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Fix a weird corner case in aggregate function processing that results from the

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recent addition of support for index expressions on aggregate queries.
[forum:/forumpost/bad532820c|Forum post bad532820c].

FossilOrigin-Name: c34fd9fe1b76e0a5943f014f46141cbe55d41bb1e6980adf9bcb6785a03e7883
This commit is contained in:
drh
2023-03-28 16:02:28 +00:00
parent 3cbf38c783
commit e1be2b7ad9
4 changed files with 54 additions and 12 deletions
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test/window1.test
+39
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@@ -2276,5 +2276,44 @@ do_catchsql_test 73.7 {
UPDATE t2 SET c=nth_value(15,2) OVER() FROM (SELECT * FROM t1) WHERE b=4 RETURNING *;
} {1 {cannot modify t2 because it is a view}}
# 2023-03-28 https://sqlite.org/forum/forumpost/bad532820c
#
reset_db
do_execsql_test 74.0 {
CREATE TABLE t1 (a INT, b INT);
CREATE TABLE t2 (c INT, d INT);
CREATE INDEX idx ON t1(abs(a));
INSERT INTO t1 VALUES(1,2),(3,4);
INSERT INTO t2 VALUES(5,6),(7,8);
}
do_execsql_test 74.1 {
SELECT (
SELECT count( a ) FROM t2 LIMIT 1
)
FROM t1;
} {2} ;# Verified using PG 14.2
do_execsql_test 74.2 {
SELECT (
SELECT count( a+c ) FROM t2 LIMIT 1
)
FROM t1;
} {2 2} ;# verified on PG 14.2. Crashes PG 9.6!
do_execsql_test 74.3 {
SELECT (
SELECT count( ( SELECT(sum(0) OVER(ORDER BY c, abs(a))) ) )
FROM t2 GROUP BY c LIMIT 1
)
FROM t1;
} {1 1} ;# verified on PG 14.2
do_execsql_test 74.4 {
/* Original test case reported in https://sqlite.org/forum/forumpost/bad532820c
CREATE TABLE v0 (c1);
CREATE INDEX i ON v0 (c1, c1=1);
SELECT 0 FROM v0 AS a1
WHERE (SELECT count((SELECT(sum(0) OVER(PARTITION BY(c1), (a1.c1=1) ))))
FROM v0
GROUP BY hex(0))
AND a1.c1=0;
} {}
finish_test