From 0990c415f65d2556a5e4122cbe5727d500411aeb Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Sun, 23 Feb 2020 17:34:45 +0000
Subject: [PATCH] Fix a problem with ALTER TABLE for views that have a nested
 FROM clause. Ticket [f50af3e8a565776b].

FossilOrigin-Name: c431b3fd8fd0f6a6974bba3e9366b0430ec003d570e7ce70ceefbcff5fe4b6fa
---
 manifest           | 14 +++++++-------
 manifest.uuid      |  2 +-
 src/select.c       |  2 +-
 test/altertab.test | 17 +++++++++++++++++
 4 files changed, 26 insertions(+), 9 deletions(-)

diff --git a/manifest b/manifest
index 8bec1d1c7e..f338ba88f8 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C In\sthe\sOP_Column\sopcode,\sif\sthe\scursor\sis\smarked\sNullRow\s(due\sto\sbeing\sthe\nright\stable\sof\sa\sLEFT\sJOIN\sthat\sdoes\snot\smatch)\sand\sthe\scursor\sis\sthe\stable\ncursor\sfor\san\sOR-optimization\swith\sa\scovering\sindex,\sthen\sdo\snot\ssubstitute\nthe\scovering\sindex\scursor,\ssince\sthe\scovering\sindex\scursor\sdoes\snot\shave\nthe\sNullRow\sflag\sset.\s\sTicket\s[aa4378693018aa99]
-D 2020-02-22T13:01:19.240
+C Fix\sa\sproblem\swith\sALTER\sTABLE\sfor\sviews\sthat\shave\sa\snested\sFROM\sclause.\nTicket\s[f50af3e8a565776b].
+D 2020-02-23T17:34:45.938
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -531,7 +531,7 @@ F src/printf.c 9be6945837c839ba57837b4bc3af349eba630920fa5532aa518816defe42a7d4
 F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
 F src/resolve.c 38e3a5636f5bdc92e3683e4cafbba6418c0aa15e0d89ca5b28bd0b621dbb80bf
 F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
-F src/select.c 59ba85dce4c0ffb88fcda66b0c6c94b9a15f0fc30a3c454261468bd7e9063627
+F src/select.c 466f57380528f1d7deeef87a3af09e0ad806fa2eef5e97384ec9376727fdd847
 F src/shell.c.in c2e20c43a44fb5588a6c27ce60589538fbf4794fd7686f5b2598eca22eaae1fa
 F src/sqlite.h.in 802957feeb249ede54f8dfe99b72aa19e70a0b7737969c46e625dc2f9f2d42b0
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
@@ -639,7 +639,7 @@ F test/altercol.test 1d6a6fe698b81e626baea4881f5717f9bc53d7d07f1cd23ee7ad1b931f1
 F test/alterlegacy.test 82022721ce0de29cedc9a7af63bc9fcc078b0ee000f8283b4b6ea9c3eab2f44b
 F test/altermalloc.test 167a47de41b5c638f5f5c6efb59784002b196fff70f98d9b4ed3cd74a3fb80c9
 F test/altermalloc2.test fa7b1c1139ea39b8dec407cf1feb032ca8e0076bd429574969b619175ad0174b
-F test/altertab.test bd61e5b73d495ec4707133db91b07f09d57e339d988de5ec5a76d34a2198e8f2
+F test/altertab.test 89735fee876427c3f25dc76d887295fbe3659a91bab92468de9f0e622d48bb57
 F test/altertab2.test b0d62f323ca5dab42b0bc028c52e310ebdd13e655e8fac070fe622bad7852c2b
 F test/altertab3.test 155b8dc225ce484454a7fb4c8ba745680b6fa0fc3e08919cbbc19f9309d128ff
 F test/amatch1.test b5ae7065f042b7f4c1c922933f4700add50cdb9f
@@ -1858,7 +1858,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 14d14eb537075c6ac77513b1e7305bed8bc01a9034dfb763fd96f76400f2b705
-R 1f345124b6aafeeb9e600617cf39817f
+P f02030b3403d67734bba471a91ad5bfdb03ddf6fdc3ef14808a04495e43b0470
+R 27f30806e168cf65f551539c0795adeb
 U drh
-Z 38c81c56b51d8e5ae42e4e25b041736c
+Z b1d396f928d83f91cde5e969c202f590
diff --git a/manifest.uuid b/manifest.uuid
index 83685737a8..fc3a50b794 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-f02030b3403d67734bba471a91ad5bfdb03ddf6fdc3ef14808a04495e43b0470
\ No newline at end of file
+c431b3fd8fd0f6a6974bba3e9366b0430ec003d570e7ce70ceefbcff5fe4b6fa
\ No newline at end of file
diff --git a/src/select.c b/src/select.c
index 0f38c806c4..231027b61d 100644
--- a/src/select.c
+++ b/src/select.c
@@ -5145,7 +5145,7 @@ static int selectExpander(Walker *pWalker, Select *p){
             pNew = sqlite3ExprListAppend(pParse, pNew, pExpr);
             sqlite3TokenInit(&sColname, zColname);
             sqlite3ExprListSetName(pParse, pNew, &sColname, 0);
-            if( pNew && (p->selFlags & SF_NestedFrom)!=0 ){
+            if( pNew && (p->selFlags & SF_NestedFrom)!=0 && !IN_RENAME_OBJECT ){
               struct ExprList_item *pX = &pNew->a[pNew->nExpr-1];
               sqlite3DbFree(db, pX->zEName);
               if( pSub ){
diff --git a/test/altertab.test b/test/altertab.test
index 7dcf8a5e0d..5123c5f296 100644
--- a/test/altertab.test
+++ b/test/altertab.test
@@ -613,4 +613,21 @@ do_execsql_test 18.2.2 {
   SELECT sql FROM sqlite_master;
 } {{CREATE TABLE t0 (c1 INTEGER, PRIMARY KEY(c1))}}
 
+# 2020-02-23 ticket f50af3e8a565776b
+reset_db
+do_execsql_test 19.100 {
+  CREATE TABLE t1(x);
+  CREATE VIEW t2 AS SELECT 1 FROM t1, (t1 AS a0, t1);
+  ALTER TABLE t1 RENAME TO t3;
+  SELECT sql FROM sqlite_master;
+} {{CREATE TABLE "t3"(x)} {CREATE VIEW t2 AS SELECT 1 FROM "t3", ("t3" AS a0, "t3")}}
+do_execsql_test 19.110 {
+  INSERT INTO t3(x) VALUES(123);
+  SELECT * FROM t2;
+} {1}
+do_execsql_test 19.120 {
+  INSERT INTO t3(x) VALUES('xyz');
+  SELECT * FROM t2;
+} {1 1 1 1 1 1 1 1}
+
 finish_test