diff --git a/ext/misc/json1.c b/ext/misc/json1.c
index 72ba33be0f..a8b9ed539d 100644
--- a/ext/misc/json1.c
+++ b/ext/misc/json1.c
@@ -21,7 +21,9 @@
 ** This implementation parses JSON text at 250 MB/s, so it is hard to see
 ** how JSONB might improve on that.)
 */
+#if !defined(_SQLITEINT_H_)
 #include "sqlite3ext.h"
+#endif
 SQLITE_EXTENSION_INIT1
 #include <assert.h>
 #include <string.h>
@@ -405,6 +407,20 @@ static void jsonRenderNode(
   }
 }
 
+/*
+** Return a JsonNode and all its descendents as a JSON string.
+*/
+static void jsonReturnJson(
+  JsonNode *pNode,            /* Node to return */
+  sqlite3_context *pCtx,      /* Return value for this function */
+  sqlite3_value **aReplace    /* Array of replacement values */
+){
+  JsonString s;
+  jsonInit(&s, pCtx);
+  jsonRenderNode(pNode, &s, aReplace);
+  jsonResult(&s);
+}
+
 /*
 ** Make the JsonNode the return value of the function.
 */
@@ -509,10 +525,7 @@ static void jsonReturn(
     }
     case JSON_ARRAY:
     case JSON_OBJECT: {
-      JsonString s;
-      jsonInit(&s, pCtx);
-      jsonRenderNode(pNode, &s, aReplace);
-      jsonResult(&s);
+      jsonReturnJson(pNode, pCtx, aReplace);
       break;
     }
   }
@@ -717,7 +730,13 @@ static int jsonParse(
     if( zJson[i] ) i = -1;
   }
   if( i<0 ){
-    if( pParse->oom && pCtx!=0 ) sqlite3_result_error_nomem(pCtx);
+    if( pCtx!=0 ){
+      if( pParse->oom ){
+        sqlite3_result_error_nomem(pCtx);
+      }else{
+        sqlite3_result_error(pCtx, "malformed JSON", -1);
+      }
+    }
     jsonParseReset(pParse);
     return 1;
   }
@@ -960,7 +979,7 @@ static void jsonTest1Func(
 ){
   JsonParse x;  /* The parse */
   if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
-  jsonReturn(x.aNode, ctx, 0);
+  jsonReturnJson(x.aNode, ctx, 0);
   jsonParseReset(&x);
 }
 
@@ -1033,42 +1052,19 @@ static void jsonArrayLengthFunc(
   }else{
     zPath = 0;
   }
-  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0]))==0 ){
-    if( x.nNode ){
-      JsonNode *pNode = x.aNode;
-      if( zPath ) pNode = jsonLookup(&x, 0, zPath, 0);
-      if( pNode->eType==JSON_ARRAY ){
-        assert( (pNode->jnFlags & JNODE_APPEND)==0 );
-        for(i=1; i<=pNode->n; n++){
-          i += jsonNodeSize(&pNode[i]);
-        }
+  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
+  if( x.nNode ){
+    JsonNode *pNode = x.aNode;
+    if( zPath ) pNode = jsonLookup(&x, 0, zPath, 0);
+    if( pNode->eType==JSON_ARRAY ){
+      assert( (pNode->jnFlags & JNODE_APPEND)==0 );
+      for(i=1; i<=pNode->n; n++){
+        i += jsonNodeSize(&pNode[i]);
       }
     }
-    jsonParseReset(&x);
   }
-  if( !x.oom ) sqlite3_result_int64(ctx, n);
-}
-
-/*
-** json_check(JSON)
-**
-** Check the JSON argument to verify that it is well-formed.  Return a
-** compacted version of the argument (with white-space removed) if the
-** argument is well-formed.  Through an error if the argument is not
-** correctly formatted JSON.
-*/
-static void jsonCheckFunc(
-  sqlite3_context *ctx,
-  int argc,
-  sqlite3_value **argv
-){
-  JsonParse x;          /* The parse */
-  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ){
-    sqlite3_result_error(ctx, "malformed JSON", -1);
-    return;
-  }
-  jsonReturn(x.aNode, ctx, argv);
   jsonParseReset(&x);
+  sqlite3_result_int64(ctx, n);
 }
 
 /*
@@ -1166,7 +1162,7 @@ static void jsonRemoveFunc(
       if( pNode ) pNode->jnFlags |= JNODE_REMOVE;
     }
     if( (x.aNode[0].jnFlags & JNODE_REMOVE)==0 ){
-      jsonReturn(x.aNode, ctx, 0);
+      jsonReturnJson(x.aNode, ctx, 0);
     }
   }
   jsonParseReset(&x);
@@ -1214,7 +1210,7 @@ static void jsonReplaceFunc(
     if( x.aNode[0].jnFlags & JNODE_REPLACE ){
       sqlite3_result_value(ctx, argv[x.aNode[0].iVal]);
     }else{
-      jsonReturn(x.aNode, ctx, argv);
+      jsonReturnJson(x.aNode, ctx, argv);
     }
   }
   jsonParseReset(&x);
@@ -1274,7 +1270,7 @@ static void jsonSetFunc(
     if( x.aNode[0].jnFlags & JNODE_REPLACE ){
       sqlite3_result_value(ctx, argv[x.aNode[0].iVal]);
     }else{
-      jsonReturn(x.aNode, ctx, argv);
+      jsonReturnJson(x.aNode, ctx, argv);
     }
   }
 jsonSetDone:
@@ -1328,7 +1324,7 @@ static void jsonValidFunc(
   JsonParse x;          /* The parse */
   int rc = 0;
 
