Update sqlite3

SquiLu-ext/sqlite3.c

@@ -400,7 +400,7 @@ extern "C" {
 */
 #define SQLITE_VERSION        "3.19.0"
 #define SQLITE_VERSION_NUMBER 3019000
-#define SQLITE_SOURCE_ID      "2017-04-11 01:30:42 a47efb7c8520a01110ce3b3531ebe1bab6720780d67fba001992c44c5807d332"
+#define SQLITE_SOURCE_ID      "2017-04-12 17:50:12 c847543f8bb1376fef52bca72b4191162a32eb7e6c5f0cd1aa0ab116b3183396"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers
@@ -69993,7 +69993,7 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPre
     pMem->szMalloc = sqlite3DbMallocSize(pMem->db, pMem->zMalloc);
   }
 
-  if( bPreserve && pMem->z && pMem->z!=pMem->zMalloc ){
+  if( bPreserve && pMem->z && ALWAYS(pMem->z!=pMem->zMalloc) ){
     memcpy(pMem->zMalloc, pMem->z, pMem->n);
   }
   if( (pMem->flags&MEM_Dyn)!=0 ){
@@ -91622,7 +91622,7 @@ SQLITE_PRIVATE char sqlite3ExprAffinity(Expr *pExpr){
     return sqlite3AffinityType(pExpr->u.zToken, 0);
   }
 #endif
-  if( op==TK_AGG_COLUMN || op==TK_COLUMN ){
+  if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->pTab ){
     return sqlite3TableColumnAffinity(pExpr->pTab, pExpr->iColumn);
   }
   if( op==TK_SELECT_COLUMN ){
@@ -109185,8 +109185,16 @@ SQLITE_PRIVATE u32 sqlite3FkOldmask(
 ** UPDATE statement modifies the rowid fields of the table.
 **
 ** If any foreign key processing will be required, this function returns
-** true. If there is no foreign key related processing, this function 
-** returns false.
+** non-zero. If there is no foreign key related processing, this function 
+** returns zero.
+**
+** For an UPDATE, this function returns 2 if:
+**
+**   * There are any FKs for which pTab is the child and the parent table, or
+**   * the UPDATE modifies one or more parent keys for which the action is
+**     not "NO ACTION" (i.e. is CASCADE, SET DEFAULT or SET NULL).
+**
+** Or, assuming some other foreign key processing is required, 1.
 */
 SQLITE_PRIVATE int sqlite3FkRequired(
   Parse *pParse,                  /* Parse context */
@@ -109194,12 +109202,13 @@ SQLITE_PRIVATE int sqlite3FkRequired(
   int *aChange,                   /* Non-NULL for UPDATE operations */
   int chngRowid                   /* True for UPDATE that affects rowid */
 ){
+  int eRet = 0;
   if( pParse->db->flags&SQLITE_ForeignKeys ){
     if( !aChange ){
       /* A DELETE operation. Foreign key processing is required if the 
       ** table in question is either the child or parent table for any 
       ** foreign key constraint.  */
-      return (sqlite3FkReferences(pTab) || pTab->pFKey);
+      eRet = (sqlite3FkReferences(pTab) || pTab->pFKey);
     }else{
       /* This is an UPDATE. Foreign key processing is only required if the
       ** operation modifies one or more child or parent key columns. */
@@ -109207,16 +109216,22 @@ SQLITE_PRIVATE int sqlite3FkRequired(
 
       /* Check if any child key columns are being modified. */
       for(p=pTab->pFKey; p; p=p->pNextFrom){
-        if( fkChildIsModified(pTab, p, aChange, chngRowid) ) return 1;
+        if( 0==sqlite3_stricmp(pTab->zName, p->zTo) ) return 2;
+        if( fkChildIsModified(pTab, p, aChange, chngRowid) ){
+          eRet = 1;
+        }
       }
 
       /* Check if any parent key columns are being modified. */
       for(p=sqlite3FkReferences(pTab); p; p=p->pNextTo){
-        if( fkParentIsModified(pTab, p, aChange, chngRowid) ) return 1;
+        if( fkParentIsModified(pTab, p, aChange, chngRowid) ){
+          if( p->aAction[1]!=OE_None ) return 2;
+          eRet = 1;
+        }
       }
     }
   }
-  return 0;
+  return eRet;
 }
 
