From: drh <>
Date: Wed, 4 May 2022 02:01:49 +0000 (+0000)
Subject: In the query planner, do not let tables commute across any outer join.
X-Git-Tag: version-3.39.0~170
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=367c146b09949a3500535e1f587782c7baa65c51;p=thirdparty%2Fsqlite.git

In the query planner, do not let tables commute across any outer join.

FossilOrigin-Name: 8cee5388232ade91ea627bb6857eb8937d7530b5ea519e0ae6da362c37c7ed35
---

diff --git a/manifest b/manifest
index 6833c4893b..68a0d988fb 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Typos\scleared\sfrom\sREADME.md
-D 2022-05-03T21:58:24.696
+C In\sthe\squery\splanner,\sdo\snot\slet\stables\scommute\sacross\sany\souter\sjoin.
+D 2022-05-04T02:01:49.881
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -640,7 +640,7 @@ F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 F src/wal.c b9df133a705093da8977da5eb202eaadb844839f1c7297c08d33471f5491843d
 F src/wal.h c3aa7825bfa2fe0d85bef2db94655f99870a285778baa36307c0a16da32b226a
 F src/walker.c f890a3298418d7cba3b69b8803594fdc484ea241206a8dfa99db6dd36f8cbb3b
-F src/where.c 43085b3a4ce2e56315fabb0b240a56e76667d9e03c79f287695bcae7b76152d5
+F src/where.c b0f0c4b38d80530ff5e88fb8978e67555cb6392c8cedfd9f80d4d4d8e4106336
 F src/whereInt.h 4db5a877a9d1f38b5c928c1c84297c07f30b9a3bc1f5f66214cf1a8ef90a0556
 F src/wherecode.c cd9da760d391a51013f9ab8bc8ca7ad67f3b96e4857efe0d1dd85f538b3494a6
 F src/whereexpr.c 174d4ad5be165c610c907abb779ef4a97974d22b84e1ce7898d2d9f6947249e5
@@ -1951,8 +1951,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 6eda9b1a7784cf6d58c8876551f67ab98e78a08e726a0579d4def5ba881985bb
-R 488c5ef0a2e2c65a8876ebd84535d64a
-U larrybr
-Z b08bed53df46d6042a3906cc46d3517d
+P be3a1879c865cff85d8b1f0cc7b95295019c28cce67c687692a3210eeea6e314
+R 0ad645b7afda1c7b5bfd909d3f6cbc01
+U drh
+Z c5be1cebf65efa58a4f8d67d25367727
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index d70921cc06..06b2a13f36 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-be3a1879c865cff85d8b1f0cc7b95295019c28cce67c687692a3210eeea6e314
\ No newline at end of file
+8cee5388232ade91ea627bb6857eb8937d7530b5ea519e0ae6da362c37c7ed35
\ No newline at end of file
diff --git a/src/where.c b/src/where.c
index 2750d93584..c6fa56cdbd 100644
--- a/src/where.c
+++ b/src/where.c
@@ -4144,9 +4144,7 @@ static int whereLoopAddAll(WhereLoopBuilder *pBuilder){
     if( (pItem->fg.jointype & (JT_OUTER|JT_CROSS))!=0 ){
       /* This condition is true when pItem is the FROM clause term on the
       ** right-hand-side of a OUTER or CROSS JOIN.  */
-      mPrereq = mPrior;
-    }else{
-      mPrereq = 0;
+      mPrereq |= mPrior;
     }
 #ifndef SQLITE_OMIT_VIRTUALTABLE
     if( IsVirtual(pItem->pTab) ){