-  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0]))==0 
+  if( jsonParse(&x, 0, (const char*)sqlite3_value_text(argv[0]))==0 
    && x.nNode>0
   ){
     rc = 1;
@@ -1802,7 +1798,6 @@ int sqlite3_json_init(
     { "json_array",          -1, 0,   jsonArrayFunc         },
     { "json_array_length",    1, 0,   jsonArrayLengthFunc   },
     { "json_array_length",    2, 0,   jsonArrayLengthFunc   },
-    { "json_check",           1, 0,   jsonCheckFunc         },
     { "json_extract",         2, 0,   jsonExtractFunc       },
     { "json_insert",         -1, 0,   jsonSetFunc           },
     { "json_object",         -1, 0,   jsonObjectFunc        },
diff --git a/manifest b/manifest
index f4ea3f942d..630423411b 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\scompiler\swarnings\sin\srbu\scode.
-D 2015-08-28T16:41:45.530
+C Back\sout\sthe\sjson_check()\sroutine.\s\sInstead,\sthrow\san\serror\sif\sthe\sinput\sto\na\sjson\sfunction\s(other\sthan\sjson_valid())\sis\snot\svalid\sJSON.
+D 2015-08-28T20:07:40.320
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in e2218eb228374422969de7b1680eda6864affcef
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -192,7 +192,7 @@ F ext/misc/eval.c f971962e92ebb8b0a4e6b62949463ee454d88fa2
 F ext/misc/fileio.c d4171c815d6543a9edef8308aab2951413cd8d0f
 F ext/misc/fuzzer.c 4c84635c71c26cfa7c2e5848cf49fe2d2cfcd767
 F ext/misc/ieee754.c b0362167289170627659e84173f5d2e8fee8566e
-F ext/misc/json1.c 0b2bf3f2c3786fd6873b5f9a89023912c28ac889
+F ext/misc/json1.c aa344845c2c211e8a7fd57ccd92901506dacdf5a
 F ext/misc/nextchar.c 35c8b8baacb96d92abbb34a83a997b797075b342
 F ext/misc/percentile.c bcbee3c061b884eccb80e21651daaae8e1e43c63
 F ext/misc/regexp.c af92cdaa5058fcec1451e49becc7ba44dba023dc
@@ -810,7 +810,7 @@ F test/journal3.test ff8af941f9e06161d3db1b46bb9f965ff0e7f307
 F test/jrnlmode.test 7864d59cf7f6e552b9b99ba0f38acd167edc10fa
 F test/jrnlmode2.test 81610545a4e6ed239ea8fa661891893385e23a1d
 F test/jrnlmode3.test 556b447a05be0e0963f4311e95ab1632b11c9eaa
-F test/json101.test 420fe3917c9a6a0fb7f967f1f641054509acd0e2
+F test/json101.test 5dfb181790c123123c8e7981d4d3c941b6cc8af4
 F test/keyword1.test 37ef6bba5d2ed5b07ecdd6810571de2956599dff
 F test/lastinsert.test 42e948fd6442f07d60acbd15d33fb86473e0ef63
 F test/laststmtchanges.test ae613f53819206b3222771828d024154d51db200
@@ -1380,7 +1380,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P a84cf4f5d326270a61faf4ff867260f2dd1e68a6
-R 25627e3633787096f1c6a6ac573b9337
-U dan
-Z 8fac2bb28cf0b676d514df6920f608e8
+P 0fdc36fe35ae2fc8e9688fe6c53437f4d47502d9
+R 72483a04f1004ed82fe324bdb4440aeb
+U drh
+Z 66ee5efb60acb350500ed2a1605628ef
diff --git a/manifest.uuid b/manifest.uuid
index 453c3b2f4d..b5b08b89f4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-0fdc36fe35ae2fc8e9688fe6c53437f4d47502d9
\ No newline at end of file
+dc9ce7b18cbe23d065317757234ef9fb8792da7a
\ No newline at end of file
diff --git a/test/json101.test b/test/json101.test
index 2b9cafa00f..752cd1b177 100644
--- a/test/json101.test
+++ b/test/json101.test
@@ -63,11 +63,4 @@ do_execsql_test json1-3.4 {
   SELECT json_type(json_set('{"a":1,"b":2}','$$.b','{"x":3,"y":4}'),'$.b');
 } {object}
 
-do_execsql_test json1-4.1 {
-  SELECT json_check('  [  1,   2]   ');
-} {[1,2]}
-do_catchsql_test json1-4.2 {
-  SELECT json_check('  [  1,   2    ');
-} {1 {malformed JSON}}
-
 finish_test