 /*
@@ -117331,14 +117346,13 @@ SQLITE_PRIVATE Select *sqlite3SelectNew(
 ){
   Select *pNew;
   Select standin;
-  sqlite3 *db = pParse->db;
-  pNew = sqlite3DbMallocRawNN(db, sizeof(*pNew) );
+  pNew = sqlite3DbMallocRawNN(pParse->db, sizeof(*pNew) );
   if( pNew==0 ){
-    assert( db->mallocFailed );
+    assert( pParse->db->mallocFailed );
     pNew = &standin;
   }
   if( pEList==0 ){
-    pEList = sqlite3ExprListAppend(pParse, 0, sqlite3Expr(db,TK_ASTERISK,0));
+    pEList = sqlite3ExprListAppend(pParse, 0, sqlite3Expr(pParse->db,TK_ASTERISK,0));
   }
   pNew->pEList = pEList;
   pNew->op = TK_SELECT;
@@ -117351,7 +117365,7 @@ SQLITE_PRIVATE Select *sqlite3SelectNew(
   pNew->addrOpenEphm[0] = -1;
   pNew->addrOpenEphm[1] = -1;
   pNew->nSelectRow = 0;
-  if( pSrc==0 ) pSrc = sqlite3DbMallocZero(db, sizeof(*pSrc));
+  if( pSrc==0 ) pSrc = sqlite3DbMallocZero(pParse->db, sizeof(*pSrc));
   pNew->pSrc = pSrc;
   pNew->pWhere = pWhere;
   pNew->pGroupBy = pGroupBy;
@@ -117362,9 +117376,9 @@ SQLITE_PRIVATE Select *sqlite3SelectNew(
   pNew->pLimit = pLimit;
   pNew->pOffset = pOffset;
   pNew->pWith = 0;
-  assert( pOffset==0 || pLimit!=0 || pParse->nErr>0 || db->mallocFailed!=0 );
-  if( db->mallocFailed ) {
-    clearSelect(db, pNew, pNew!=&standin);
+  assert( pOffset==0 || pLimit!=0 || pParse->nErr>0 || pParse->db->mallocFailed!=0 );
+  if( pParse->db->mallocFailed ) {
+    clearSelect(pParse->db, pNew, pNew!=&standin);
     pNew = 0;
   }else{
     assert( pNew->pSrc!=0 || pParse->nErr>0 );
@@ -124560,7 +124574,7 @@ SQLITE_PRIVATE void sqlite3Update(
   */
   for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
     int reg;
-    if( chngKey || hasFK || pIdx->pPartIdxWhere || pIdx==pPk ){
+    if( chngKey || hasFK>1 || pIdx->pPartIdxWhere || pIdx==pPk ){
       reg = ++pParse->nMem;
       pParse->nMem += pIdx->nColumn;
     }else{
@@ -124915,7 +124929,7 @@ SQLITE_PRIVATE void sqlite3Update(
     assert( regNew==regNewRowid+1 );
 #ifdef SQLITE_ENABLE_PREUPDATE_HOOK
     sqlite3VdbeAddOp3(v, OP_Delete, iDataCur,
-        OPFLAG_ISUPDATE | ((hasFK || chngKey) ? 0 : OPFLAG_ISNOOP),
+        OPFLAG_ISUPDATE | ((hasFK>1 || chngKey) ? 0 : OPFLAG_ISNOOP),
         regNewRowid
     );
     if( eOnePass==ONEPASS_MULTI ){
@@ -124926,7 +124940,7 @@ SQLITE_PRIVATE void sqlite3Update(
       sqlite3VdbeAppendP4(v, pTab, P4_TABLE);
     }
 #else
-    if( hasFK || chngKey ){
+    if( hasFK>1 || chngKey ){
       sqlite3VdbeAddOp2(v, OP_Delete, iDataCur, 0);
     }
 #endif
@@ -130270,8 +130284,8 @@ static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){
 ** Expression pExpr is one operand of a comparison operator that might
 ** be useful for indexing.  This routine checks to see if pExpr appears
 ** in any index.  Return TRUE (1) if pExpr is an indexed term and return
-** FALSE (0) if not.  If TRUE is returned, also set *piCur to the cursor
-** number of the table that is indexed and *piColumn to the column number
+** FALSE (0) if not.  If TRUE is returned, also set aiCurCol[0] to the cursor
+** number of the table that is indexed and aiCurCol[1] to the column number
 ** of the column that is indexed, or XN_EXPR (-2) if an expression is being
 ** indexed.
 **
@@ -130279,18 +130293,37 @@ static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){
 ** true even if that particular column is not indexed, because the column
 ** might be added to an automatic index later.
 */
-static int exprMightBeIndexed(
+static SQLITE_NOINLINE int exprMightBeIndexed2(
   SrcList *pFrom,        /* The FROM clause */
-  int op,                /* The specific comparison operator */
   Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */
-  Expr *pExpr,           /* An operand of a comparison operator */
-  int *piCur,            /* Write the referenced table cursor number here */
-  int *piColumn          /* Write the referenced table column number here */
+  int *aiCurCol,         /* Write the referenced table cursor and column here */
+  Expr *pExpr            /* An operand of a comparison operator */
 ){
   Index *pIdx;
   int i;
   int iCur;
-
+  for(i=0; mPrereq>1; i++, mPrereq>>=1){}
+  iCur = pFrom->a[i].iCursor;
+  for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){
+    if( pIdx->aColExpr==0 ) continue;
+    for(i=0; i<pIdx->nKeyCol; i++){
+      if( pIdx->aiColumn[i]!=XN_EXPR ) continue;
+      if( sqlite3ExprCompareSkip(pExpr, pIdx->aColExpr->a[i].pExpr, iCur)==0 ){
+        aiCurCol[0] = iCur;
+        aiCurCol[1] = XN_EXPR;
+        return 1;
+      }
+    }
+  }
+  return 0;
+}
+static int exprMightBeIndexed(
+  SrcList *pFrom,        /* The FROM clause */
+  Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */
+  int *aiCurCol,         /* Write the referenced table cursor & column here */
+  Expr *pExpr,           /* An operand of a comparison operator */
+  int op                 /* The specific comparison operator */
+){
   /* If this expression is a vector to the left or right of a 
   ** inequality constraint (>, <, >= or <=), perform the processing 
   ** on the first element of the vector.  */
@@ -130302,26 +130335,13 @@ static int exprMightBeIndexed(
   }
 
   if( pExpr->op==TK_COLUMN ){
-    *piCur = pExpr->iTable;
-    *piColumn = pExpr->iColumn;
+    aiCurCol[0] = pExpr->iTable;
+    aiCurCol[1] = pExpr->iColumn;
     return 1;
   }
   if( mPrereq==0 ) return 0;                 /* No table references */
   if( (mPrereq&(mPrereq-1))!=0 ) return 0;   /* Refs more than one table */
-  for(i=0; mPrereq>1; i++, mPrereq>>=1){}
-  iCur = pFrom->a[i].iCursor;
-  for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    if( pIdx->aColExpr==0 ) continue;
-    for(i=0; i<pIdx->nKeyCol; i++){
-      if( pIdx->aiColumn[i]!=XN_EXPR ) continue;
-      if( sqlite3ExprCompareSkip(pExpr, pIdx->aColExpr->a[i].pExpr, iCur)==0 ){
-        *piCur = iCur;
-        *piColumn = XN_EXPR;
-        return 1;
-      }
-    }
-  }
-  return 0;
+  return exprMightBeIndexed2(pFrom,mPrereq,aiCurCol,pExpr);
 }
 
