From: drh <drh@noemail.net>
Date: Mon, 1 Oct 2012 17:44:05 +0000 (+0000)
Subject: Minor changes to the query planner for improved test coverage.
X-Git-Tag: version-3.7.15~103
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=04b85bc609a6b9fb45c9e15b2762f0527c71d604;p=thirdparty%2Fsqlite.git

Minor changes to the query planner for improved test coverage.

FossilOrigin-Name: c12044df322283c9deb0d7dacd8a699ac53f27b6
---

diff --git a/manifest b/manifest
index 8f4fbf72ad..069ed605a7 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Omit\sthe\ssqlite3GetReservedNoMutex()\sroutine\sin\sbuild\sconfigurations\swhere\nit\sis\snot\sused.
-D 2012-10-01T12:44:26.787
+C Minor\schanges\sto\sthe\squery\splanner\sfor\simproved\stest\scoverage.
+D 2012-10-01T17:44:05.444
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5f4f26109f9d80829122e0e09f9cda008fa065fb
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -249,7 +249,7 @@ F src/vtab.c d8020c0a0e8ccc490ca449d7e665311b6e9f3ba9
 F src/wal.c e1fe8f92a0ea0fef8faa87ec43a127a478589d22
 F src/wal.h 29c197540b19044e6cd73487017e5e47a1d3dac6
 F src/walker.c 3d75ba73de15e0f8cd0737643badbeb0e002f07b
-F src/where.c acc2ec5f6879721f332223da393777438ea5a606
+F src/where.c e676efbfa8d5fe04bf2e3955d83f88d699e6eecd
 F test/8_3_names.test 631ea964a3edb091cf73c3b540f6bcfdb36ce823
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
 F test/aggnested.test 0be144b453e0622a085fae8665c32f5676708e00
@@ -1018,7 +1018,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/win/sqlite.vsix 67d8a99aceb56384a81b3f30d6c71743146d2cc9
-P daebe3bd2d9bd7b6f876a8110cf5045eb3fee078
-R d91a487579faabb2d53225715f6d270e
+P f193dbb6b96b2f49dd0d6345802c9c006cd99e3c
+R cc743e0e8cc0407b063f795edee17263
 U drh
-Z ba2684210aeb6310a87308d43a7fd6e8
+Z 2fb8150c8641aac32ecd5d693f13df87
diff --git a/manifest.uuid b/manifest.uuid
index 7fb135f8f2..f781c3b765 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-f193dbb6b96b2f49dd0d6345802c9c006cd99e3c
\ No newline at end of file
+c12044df322283c9deb0d7dacd8a699ac53f27b6
\ No newline at end of file
diff --git a/src/where.c b/src/where.c
index 708fe7a1d8..b95e6bf6f6 100644
--- a/src/where.c
+++ b/src/where.c
@@ -1441,7 +1441,8 @@ static int indexIsUniqueNotNull(Index *pIdx, int nSkip){
   if( pIdx->onError==OE_None ) return 0;
   for(i=nSkip; i<pIdx->nColumn; i++){
     int j = pIdx->aiColumn[i];
-    if( j>=0 && pTab->aCol[j].notNull==0 ) return 0;
+    assert( j>=0 && j<pTab->nCol );
+    if( pTab->aCol[j].notNull==0 ) return 0;
   }
   return 1;
 }
@@ -1505,7 +1506,8 @@ static int isDistinctIndex(
   Bitmask mask = 0;               /* Mask of unaccounted for pDistinct exprs */
   int i;                          /* Iterator variable */
 
-  if( pIdx->zName==0 || pDistinct==0 || pDistinct->nExpr>=BMS ) return 0;
+  assert( pDistinct!=0 );
+  if( pIdx->zName==0 || pDistinct->nExpr>=BMS ) return 0;
   testcase( pDistinct->nExpr==BMS-1 );
 
   /* Loop through all the expressions in the distinct list. If any of them
@@ -3097,7 +3099,7 @@ static void bestBtreeIndex(WhereBestIdx *p){
     **    external sort (i.e. scanning the index being evaluated will not 
     **    correctly order records).
     **
-    **  bDistinct:
+    **  bDist:
     **    Boolean. True if there is a DISTINCT clause that will require an 
     **    external btree.
     **