diff --git a/manifest b/manifest
index 79aa8f42ae..825488a2d0 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Further\srefinements\sto\sthe\ssqlite3_normalized_sql()\sinterface.\s\sTH3\snow\ngives\s100%\sMC/DC\son\sthat\sinterface.
-D 2018-12-10T20:01:40.741
+C Small\sperformance\simprovement\sin\sthe\ssqlite3_bind()\sfamily\sof\sinterfaces.
+D 2018-12-11T12:20:41.473
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in 68d0ba0f0b533d5bc84c78c13a6ce84ee81183a67014caa47a969e67f028fa1c
@@ -471,7 +471,7 @@ F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
 F src/insert.c f12f27eb606d601825be9a229a7390a8d64d40226697883f96de8e088d620055
 F src/legacy.c 134ab3e3fae00a0f67a5187981d6935b24b337bcf0f4b3e5c9fa5763da95bf4e
 F src/loadext.c e6f10875d52aca3b7e57ce1ec174aeafc9b6c00b43000cd30d791f9cb490b7a6
-F src/main.c 473d149b51d4f5376e3308e11d5bc07f7570cf596eacecd148c6f7ae63a649ce
+F src/main.c 008f45dd39cdc7fb9e7e1f61d75a5c97397f8e07427a8879be23e27747d5f948
 F src/malloc.c 07295435093ce354c6d9063ac05a2eeae28bd251d2e63c48b3d67c12c76f7e18
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de
@@ -581,7 +581,7 @@ F src/vacuum.c 3ffe64ecfc94b7528c5d7bdb1c3a19d72fec63f2aa846e3b90f8de5dbbddf5aa
 F src/vdbe.c 55bafc424748d9ed505ab2680736e51d1bb05c01e9885cbb3b287b51dc8b47ec
 F src/vdbe.h 8990d668a89890a33326b0a29b992c4014b72f3b6cdcd9ee0e190593c247f9b0
 F src/vdbeInt.h 73f5051923f3f29779bfc374c0c68e23b8e5e3792def2e33e51b427edb890abd
-F src/vdbeapi.c 43ccaa96e28ebe56a46616c300218e5073911eff618e9d0ab7526983cda939b1
+F src/vdbeapi.c d006df501bc7f39204a4a500dba54fcf5a3925fabe25f9a8853c79adb2897a6b
 F src/vdbeaux.c f00d9b32a250b829a3c00140255a1c37a6463d726bb87ed6bbb80a1ce76a56bd
 F src/vdbeblob.c f5c70f973ea3a9e915d1693278a5f890dc78594300cf4d54e64f2b0917c94191
 F src/vdbemem.c 7b3305bc4a5139f4536ac9b5f61da0f915e49d2e3fdfa87dfdfa9d7aba8bc1e9
@@ -1783,7 +1783,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 06e955e5d2b857b9ce94a73fb174b620c101bdb160842f9a0e958bdb48e8c987
-R 692e5dc4224a0726be01a748426768ab
+P c96bf6cca220e363b099455ce35195ce7e89d374a52dc787f56e7b11e587bced
+R 86dccf908eed64e76085197f6613cec4
 U drh
-Z 6406ae7cdd7eefde2a741c866c8156da
+Z df1a85b6e63863e8c0c59775b55fa8b0
diff --git a/manifest.uuid b/manifest.uuid
index 963e5257c1..707eb7f983 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-c96bf6cca220e363b099455ce35195ce7e89d374a52dc787f56e7b11e587bced
\ No newline at end of file
+1dc0c3df32572f09265fc73eeaa0748159e0e9523b9b2d6768b834a29c909968
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 627d24e0b1..efffc2b633 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2405,7 +2405,7 @@ const char *sqlite3_errmsg(sqlite3 *db){
     z = sqlite3ErrStr(SQLITE_NOMEM_BKPT);
   }else{
     testcase( db->pErr==0 );
-    z = (char*)sqlite3_value_text(db->pErr);
+    z = db->errCode ? (char*)sqlite3_value_text(db->pErr) : 0;
     assert( !db->mallocFailed );
     if( z==0 ){
       z = sqlite3ErrStr(db->errCode);
diff --git a/src/vdbeapi.c b/src/vdbeapi.c
index 91379a1469..c43646a89e 100644
--- a/src/vdbeapi.c
+++ b/src/vdbeapi.c
@@ -1286,7 +1286,7 @@ static int vdbeUnbind(Vdbe *p, int i){
   pVar = &p->aVar[i];
   sqlite3VdbeMemRelease(pVar);
   pVar->flags = MEM_Null;
-  sqlite3Error(p->db, SQLITE_OK);
+  p->db->errCode = SQLITE_OK;
 
   /* If the bit corresponding to this variable in Vdbe.expmask is set, then 
   ** binding a new value to this variable invalidates the current query plan.