 /*
@@ -130401,7 +130421,7 @@ static void exprAnalyze(
   pTerm->iParent = -1;
   pTerm->eOperator = 0;
   if( allowedOp(op) ){
-    int iCur, iColumn;
+    int aiCurCol[2];
     Expr *pLeft = sqlite3ExprSkipCollate(pExpr->pLeft);
     Expr *pRight = sqlite3ExprSkipCollate(pExpr->pRight);
     u16 opMask = (pTerm->prereqRight & prereqLeft)==0 ? WO_ALL : WO_EQUIV;
@@ -130412,14 +130432,14 @@ static void exprAnalyze(
       pLeft = pLeft->x.pList->a[pTerm->iField-1].pExpr;
     }
 
-    if( exprMightBeIndexed(pSrc, op, prereqLeft, pLeft, &iCur, &iColumn) ){
-      pTerm->leftCursor = iCur;
-      pTerm->u.leftColumn = iColumn;
+    if( exprMightBeIndexed(pSrc, prereqLeft, aiCurCol, pLeft, op) ){
+      pTerm->leftCursor = aiCurCol[0];
+      pTerm->u.leftColumn = aiCurCol[1];
       pTerm->eOperator = operatorMask(op) & opMask;
     }
     if( op==TK_IS ) pTerm->wtFlags |= TERM_IS;
     if( pRight 
-     && exprMightBeIndexed(pSrc, op, pTerm->prereqRight, pRight, &iCur,&iColumn)
+     && exprMightBeIndexed(pSrc, pTerm->prereqRight, aiCurCol, pRight, op)
     ){
       WhereTerm *pNew;
       Expr *pDup;
@@ -130449,8 +130469,8 @@ static void exprAnalyze(
         pNew = pTerm;
       }
       exprCommute(pParse, pDup);
-      pNew->leftCursor = iCur;
-      pNew->u.leftColumn = iColumn;
+      pNew->leftCursor = aiCurCol[0];
+      pNew->u.leftColumn = aiCurCol[1];
       testcase( (prereqLeft | extraRight) != prereqLeft );
       pNew->prereqRight = prereqLeft | extraRight;
       pNew->prereqAll = prereqAll;
@@ -182009,6 +182029,7 @@ static const char jsonIsSpace[] = {
   ** but the definitions need to be repeated for separate compilation. */
   typedef sqlite3_uint64 u64;
   typedef unsigned int u32;
+  typedef unsigned short int u16;
   typedef unsigned char u8;
 #endif
 
@@ -182088,8 +182109,18 @@ struct JsonParse {
   u32 *aUp;          /* Index of parent of each node */
   u8 oom;            /* Set to true if out of memory */
   u8 nErr;           /* Number of errors seen */
+  u16 iDepth;        /* Nesting depth */
 };
 
+/*
+** Maximum nesting depth of JSON for this implementation.
+**
+** This limit is needed to avoid a stack overflow in the recursive
+** descent parser.  A depth of 2000 is far deeper than any sane JSON
+** should go.
+*/
+#define JSON_MAX_DEPTH  2000
+
 /**************************************************************************
 ** Utility routines for dealing with JsonString objects
 **************************************************************************/
@@ -182654,8 +182685,10 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
     if( iThis<0 ) return -1;
     for(j=i+1;;j++){
       while( safe_isspace(z[j]) ){ j++; }
+      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
       x = jsonParseValue(pParse, j);
       if( x<0 ){
+        pParse->iDepth--;
         if( x==(-2) && pParse->nNode==(u32)iThis+1 ) return j+1;
         return -1;
       }
@@ -182668,6 +182701,7 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
       if( z[j]!=':' ) return -1;
       j++;
       x = jsonParseValue(pParse, j);
+      pParse->iDepth--;
       if( x<0 ) return -1;
       j = x;
       while( safe_isspace(z[j]) ){ j++; }
@@ -182684,7 +182718,9 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
     if( iThis<0 ) return -1;
     for(j=i+1;;j++){
       while( safe_isspace(z[j]) ){ j++; }
+      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
       x = jsonParseValue(pParse, j);
+      pParse->iDepth--;
       if( x<0 ){
         if( x==(-3) && pParse->nNode==(u32)iThis+1 ) return j+1;
         return -1;
@@ -182804,6 +182840,7 @@ static int jsonParse(
   i = jsonParseValue(pParse, 0);
   if( pParse->oom ) i = -1;
   if( i>0 ){
+    assert( pParse->iDepth==0 );
     while( safe_isspace(zJson[i]) ) i++;
     if( zJson[i] ) i = -1;
   }
@@ -185605,7 +185642,7 @@ static void sqlite3Fts5ParseNearsetFree(Fts5ExprNearset*);
 static void sqlite3Fts5ParseNodeFree(Fts5ExprNode*);
 
 static void sqlite3Fts5ParseSetDistance(Fts5Parse*, Fts5ExprNearset*, Fts5Token*);
-static void sqlite3Fts5ParseSetColset(Fts5Parse*, Fts5ExprNearset*, Fts5Colset*);
+static void sqlite3Fts5ParseSetColset(Fts5Parse*, Fts5ExprNode*, Fts5Colset*);
 static Fts5Colset *sqlite3Fts5ParseColsetInvert(Fts5Parse*, Fts5Colset*);
 static void sqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p);
 static void sqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token*);
@@ -185662,12 +185699,12 @@ static int sqlite3Fts5UnicodeFold(int c, int bRemoveDiacritic);
 #define FTS5_NOT                              3
 #define FTS5_TERM                             4
 #define FTS5_COLON                            5
-#define FTS5_LP                               6
-#define FTS5_RP                               7
-#define FTS5_MINUS                            8
-#define FTS5_LCP                              9
-#define FTS5_RCP                             10
-#define FTS5_STRING                          11
+#define FTS5_MINUS                            6
+#define FTS5_LCP                              7
+#define FTS5_RCP                              8
+#define FTS5_STRING                           9
+#define FTS5_LP                              10
+#define FTS5_RP                              11
 #define FTS5_COMMA                           12
 #define FTS5_PLUS                            13
 #define FTS5_STAR                            14
@@ -185803,16 +185840,16 @@ typedef union {
 #define sqlite3Fts5ParserARG_PDECL ,Fts5Parse *pParse
 #define sqlite3Fts5ParserARG_FETCH Fts5Parse *pParse = fts5yypParser->pParse
 #define sqlite3Fts5ParserARG_STORE fts5yypParser->pParse = pParse
-#define fts5YYNSTATE             29
-#define fts5YYNRULE              26
-#define fts5YY_MAX_SHIFT         28
-#define fts5YY_MIN_SHIFTREDUCE   45
-#define fts5YY_MAX_SHIFTREDUCE   70
-#define fts5YY_MIN_REDUCE        71
-#define fts5YY_MAX_REDUCE        96
-#define fts5YY_ERROR_ACTION      97
-#define fts5YY_ACCEPT_ACTION     98
-#define fts5YY_NO_ACTION         99
+#define fts5YYNSTATE             33
+#define fts5YYNRULE              27
+#define fts5YY_MAX_SHIFT         32
+#define fts5YY_MIN_SHIFTREDUCE   50
+#define fts5YY_MAX_SHIFTREDUCE   76
+#define fts5YY_MIN_REDUCE        77
+#define fts5YY_MAX_REDUCE        103
+#define fts5YY_ERROR_ACTION      104
+#define fts5YY_ACCEPT_ACTION     105
+#define fts5YY_NO_ACTION         106
 /************* End control #defines *******************************************/
 
