New test case demonstrating the ability to invoke OP_NullRow on a cursor

that has never been opened.

FossilOrigin-Name: d173edc242f295f5812a58cad184695881d9b1b160cd5b25e303e22848e90ce1

manifest

@@ -1,5 +1,5 @@
-C Merge\sthe\sbtree\sbug-fix\sfrom\strunk.
-D 2022-04-18T16:23:01.233
+C New\stest\scase\sdemonstrating\sthe\sability\sto\sinvoke\sOP_NullRow\son\sa\scursor\nthat\shas\snever\sbeen\sopened.
+D 2022-04-18T18:01:38.190
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -1148,7 +1148,7 @@ F test/join5.test c4df54e2e204d7f1417bfbdd21ca324b4b07415c647595cc47798eacfddc96
 F test/join6.test f809c025fa253f9e150c0e9afd4cef8813257bceeb6f46e04041228c9403cc2c
 F test/join7.test 8e72de4b45e5e930d18c305c7efe86015fb2552731e4e03ea226353036b0dab0
 F test/join8.test 6ed7eed8993e060e5e9d07f6bcadf1bb634742a03b9824afbcfa193adf7f9965
-F test/join9.test f5db0954fe5aee36fbecb75a80c764d5f0a4b35335016c5829b0d2616039df6e
+F test/join9.test 37204222103dc6d04883d2b1f533d9e35b7112ed131c258dc550e132dba48107
 F test/journal1.test c7b768041b7f494471531e17abc2f4f5ebf9e5096984f43ed17c4eb80ba34497
 F test/journal2.test 9dac6b4ba0ca79c3b21446bbae993a462c2397c4
 F test/journal3.test 7c3cf23ffc77db06601c1fcfc9743de8441cb77db9d1aa931863d94f5ffa140e
@@ -1948,8 +1948,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P aab7665ce6c004df701a72aef1a5135f2c78f16c6ff728a00076afb66ba9d3a0 2de7f8cc7fe18f0828bb53f1fd11f5eb828faf4d6dfaf39693dff4f8926c1c7a
-R c2bad799ccc2e68c52faa7ef529226a2
+P a333c0b50c3af7cd818470a647d78c7c691ef15418ec7cffe80dd88405393069
+R 9645873f15ef6d0ee81aef92418cd2d4
 U drh
-Z af5a0bcb393fda3761d5ef89c60ee039
+Z 96b862d75b3a9bbbe11e25b2234325fb
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-a333c0b50c3af7cd818470a647d78c7c691ef15418ec7cffe80dd88405393069
+d173edc242f295f5812a58cad184695881d9b1b160cd5b25e303e22848e90ce1

test/join9.test

@@ -364,5 +364,19 @@ foreach {id schema} {
     8   -      dave   -       -   
     9   -      -      -       999 
   }
-}  
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.800 {
+    WITH t7(id,a) AS MATERIALIZED (SELECT * FROM t4 WHERE false)
+    SELECT *
+      FROM t7 
+           JOIN t7 AS t7b USING(id)
+           FULL JOIN t3 USING(id);
+  } {
+    2   -  -  two  
+    3   -  -  three
+    6   -  -  six  
+    7   -  -  seven
+  }
+}
 finish_test