
UPDATE t1 SET (b,c,d) = (SELECT x,y FROM t2 WHERE w=a);
} {1 {3 columns assigned 2 values}}
# 2019-08-26
# ticket https://www.sqlite.org/src/info/78acc9d40f0786e8
#
do_catchsql_test 3.0 {
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(1,2);
UPDATE t1 SET (a,a,a,b)=(SELECT 99,100);
} {1 {4 columns assigned 2 values}}
finish_test
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