 /* Define the fts5yytestcase() macro to be a no-op if is not already defined
@@ -185884,50 +185921,54 @@ typedef union {
 **  fts5yy_default[]       Default action for each state.
 **
 *********** Begin parsing tables **********************************************/
-#define fts5YY_ACTTAB_COUNT (85)
+#define fts5YY_ACTTAB_COUNT (98)
 static const fts5YYACTIONTYPE fts5yy_action[] = {
- /*     0 */    98,   16,   51,    5,   53,   27,   83,    7,   26,   15,
- /*    10 */    51,    5,   53,   27,   13,   69,   26,   48,   51,    5,
- /*    20 */    53,   27,   19,   11,   26,    9,   20,   51,    5,   53,
- /*    30 */    27,   13,   22,   26,   28,   51,    5,   53,   27,   68,
- /*    40 */     1,   26,   19,   11,   17,    9,   52,   10,   53,   27,
- /*    50 */    23,   24,   26,   54,    3,    4,    2,   26,    6,   21,
- /*    60 */    49,   71,    3,    4,    2,    7,   56,   59,   55,   59,
- /*    70 */     4,    2,   12,   69,   58,   60,   18,   67,   62,   69,
- /*    80 */    25,   66,    8,   14,    2,
+ /*     0 */   105,   19,   63,    6,   26,   66,   65,   24,   24,   17,
+ /*    10 */    63,    6,   26,   16,   65,   54,   24,   18,   63,    6,
+ /*    20 */    26,   10,   65,   12,   24,   75,   59,   63,    6,   26,
+ /*    30 */    13,   65,   75,   24,   20,   63,    6,   26,   74,   65,
+ /*    40 */    56,   24,   27,   63,    6,   26,   73,   65,   21,   24,
+ /*    50 */    23,   15,   30,   11,    1,   64,   22,   25,    9,   65,
+ /*    60 */     7,   24,    3,    4,    5,    3,    4,    5,    3,   77,
+ /*    70 */     4,    5,    3,   61,   23,   15,   60,   11,   80,   12,
+ /*    80 */     2,   13,   68,   10,   29,   52,   55,   75,   31,   32,
+ /*    90 */     8,   28,    5,    3,   51,   55,   72,   14,
 };
 static const fts5YYCODETYPE fts5yy_lookahead[] = {
- /*     0 */    16,   17,   18,   19,   20,   21,    5,    6,   24,   17,
- /*    10 */    18,   19,   20,   21,   11,   14,   24,   17,   18,   19,
- /*    20 */    20,   21,    8,    9,   24,   11,   17,   18,   19,   20,
- /*    30 */    21,   11,   12,   24,   17,   18,   19,   20,   21,   26,
- /*    40 */     6,   24,    8,    9,   22,   11,   18,   11,   20,   21,
- /*    50 */    24,   25,   24,   20,    1,    2,    3,   24,   23,   24,
- /*    60 */     7,    0,    1,    2,    3,    6,   10,   11,   10,   11,
- /*    70 */     2,    3,    9,   14,   11,   11,   22,   26,    7,   14,
- /*    80 */    13,   11,    5,   11,    3,
+ /*     0 */    16,   17,   18,   19,   20,   22,   22,   24,   24,   17,
+ /*    10 */    18,   19,   20,    7,   22,    9,   24,   17,   18,   19,
+ /*    20 */    20,   10,   22,    9,   24,   14,   17,   18,   19,   20,
+ /*    30 */     9,   22,   14,   24,   17,   18,   19,   20,   26,   22,
+ /*    40 */     9,   24,   17,   18,   19,   20,   26,   22,   21,   24,
+ /*    50 */     6,    7,   13,    9,   10,   18,   21,   20,    5,   22,
+ /*    60 */     5,   24,    3,    1,    2,    3,    1,    2,    3,    0,
+ /*    70 */     1,    2,    3,   11,    6,    7,   11,    9,    5,    9,
+ /*    80 */    10,    9,   11,   10,   12,    8,    9,   14,   24,   25,
+ /*    90 */    23,   24,    2,    3,    8,    9,    9,    9,
 };
-#define fts5YY_SHIFT_USE_DFLT (85)
-#define fts5YY_SHIFT_COUNT    (28)
+#define fts5YY_SHIFT_USE_DFLT (98)
+#define fts5YY_SHIFT_COUNT    (32)
 #define fts5YY_SHIFT_MIN      (0)
-#define fts5YY_SHIFT_MAX      (81)
+#define fts5YY_SHIFT_MAX      (90)
 static const unsigned char fts5yy_shift_ofst[] = {
- /*     0 */    34,   34,   34,   34,   34,   14,   20,    3,   36,    1,
- /*    10 */    59,   64,   64,   65,   65,   53,   61,   56,   58,   63,
- /*    20 */    68,   67,   70,   67,   71,   72,   67,   77,   81,
+ /*     0 */    44,   44,   44,   44,   44,   44,   68,   70,   72,   14,
+ /*    10 */    21,   73,   11,   18,   18,   31,   31,   62,   65,   69,
+ /*    20 */    90,   77,   86,    6,   39,   53,   55,   59,   39,   87,
+ /*    30 */    88,   39,   71,
 };
-#define fts5YY_REDUCE_USE_DFLT (-17)
-#define fts5YY_REDUCE_COUNT (14)
-#define fts5YY_REDUCE_MIN   (-16)
-#define fts5YY_REDUCE_MAX   (54)
+#define fts5YY_REDUCE_USE_DFLT (-18)
+#define fts5YY_REDUCE_COUNT (16)
+#define fts5YY_REDUCE_MIN   (-17)
+#define fts5YY_REDUCE_MAX   (67)
 static const signed char fts5yy_reduce_ofst[] = {
- /*     0 */   -16,   -8,    0,    9,   17,   28,   26,   35,   33,   13,
- /*    10 */    13,   22,   54,   13,   51,
+ /*     0 */   -16,   -8,    0,    9,   17,   25,   37,  -17,   64,  -17,
+ /*    10 */    67,   12,   12,   12,   20,   27,   35,
 };
 static const fts5YYACTIONTYPE fts5yy_default[] = {
- /*     0 */    97,   97,   97,   97,   97,   76,   91,   97,   97,   96,
- /*    10 */    96,   97,   97,   96,   96,   97,   97,   97,   97,   97,
- /*    20 */    73,   89,   97,   90,   97,   97,   87,   97,   72,
+ /*     0 */   104,  104,  104,  104,  104,  104,   89,  104,   98,  104,
+ /*    10 */   104,  103,  103,  103,  103,  104,  104,  104,  104,  104,
+ /*    20 */    85,  104,  104,  104,   94,  104,  104,   84,   96,  104,
+ /*    30 */   104,   97,  104,
 };
 /********** End of lemon-generated parsing tables *****************************/
 
