Fix a problem causing incorrect code to be generated for IN constraints like "a IN (1, 2, 3)" where column "a" is a rowid column with an extra UNIQUE index created on it. Ticket [0eab1ac759].

FossilOrigin-Name: a92aee5520cfaf85ae896365a7e42bdd981f828d

manifest

@@ -1,5 +1,5 @@
-C Replace\sa\sfaulty\sassert()\swith\sa\stestcase()\sto\sassure\sthe\scondition\sis\ntested.
-D 2016-09-16T15:42:17.759
+C Fix\sa\sproblem\scausing\sincorrect\scode\sto\sbe\sgenerated\sfor\sIN\sconstraints\slike\s"a\sIN\s(1,\s2,\s3)"\swhere\scolumn\s"a"\sis\sa\srowid\scolumn\swith\san\sextra\sUNIQUE\sindex\screated\son\sit.\sTicket\s[0eab1ac759].
+D 2016-09-16T16:30:57.249
 F Makefile.in 6fd48ffcf7c2deea7499062d1f3747f986c19678
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc e1aa788e84f926e42239ee167c53f785bedacacd
@@ -469,7 +469,7 @@ F src/wal.h 6dd221ed384afdc204bc61e25c23ef7fd5a511f2
 F src/walker.c 2d2cc7fb0f320f7f415215d7247f3c584141ac09
 F src/where.c d0ca1b5e1c56249e7725cea66ce4e172c5845dec
 F src/whereInt.h 14dd243e13b81cbb0a66063d38b70f93a7d6e613
-F src/wherecode.c c23f9b26fbcdf3f1e3ff2bcd4377057ffc14e063
+F src/wherecode.c e412e09abad1eea213d85594cf46db9f877db56d
 F src/whereexpr.c e3db778ed205e982f31960896db71c50612ae009
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
@@ -831,7 +831,7 @@ F test/in.test 20c5529986998949908f889c8208b2cd894b2cc9
 F test/in2.test 5d4c61d17493c832f7d2d32bef785119e87bde75
 F test/in3.test 3cbf58c87f4052cee3a58b37b6389777505aa0c0
 F test/in4.test d2b38cba404bc4320f4fe1b595b3d163f212c068
-F test/in5.test acc710c12af118df5f8645eaba9479f5619eed81
+F test/in5.test 6c006e0bcd7351b69350ef566e65f244023489e9
 F test/incrblob.test c9b96afc292aeff43d6687bcb09b0280aa599822
 F test/incrblob2.test a5ce5ed1d0b01e2ed347245a21170372528af0a5
 F test/incrblob3.test d8d036fde015d4a159cd3cbae9d29003b37227a4
@@ -1525,7 +1525,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P e7653decdcee161d379ced40aa1b27246337b000
-R ba1360097229bdefefc2984ae83db820
-U drh
-Z 4ae8145ebc191fbb330e31aa85de1aa5
+P a49bc0a8244feb08b83e716d81c2a9512c184539
+R 6f0469103fd0ee7eefefaa24af917500
+U dan
+Z 752f0595c26528c23b738c8e2fc1f9ad

manifest.uuid

@@ -1 +1 @@
-a49bc0a8244feb08b83e716d81c2a9512c184539
+a92aee5520cfaf85ae896365a7e42bdd981f828d

src/wherecode.c

@@ -525,14 +525,13 @@ static int codeEqualityTerm(
       int iMap = 0;               /* Index in aiMap[] */
       pIn += i;
       for(i=iEq;i<pLoop->nLTerm; i++){
-        int iOut = iReg;
         if( pLoop->aLTerm[i]->pExpr==pX ){
+          int iOut = iReg + i - iEq;
           if( eType==IN_INDEX_ROWID ){
             testcase( nEq>1 );  /* Happens with a UNIQUE index on ROWID */
-            pIn->addrInTop = sqlite3VdbeAddOp2(v, OP_Rowid, iTab, iReg);
+            pIn->addrInTop = sqlite3VdbeAddOp2(v, OP_Rowid, iTab, iOut);
           }else{
             int iCol = aiMap ? aiMap[iMap++] : 0;
-            iOut = iReg + i - iEq;
             pIn->addrInTop = sqlite3VdbeAddOp3(v,OP_Column,iTab, iCol, iOut);
           }
           sqlite3VdbeAddOp1(v, OP_IsNull, iOut); VdbeCoverage(v);

test/in5.test

@@ -214,8 +214,27 @@ do_execsql_test 7.3.2 {
   SELECT a FROM y1 WHERE b IN (SELECT a FROM y2);
 } {two}
 
-finish_test
-
+#-------------------------------------------------------------------------
+# Tests to confirm that indexes on the rowid column do not confuse
+# the query planner. See ticket [0eab1ac7591f511d].
+#
+do_execsql_test 8.0 {
+  CREATE TABLE n1(a INTEGER PRIMARY KEY, b VARCHAR(500));
+  CREATE UNIQUE INDEX n1a ON n1(a);
+}
 
+do_execsql_test 8.1 {
+  SELECT count(*) FROM n1 WHERE a IN (1, 2, 3)
+} 0
+do_execsql_test 8.2 {
+  SELECT count(*) FROM n1 WHERE a IN (SELECT +a FROM n1)
+} 0
+do_execsql_test 8.3 {
+  INSERT INTO n1 VALUES(1, NULL), (2, NULL), (3, NULL);
+  SELECT count(*) FROM n1 WHERE a IN (1, 2, 3)
+} 3
+do_execsql_test 8.4 {
+  SELECT count(*) FROM n1 WHERE a IN (SELECT +a FROM n1)
+} 3
 
 finish_test