Fix an LSM problem caused by using the same cursor for equality and range

scans.

FossilOrigin-Name: f05bead371d41ca5beef1f82e4c920c90e2eb9cd9fd537a5c91973bf9bd4eedb

ext/lsm1/lsm-test/lsmtest1.c

@@ -274,6 +274,7 @@ static void doDataTest1(
   int rc = LSM_OK;
   Datasource *pData;
   TestDb *pDb;
+  int iToggle = 0;
 
   /* Start the test case, open a database and allocate the datasource. */
   pDb = testOpen(zSystem, 1, &rc);
@@ -287,8 +288,11 @@ static void doDataTest1(
     testWriteDatasourceRange(pDb, pData, i, p->nVerify, &rc);
     i += p->nVerify;
 
+    if( iToggle ) testBegin(pDb, 1, &rc);
     /* Check that the db content is correct. */
     testDbContents(pDb, pData, p->nRow, 0, i-1, p->nTest, p->bTestScan, &rc);
+    if( iToggle ) testCommit(pDb, 0, &rc);
+    iToggle = (iToggle+1)%2;
 
     if( bRecover ){
       testReopenRecover(&pDb, &rc);

ext/lsm1/lsm-test/lsmtest_tdb3.c

@@ -617,8 +617,12 @@ static int test_lsm_fetch(
 
   if( pKey==0 ) return LSM_OK;
 
-  rc = lsm_csr_open(pDb->db, &csr);
-  if( rc!=LSM_OK ) return rc;
+  if( pDb->pCsr==0 ){
+    rc = lsm_csr_open(pDb->db, &csr);
+    if( rc!=LSM_OK ) return rc;
+  }else{
+    csr = pDb->pCsr;
+  }
 
   rc = lsm_csr_seek(csr, pKey, nKey, LSM_SEEK_EQ);
   if( rc==LSM_OK ){
@@ -638,7 +642,9 @@ static int test_lsm_fetch(
       *pnVal = -1;
     }
   }
-  lsm_csr_close(csr);
+  if( pDb->pCsr==0 ){
+    lsm_csr_close(csr);
+  }
   return rc;
 }
 
@@ -652,10 +658,16 @@ static int test_lsm_scan(
 ){
   LsmDb *pDb = (LsmDb *)pTestDb;
   lsm_cursor *csr;
+  lsm_cursor *csr2 = 0;
   int rc;
 
-  rc = lsm_csr_open(pDb->db, &csr);
-  if( rc!=LSM_OK ) return rc;
+  if( pDb->pCsr==0 ){
+    rc = lsm_csr_open(pDb->db, &csr);
+    if( rc!=LSM_OK ) return rc;
+  }else{
+    rc = LSM_OK;
+    csr = pDb->pCsr;
+  }
 
   if( bReverse ){
     if( pLast ){
@@ -696,7 +708,9 @@ static int test_lsm_scan(
     }
   }
 
-  lsm_csr_close(csr);
+  if( pDb->pCsr==0 ){
+    lsm_csr_close(csr);
+  }
   return rc;
 }
 
@@ -762,6 +776,7 @@ static void xWorkHook(lsm_db *db, void *pArg){
 #define TEST_MT_MIN_CKPT -4
 #define TEST_MT_MAX_CKPT -5
 
+
 int test_lsm_config_str(
   LsmDb *pLsm,
   lsm_db *db, 

ext/lsm1/lsm_sorted.c

@@ -2868,7 +2868,7 @@ static int multiCursorEnd(MultiCursor *pCsr, int bLast){
   int rc = LSM_OK;
   int i;
 
-  pCsr->flags &= ~(CURSOR_NEXT_OK | CURSOR_PREV_OK);
+  pCsr->flags &= ~(CURSOR_NEXT_OK | CURSOR_PREV_OK | CURSOR_SEEK_EQ);
   pCsr->flags |= (bLast ? CURSOR_PREV_OK : CURSOR_NEXT_OK);
   pCsr->iFree = 0;
 