@@ -186033,11 +186074,11 @@ static void sqlite3Fts5ParserTrace(FILE *TraceFILE, char *zTracePrompt){
 ** are required.  The following table supplies these names */
 static const char *const fts5yyTokenName[] = { 
   "$",             "OR",            "AND",           "NOT",         
-  "TERM",          "COLON",         "LP",            "RP",          
-  "MINUS",         "LCP",           "RCP",           "STRING",      
+  "TERM",          "COLON",         "MINUS",         "LCP",         
+  "RCP",           "STRING",        "LP",            "RP",          
   "COMMA",         "PLUS",          "STAR",          "error",       
   "input",         "expr",          "cnearset",      "exprlist",    
-  "nearset",       "colset",        "colsetlist",    "nearphrases", 
+  "colset",        "colsetlist",    "nearset",       "nearphrases", 
   "phrase",        "neardist_opt",  "star_opt",    
 };
 #endif /* NDEBUG */
@@ -186047,31 +186088,32 @@ static const char *const fts5yyTokenName[] = {
 */
 static const char *const fts5yyRuleName[] = {
  /*   0 */ "input ::= expr",
- /*   1 */ "expr ::= expr AND expr",
- /*   2 */ "expr ::= expr OR expr",
- /*   3 */ "expr ::= expr NOT expr",
- /*   4 */ "expr ::= LP expr RP",
- /*   5 */ "expr ::= exprlist",
- /*   6 */ "exprlist ::= cnearset",
- /*   7 */ "exprlist ::= exprlist cnearset",
- /*   8 */ "cnearset ::= nearset",
- /*   9 */ "cnearset ::= colset COLON nearset",
- /*  10 */ "colset ::= MINUS LCP colsetlist RCP",
- /*  11 */ "colset ::= LCP colsetlist RCP",
- /*  12 */ "colset ::= STRING",
- /*  13 */ "colset ::= MINUS STRING",
- /*  14 */ "colsetlist ::= colsetlist STRING",
- /*  15 */ "colsetlist ::= STRING",
- /*  16 */ "nearset ::= phrase",
- /*  17 */ "nearset ::= STRING LP nearphrases neardist_opt RP",
- /*  18 */ "nearphrases ::= phrase",
- /*  19 */ "nearphrases ::= nearphrases phrase",
- /*  20 */ "neardist_opt ::=",
- /*  21 */ "neardist_opt ::= COMMA STRING",
- /*  22 */ "phrase ::= phrase PLUS STRING star_opt",
- /*  23 */ "phrase ::= STRING star_opt",
- /*  24 */ "star_opt ::= STAR",
- /*  25 */ "star_opt ::=",
+ /*   1 */ "colset ::= MINUS LCP colsetlist RCP",
+ /*   2 */ "colset ::= LCP colsetlist RCP",
+ /*   3 */ "colset ::= STRING",
+ /*   4 */ "colset ::= MINUS STRING",
+ /*   5 */ "colsetlist ::= colsetlist STRING",
+ /*   6 */ "colsetlist ::= STRING",
+ /*   7 */ "expr ::= expr AND expr",
+ /*   8 */ "expr ::= expr OR expr",
+ /*   9 */ "expr ::= expr NOT expr",
+ /*  10 */ "expr ::= colset COLON LP expr RP",
+ /*  11 */ "expr ::= LP expr RP",
+ /*  12 */ "expr ::= exprlist",
+ /*  13 */ "exprlist ::= cnearset",
+ /*  14 */ "exprlist ::= exprlist cnearset",
+ /*  15 */ "cnearset ::= nearset",
+ /*  16 */ "cnearset ::= colset COLON nearset",
+ /*  17 */ "nearset ::= phrase",
+ /*  18 */ "nearset ::= STRING LP nearphrases neardist_opt RP",
+ /*  19 */ "nearphrases ::= phrase",
+ /*  20 */ "nearphrases ::= nearphrases phrase",
+ /*  21 */ "neardist_opt ::=",
+ /*  22 */ "neardist_opt ::= COMMA STRING",
+ /*  23 */ "phrase ::= phrase PLUS STRING star_opt",
+ /*  24 */ "phrase ::= STRING star_opt",
+ /*  25 */ "star_opt ::= STAR",
+ /*  26 */ "star_opt ::=",
 };
 #endif /* NDEBUG */
 
