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Enhance the codeEqualityTerm() routine inside the code generator so that it is

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able to reuse an IN operator that has an invariant subquery on its right-hand
side while coding the non-matched loop of a RIGHT JOIN.
dbsqlfuzz 19f1102a70cf966ab249de56d944fc20dbebcfcf

FossilOrigin-Name: 56dd3065469e49320b13af039471b3f0b85e6f7368cfd97b1cdc0cf8fa8e1956
This commit is contained in:
drh
2022-04-29 19:00:11 +00:00
parent 8e8e9de87e
commit 3d5665366f
4 changed files with 19 additions and 9 deletions
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10
test/join8.test
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@ -156,4 +156,14 @@ do_catchsql_test join8-5000 {
SELECT (SELECT c FROM sqlite_temp_schema FULL JOIN t2 ON d IN (1,2,3) ORDER BY d) AS x FROM t1;
} {0 {- -}}
# 2022-04-29 dbsqlfuzz 19f1102a70cf966ab249de56d944fc20dbebcfcf
#
reset_db
do_execsql_test join8-6000 {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d REAL);
INSERT INTO t1 VALUES(1,'A','aa',2.5);
SELECT * FROM t1 AS t2 NATURAL RIGHT JOIN t1 AS t3
WHERE (a,b) IN (SELECT rowid, b FROM t1);
} {1 A aa 2.5}
finish_test