-C Defer\sgenerating\sWHERE\sclause\sconstraints\sfor\sa\sRIGHT\sJOIN\suntil\safter\sthe\nON-clause\sprocessing\sfor\sthe\sRIGHT\sJOIN\shas\sdone\sits\sown\srow\selimination.\nThis\sfixes\sand\sincorrect\soutput\sfrom\ssome\sRIGHT\sJOINs\sthat\swas\sidentified\nby\s[forum:/forumpost/41cc3851d864c5e6|forum\spost\s41cc3851d864c5e6].
-D 2022-05-13T17:45:52.976
+C Walk\sback\sthe\soptimization\sfrom\scheck-in\s[cc458317bd77046c]\sthat\stries\sto\nreuse\sthe\ssame\sephemeral\scursor\sof\sa\slist\ssubquery\swhen\sthat\ssubquery\sis\nreused,\sas\sit\sdoes\snot\swork\sin\scases\swhere\sthe\slist\ssubquery\sis\sused\sboth\nfor\slookups\sand\sfor\sscans.
+D 2022-05-13T19:50:29.681
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
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F src/dbstat.c 861e08690fcb0f2ee1165eff0060ea8d4f3e2ea10f80dab7d32ad70443a6ff2d
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-F src/expr.c d73ac75456ac14b1147eecc8c30bf08a0cb91b7f97c62632222a52f6222a9aa9
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U drh
-Z 7f18b62d8d1b8431770b8960ee426eac
+Z c59d4810013018d66fb5815f061f58db
# Remove this line to create a well-formed Fossil manifest.
JOIN t1 ON (t3.e IS NOT DISTINCT FROM t2.c);
} {}
+# 2022-05-13 The idea of reusing subquery cursors does not
+# work, if the cursors are used both for scanning and lookups.
+#
+reset_db
+db null -
+do_execsql_test join8-9000 {
+ CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d REAL);
+ INSERT INTO t1 VALUES(1,'E','bb',NULL),(2,NULL,NULL,NULL);
+ SELECT * FROM t1 NATURAL RIGHT JOIN t1 AS t2 WHERE (a,b) IN (SELECT a+0, b FROM t1);
+} {1 E bb -}
+
finish_test