@@ -186201,16 +186243,16 @@ static void fts5yy_destructor(
  sqlite3Fts5ParseNodeFree((fts5yypminor->fts5yy24)); 
 }
       break;
-    case 20: /* nearset */
-    case 23: /* nearphrases */
+    case 20: /* colset */
+    case 21: /* colsetlist */
 {
- sqlite3Fts5ParseNearsetFree((fts5yypminor->fts5yy46)); 
+ sqlite3_free((fts5yypminor->fts5yy11)); 
 }
       break;
-    case 21: /* colset */
-    case 22: /* colsetlist */
+    case 22: /* nearset */
+    case 23: /* nearphrases */
 {
- sqlite3_free((fts5yypminor->fts5yy11)); 
+ sqlite3Fts5ParseNearsetFree((fts5yypminor->fts5yy46)); 
 }
       break;
     case 24: /* phrase */
@@ -186470,23 +186512,24 @@ static const struct {
   unsigned char nrhs;     /* Number of right-hand side symbols in the rule */
 } fts5yyRuleInfo[] = {
   { 16, 1 },
+  { 20, 4 },
+  { 20, 3 },
+  { 20, 1 },
+  { 20, 2 },
+  { 21, 2 },
+  { 21, 1 },
   { 17, 3 },
   { 17, 3 },
   { 17, 3 },
+  { 17, 5 },
   { 17, 3 },
   { 17, 1 },
   { 19, 1 },
   { 19, 2 },
   { 18, 1 },
   { 18, 3 },
-  { 21, 4 },
-  { 21, 3 },
-  { 21, 1 },
-  { 21, 2 },
-  { 22, 2 },
   { 22, 1 },
-  { 20, 1 },
-  { 20, 5 },
+  { 22, 5 },
   { 23, 1 },
   { 23, 2 },
   { 25, 0 },
@@ -186561,87 +186604,94 @@ static void fts5yy_reduce(
       case 0: /* input ::= expr */
 { sqlite3Fts5ParseFinished(pParse, fts5yymsp[0].minor.fts5yy24); }
         break;
-      case 1: /* expr ::= expr AND expr */
+      case 1: /* colset ::= MINUS LCP colsetlist RCP */
+{ 
+    fts5yymsp[-3].minor.fts5yy11 = sqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
+}
+        break;
+      case 2: /* colset ::= LCP colsetlist RCP */
+{ fts5yymsp[-2].minor.fts5yy11 = fts5yymsp[-1].minor.fts5yy11; }
+        break;
+      case 3: /* colset ::= STRING */
+{
+  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
+}
+  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
+        break;
+      case 4: /* colset ::= MINUS STRING */
+{
+  fts5yymsp[-1].minor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
+  fts5yymsp[-1].minor.fts5yy11 = sqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
+}
+        break;
+      case 5: /* colsetlist ::= colsetlist STRING */
+{ 
+  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, fts5yymsp[-1].minor.fts5yy11, &fts5yymsp[0].minor.fts5yy0); }
+  fts5yymsp[-1].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
+        break;
+      case 6: /* colsetlist ::= STRING */
+{ 
+  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0); 
+}
+  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
+        break;
+      case 7: /* expr ::= expr AND expr */
 {
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseNode(pParse, FTS5_AND, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
 }
   fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 2: /* expr ::= expr OR expr */
+      case 8: /* expr ::= expr OR expr */
 {
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseNode(pParse, FTS5_OR, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
 }
   fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 3: /* expr ::= expr NOT expr */
+      case 9: /* expr ::= expr NOT expr */
 {
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseNode(pParse, FTS5_NOT, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
 }
   fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 4: /* expr ::= LP expr RP */
+      case 10: /* expr ::= colset COLON LP expr RP */
+{
+  sqlite3Fts5ParseSetColset(pParse, fts5yymsp[-1].minor.fts5yy24, fts5yymsp[-4].minor.fts5yy11);
+  fts5yylhsminor.fts5yy24 = fts5yymsp[-1].minor.fts5yy24;
+}
+  fts5yymsp[-4].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
+        break;
+      case 11: /* expr ::= LP expr RP */
 {fts5yymsp[-2].minor.fts5yy24 = fts5yymsp[-1].minor.fts5yy24;}
         break;
-      case 5: /* expr ::= exprlist */
-      case 6: /* exprlist ::= cnearset */ fts5yytestcase(fts5yyruleno==6);
+      case 12: /* expr ::= exprlist */
+      case 13: /* exprlist ::= cnearset */ fts5yytestcase(fts5yyruleno==13);
 {fts5yylhsminor.fts5yy24 = fts5yymsp[0].minor.fts5yy24;}
   fts5yymsp[0].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 7: /* exprlist ::= exprlist cnearset */
+      case 14: /* exprlist ::= exprlist cnearset */
 {
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseImplicitAnd(pParse, fts5yymsp[-1].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24);
 }
   fts5yymsp[-1].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 8: /* cnearset ::= nearset */
+      case 15: /* cnearset ::= nearset */
 { 
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy46); 
 }
   fts5yymsp[0].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 9: /* cnearset ::= colset COLON nearset */
+      case 16: /* cnearset ::= colset COLON nearset */
 { 
-  sqlite3Fts5ParseSetColset(pParse, fts5yymsp[0].minor.fts5yy46, fts5yymsp[-2].minor.fts5yy11);
   fts5yylhsminor.fts5yy24 = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy46); 
+  sqlite3Fts5ParseSetColset(pParse, fts5yylhsminor.fts5yy24, fts5yymsp[-2].minor.fts5yy11);
 }
   fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
         break;
-      case 10: /* colset ::= MINUS LCP colsetlist RCP */
-{ 
-    fts5yymsp[-3].minor.fts5yy11 = sqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
-}
-        break;
-      case 11: /* colset ::= LCP colsetlist RCP */
-{ fts5yymsp[-2].minor.fts5yy11 = fts5yymsp[-1].minor.fts5yy11; }
-        break;
-      case 12: /* colset ::= STRING */
-{
-  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
-}
-  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 13: /* colset ::= MINUS STRING */
-{
-  fts5yymsp[-1].minor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
-  fts5yymsp[-1].minor.fts5yy11 = sqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
-}
-        break;
-      case 14: /* colsetlist ::= colsetlist STRING */
-{ 
-  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, fts5yymsp[-1].minor.fts5yy11, &fts5yymsp[0].minor.fts5yy0); }
-  fts5yymsp[-1].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 15: /* colsetlist ::= STRING */
-{ 
-  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0); 
-}
-  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 16: /* nearset ::= phrase */
+      case 17: /* nearset ::= phrase */
 { fts5yylhsminor.fts5yy46 = sqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy53); }
   fts5yymsp[0].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
         break;
-      case 17: /* nearset ::= STRING LP nearphrases neardist_opt RP */
+      case 18: /* nearset ::= STRING LP nearphrases neardist_opt RP */
 {
   sqlite3Fts5ParseNear(pParse, &fts5yymsp[-4].minor.fts5yy0);
   sqlite3Fts5ParseSetDistance(pParse, fts5yymsp[-2].minor.fts5yy46, &fts5yymsp[-1].minor.fts5yy0);
@@ -186649,40 +186699,40 @@ static void fts5yy_reduce(
 }
   fts5yymsp[-4].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
         break;
-      case 18: /* nearphrases ::= phrase */
+      case 19: /* nearphrases ::= phrase */
 { 
   fts5yylhsminor.fts5yy46 = sqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy53); 
 }
   fts5yymsp[0].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
         break;
-      case 19: /* nearphrases ::= nearphrases phrase */
+      case 20: /* nearphrases ::= nearphrases phrase */
 {
   fts5yylhsminor.fts5yy46 = sqlite3Fts5ParseNearset(pParse, fts5yymsp[-1].minor.fts5yy46, fts5yymsp[0].minor.fts5yy53);
 }
   fts5yymsp[-1].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
         break;
-      case 20: /* neardist_opt ::= */
+      case 21: /* neardist_opt ::= */
 { fts5yymsp[1].minor.fts5yy0.p = 0; fts5yymsp[1].minor.fts5yy0.n = 0; }
         break;
-      case 21: /* neardist_opt ::= COMMA STRING */
+      case 22: /* neardist_opt ::= COMMA STRING */
 { fts5yymsp[-1].minor.fts5yy0 = fts5yymsp[0].minor.fts5yy0; }
         break;
-      case 22: /* phrase ::= phrase PLUS STRING star_opt */
+      case 23: /* phrase ::= phrase PLUS STRING star_opt */
 { 
   fts5yylhsminor.fts5yy53 = sqlite3Fts5ParseTerm(pParse, fts5yymsp[-3].minor.fts5yy53, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy4);
 }
   fts5yymsp[-3].minor.fts5yy53 = fts5yylhsminor.fts5yy53;
         break;
-      case 23: /* phrase ::= STRING star_opt */
+      case 24: /* phrase ::= STRING star_opt */
 { 
   fts5yylhsminor.fts5yy53 = sqlite3Fts5ParseTerm(pParse, 0, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy4);
 }
   fts5yymsp[-1].minor.fts5yy53 = fts5yylhsminor.fts5yy53;
         break;
-      case 24: /* star_opt ::= STAR */
+      case 25: /* star_opt ::= STAR */
 { fts5yymsp[0].minor.fts5yy4 = 1; }
         break;
-      case 25: /* star_opt ::= */
+      case 26: /* star_opt ::= */
 { fts5yymsp[1].minor.fts5yy4 = 0; }
         break;
       default:
@@ -190898,25 +190948,110 @@ static Fts5Colset *sqlite3Fts5ParseColset(
   return pRet;
 }
 