manifest

@@ -1,5 +1,5 @@
-C Add\sALWAYS()\smacros\son\sresults\sof\ssqlite3_aggregate_context()\scalls\sin\nxInverse()\simplements,\ssince\sthey\scan\snever\sfail.
-D 2018-07-07T19:47:21.666
+C Fix\san\sLSM\sproblem\scaused\sby\susing\sthe\ssame\scursor\sfor\sequality\sand\srange\nscans.
+D 2018-07-07T20:13:32.703
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in 0a3a6c81e6fcb969ff9106e882f0a08547014ba463cb6beca4c4efaecc924ee6
@@ -225,7 +225,7 @@ F ext/lsm1/Makefile 98b0a24b45e248283d6bea4b6cb3e58d7b394edd8e96a0ac28c5fa510481
 F ext/lsm1/Makefile.msc f8c878b467232226de288da320e1ac71c131f5ec91e08b21f502303347260013
 F ext/lsm1/lsm-test/README 87ea529d2abe615e856d4714bfe8bb185e6c2771b8612aa6298588b7b43e6f86
 F ext/lsm1/lsm-test/lsmtest.h cf58528ffe0cfe535e91b44584e2ec5fb1caacdabecef0d8dcf83bf83168bf28
-F ext/lsm1/lsm-test/lsmtest1.c 33158978327f800e82b6a47c09b86ace809f56a9ff10b0162273ec1186cc3153
+F ext/lsm1/lsm-test/lsmtest1.c ae6ba48a0851b39be69a7d0eb220bfb9521a526e926223d5014bd385df10abb3
 F ext/lsm1/lsm-test/lsmtest2.c 188b09aec776516aeedcfd13b9c6faf85ba16b3671a0897a2c740ee00a5dc4f8
 F ext/lsm1/lsm-test/lsmtest3.c 9ab87528a36dbf4a61d7c8ad954f5ee368c0878c127b84b942b2e2abe522de26
 F ext/lsm1/lsm-test/lsmtest4.c d258d6a245db5d8eaede096e2368d23f859c5e92c80ab9122463f708514fe10c
@@ -243,7 +243,7 @@ F ext/lsm1/lsm-test/lsmtest_mem.c 4e63c764345ab1df59d4f13a77980c6f3643798210b10d
 F ext/lsm1/lsm-test/lsmtest_tdb.c 618a8619183fda4f5540fcde15f9068293c5e3180e1a246e34409b0c148758b3
 F ext/lsm1/lsm-test/lsmtest_tdb.h 8733eee249b12956a9df8322994b43d19bd8c02ad2e8b0bb5164db4d6ccc1735
 F ext/lsm1/lsm-test/lsmtest_tdb2.cc 99ea7f2dd9c7536c8fb9bdd329e4cfeb76899f3ddf6f48bdd3926e016922b715
-F ext/lsm1/lsm-test/lsmtest_tdb3.c b4e46b1d2fec553fe4efb44e341b43abd20556fde610db0cfffdc2300b72defe
+F ext/lsm1/lsm-test/lsmtest_tdb3.c c38bb8994e7416e6b2be480e095f4f4cda582126204e632d165c4b1feefc5aea
 F ext/lsm1/lsm-test/lsmtest_tdb4.c 47e8bb5eba266472d690fb8264f1855ebdba0ae5a0e541e35fcda61ebf1d277f
 F ext/lsm1/lsm-test/lsmtest_util.c 241622db5a332a09c8e6e7606b617d288a37b557f7d3bce0bb97809f67cc2806
 F ext/lsm1/lsm-test/lsmtest_win32.c 0e0a224674c4d3170631c41b026b56c7e1672b151f5261e1b4cc19068641da2d
@@ -256,7 +256,7 @@ F ext/lsm1/lsm_main.c b5703f8042e71d3a2d65e671f6832e077e79e89e9975818f67f9699226
 F ext/lsm1/lsm_mem.c 4c51ea9fa285ee6e35301b33491642d071740a0a
 F ext/lsm1/lsm_mutex.c 378edf0a2b142b4f7640ee982df06d50b98788ea
 F ext/lsm1/lsm_shared.c 76adfc1ed9ffebaf92746dde4b370ccc48143ca8b05b563816eadd2aadf1c525
-F ext/lsm1/lsm_sorted.c df7b393d9e4b85e6ad07181c6434d58a69a9145ee925d89c3ee1d2a210adaf9a
+F ext/lsm1/lsm_sorted.c 1abed5e7bc0332bb33fc565249aa7d15e98b7510a4898d86237bc07e82e45d06
 F ext/lsm1/lsm_str.c 65e361b488c87b10bf3e5c0070b14ffc602cf84f094880bece77bbf6678bca82
 F ext/lsm1/lsm_tree.c 682679d7ef2b8b6f2fe77aeb532c8d29695bca671c220b0abac77069de5fb9fb
 F ext/lsm1/lsm_unix.c 57361bcf5b1a1a028f5d66571ee490e9064d2cfb145a2cc9e5ddade467bb551b
@@ -1745,7 +1745,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 4213889103fa37f3f11802aea81989522048a0752820603dd556f612128ddfee
-R b4bd6637a560cc2b671471c6eee21129
-U drh
-Z a050e55c29dd8997b8d0c52a34704773
+P fdef2a921d451c66ca535021d08af3ec1ab53283da2d2979378a799fd8731ef9
+R 9bf8d4422d287c0c0efb3b4bda1c617d
+U dan
+Z c81820453c426810f93bdde5e2c49fcf

manifest.uuid

@@ -1 +1 @@
-fdef2a921d451c66ca535021d08af3ec1ab53283da2d2979378a799fd8731ef9
+f05bead371d41ca5beef1f82e4c920c90e2eb9cd9fd537a5c91973bf9bd4eedb