+/*
+** If argument pOrig is NULL, or if (*pRc) is set to anything other than
+** SQLITE_OK when this function is called, NULL is returned. 
+**
+** Otherwise, a copy of (*pOrig) is made into memory obtained from
+** sqlite3Fts5MallocZero() and a pointer to it returned. If the allocation
+** fails, (*pRc) is set to SQLITE_NOMEM and NULL is returned.
+*/
+static Fts5Colset *fts5CloneColset(int *pRc, Fts5Colset *pOrig){
+  Fts5Colset *pRet;
+  if( pOrig ){
+    int nByte = sizeof(Fts5Colset) + (pOrig->nCol-1) * sizeof(int);
+    pRet = (Fts5Colset*)sqlite3Fts5MallocZero(pRc, nByte);
+    if( pRet ){ 
+      memcpy(pRet, pOrig, nByte);
+    }
+  }else{
+    pRet = 0;
+  }
+  return pRet;
+}
+
+/*
+** Remove from colset pColset any columns that are not also in colset pMerge.
+*/
+static void fts5MergeColset(Fts5Colset *pColset, Fts5Colset *pMerge){
+  int iIn = 0;          /* Next input in pColset */
+  int iMerge = 0;       /* Next input in pMerge */
+  int iOut = 0;         /* Next output slot in pColset */
+
+  while( iIn<pColset->nCol && iMerge<pMerge->nCol ){
+    int iDiff = pColset->aiCol[iIn] - pMerge->aiCol[iMerge];
+    if( iDiff==0 ){
+      pColset->aiCol[iOut++] = pMerge->aiCol[iMerge];
+      iMerge++;
+      iIn++;
+    }else if( iDiff>0 ){
+      iMerge++;
+    }else{
+      iIn++;
+    }
+  }
+  pColset->nCol = iOut;
+}
+
+/*
+** Recursively apply colset pColset to expression node pNode and all of
+** its decendents. If (*ppFree) is not NULL, it contains a spare copy
+** of pColset. This function may use the spare copy and set (*ppFree) to
+** zero, or it may create copies of pColset using fts5CloneColset().
+*/
+static void fts5ParseSetColset(
+  Fts5Parse *pParse, 
+  Fts5ExprNode *pNode, 
+  Fts5Colset *pColset,
+  Fts5Colset **ppFree
+){
+  if( pParse->rc==SQLITE_OK ){
+    assert( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING 
+         || pNode->eType==FTS5_AND  || pNode->eType==FTS5_OR
+         || pNode->eType==FTS5_NOT  || pNode->eType==FTS5_EOF
+    );
+    if( pNode->eType==FTS5_STRING || pNode->eType==FTS5_TERM ){
+      Fts5ExprNearset *pNear = pNode->pNear;
+      if( pNear->pColset ){
+        fts5MergeColset(pNear->pColset, pColset);
+        if( pNear->pColset->nCol==0 ){
+          pNode->eType = FTS5_EOF;
+          pNode->xNext = 0;
+        }
+      }else if( *ppFree ){
+        pNear->pColset = pColset;
+        *ppFree = 0;
+      }else{
+        pNear->pColset = fts5CloneColset(&pParse->rc, pColset);
+      }
+    }else{
+      int i;
+      assert( pNode->eType!=FTS5_EOF || pNode->nChild==0 );
+      for(i=0; i<pNode->nChild; i++){
+        fts5ParseSetColset(pParse, pNode->apChild[i], pColset, ppFree);
+      }
+    }
+  }
+}
+
+/*
+** Apply colset pColset to expression node pExpr and all of its descendents.
+*/
 static void sqlite3Fts5ParseSetColset(
   Fts5Parse *pParse, 
-  Fts5ExprNearset *pNear, 
+  Fts5ExprNode *pExpr, 
   Fts5Colset *pColset 
 ){
+  Fts5Colset *pFree = pColset;
   if( pParse->pConfig->eDetail==FTS5_DETAIL_NONE ){
     pParse->rc = SQLITE_ERROR;
     pParse->zErr = sqlite3_mprintf(
       "fts5: column queries are not supported (detail=none)"
     );
-    sqlite3_free(pColset);
-    return;
-  }
-
-  if( pNear ){
-    pNear->pColset = pColset;
   }else{
-    sqlite3_free(pColset);
+    fts5ParseSetColset(pParse, pExpr, pColset, &pFree);
   }
+  sqlite3_free(pFree);
 }
 
 static void fts5ExprAssignXNext(Fts5ExprNode *pNode){
@@ -195421,23 +195556,23 @@ static int fts5IndexExtractCol(
   return p - (*pa);
 }
 
-static int fts5IndexExtractColset (
+static void fts5IndexExtractColset(
+  int *pRc,
   Fts5Colset *pColset,            /* Colset to filter on */
   const u8 *pPos, int nPos,       /* Position list */
   Fts5Buffer *pBuf                /* Output buffer */
 ){
-  int rc = SQLITE_OK;
-  int i;
-
-  fts5BufferZero(pBuf);
-  for(i=0; i<pColset->nCol; i++){
-    const u8 *pSub = pPos;
-    int nSub = fts5IndexExtractCol(&pSub, nPos, pColset->aiCol[i]);
-    if( nSub ){
-      fts5BufferAppendBlob(&rc, pBuf, nSub, pSub);
+  if( *pRc==SQLITE_OK ){
+    int i;
+    fts5BufferZero(pBuf);
+    for(i=0; i<pColset->nCol; i++){
+      const u8 *pSub = pPos;
+      int nSub = fts5IndexExtractCol(&pSub, nPos, pColset->aiCol[i]);
+      if( nSub ){
+        fts5BufferAppendBlob(pRc, pBuf, nSub, pSub);
+      }
     }
   }
-  return rc;
 }
 
 /*
@@ -195561,8 +195696,9 @@ static void fts5IterSetOutputs_Full(Fts5Iter *pIter, Fts5SegIter *pSeg){
       pIter->base.nData = fts5IndexExtractCol(&a, pSeg->nPos,pColset->aiCol[0]);
       pIter->base.pData = a;
     }else{
+      int *pRc = &pIter->pIndex->rc;
       fts5BufferZero(&pIter->poslist);
-      fts5IndexExtractColset(pColset, a, pSeg->nPos, &pIter->poslist);
+      fts5IndexExtractColset(pRc, pColset, a, pSeg->nPos, &pIter->poslist);
       pIter->base.pData = pIter->poslist.p;
       pIter->base.nData = pIter->poslist.n;
     }
@@ -201372,7 +201508,7 @@ static void fts5SourceIdFunc(
 ){
   assert( nArg==0 );
   UNUSED_PARAM2(nArg, apUnused);
-  sqlite3_result_text(pCtx, "fts5: 2017-04-08 09:12:20 a921ada89050ce1d162fd1b0056939573635e2cec7ac0c2a99ae924b3ae593f7", -1, SQLITE_TRANSIENT);
+  sqlite3_result_text(pCtx, "fts5: 2017-04-12 17:50:12 c847543f8bb1376fef52bca72b4191162a32eb7e6c5f0cd1aa0ab116b3183396", -1, SQLITE_TRANSIENT);
 }
 
 static int fts5Init(sqlite3 *db){

SquiLu-ext/sqlite3.h

@@ -123,7 +123,7 @@ extern "C" {
 */
 #define SQLITE_VERSION        "3.19.0"
 #define SQLITE_VERSION_NUMBER 3019000
-#define SQLITE_SOURCE_ID      "2017-04-11 01:30:42 a47efb7c8520a01110ce3b3531ebe1bab6720780d67fba001992c44c5807d332"
+#define SQLITE_SOURCE_ID      "2017-04-12 17:50:12 c847543f8bb1376fef52bca72b4191162a32eb7e6c5f0cd1aa0ab116b3183396"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers