int sqlite3Fts5ExprPhraseSize(Fts5Expr*, int iPhrase);
int sqlite3Fts5ExprPoslist(Fts5Expr*, int, const u8 **);

Fts5PoslistWriter *sqlite3Fts5ExprClearPoslists(Fts5Expr*);
int sqlite3Fts5ExprPopulatePoslists(
    Fts5Config*, Fts5Expr*, Fts5PoslistWriter*, int, const char*, int
);


int sqlite3Fts5ExprClonePhrase(Fts5Config*, Fts5Expr*, int, Fts5Expr**);

int sqlite3Fts5ExprPhraseCollist(Fts5Expr *, int, const u8 **, int *);

/*******************************************
** The fts5_expr.c API above this point is used by the other hand-written

int sqlite3Fts5ExprPhraseSize(Fts5Expr*, int iPhrase);
int sqlite3Fts5ExprPoslist(Fts5Expr*, int, const u8 **);

Fts5PoslistWriter *sqlite3Fts5ExprClearPoslists(Fts5Expr*);
int sqlite3Fts5ExprPopulatePoslists(
    Fts5Config*, Fts5Expr*, Fts5PoslistWriter*, int, const char*, int
);
void sqlite3Fts5ExprCheckPoslists(Fts5Expr*, i64);

int sqlite3Fts5ExprClonePhrase(Fts5Config*, Fts5Expr*, int, Fts5Expr**);

int sqlite3Fts5ExprPhraseCollist(Fts5Expr *, int, const u8 **, int *);

/*******************************************
** The fts5_expr.c API above this point is used by the other hand-written

  sCtx.aWriter = aWriter;
  sCtx.iOff = (((i64)iCol) << 32) - 1;

  return sqlite3Fts5Tokenize(pConfig, 
      FTS5_TOKENIZE_AUX, z, n, (void*)&sCtx, fts5ExprPopulatePoslistsCb
  );
}































































/*
** This function is only called for detail=columns tables. 
*/
int sqlite3Fts5ExprPhraseCollist(
  Fts5Expr *pExpr, 
  int iPhrase, 

  sCtx.aWriter = aWriter;
  sCtx.iOff = (((i64)iCol) << 32) - 1;

  return sqlite3Fts5Tokenize(pConfig, 
      FTS5_TOKENIZE_AUX, z, n, (void*)&sCtx, fts5ExprPopulatePoslistsCb
  );
}

static void fts5ExprClearPoslists(Fts5ExprNode *pNode){
  if( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING ){
    pNode->pNear->apPhrase[0]->poslist.n = 0;
  }else{
    int i;
    for(i=0; i<pNode->nChild; i++){
      fts5ExprClearPoslists(pNode->apChild[i]);
    }
  }
}

static int fts5ExprCheckPoslists(Fts5ExprNode *pNode, i64 iRowid){
  if( pNode ){
    pNode->iRowid = iRowid;
    pNode->bEof = 0;
    switch( pNode->eType ){
      case FTS5_TERM:
      case FTS5_STRING:
        return (pNode->pNear->apPhrase[0]->poslist.n>0);

      case FTS5_AND: {
        int i;
        for(i=0; i<pNode->nChild; i++){
          if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid)==0 ){
            fts5ExprClearPoslists(pNode);
            return 0;
          }
        }
        return 1;
      }

      case FTS5_OR: {
        int i;
        int bRet = 0;
        for(i=0; i<pNode->nChild; i++){
          if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid) ){
            bRet = 1;
          }
        }
        if( bRet==0 ){
          fts5ExprClearPoslists(pNode);
        }
        return bRet;
      }

      default: {
        assert( pNode->eType==FTS5_NOT );
        if( 0==fts5ExprCheckPoslists(pNode->apChild[0], iRowid)
         || 0!=fts5ExprCheckPoslists(pNode->apChild[1], iRowid)
        ){
          fts5ExprClearPoslists(pNode);
          return 0;
        }
        return 1;
      }
    }
  }
}
void sqlite3Fts5ExprCheckPoslists(Fts5Expr *pExpr, i64 iRowid){
  fts5ExprCheckPoslists(pExpr->pRoot, iRowid);
}

/*
** This function is only called for detail=columns tables. 
*/
int sqlite3Fts5ExprPhraseCollist(
  Fts5Expr *pExpr, 
  int iPhrase, 

** position list content (if any).
*/
static void fts5SegIterLoadNPos(Fts5Index *p, Fts5SegIter *pIter){
  if( p->rc==SQLITE_OK ){
    int iOff = pIter->iLeafOffset;  /* Offset to read at */
    ASSERT_SZLEAF_OK(pIter->pLeaf);
    if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){

      pIter->bDel = 0;
      pIter->nPos = 1;
      if( iOff<pIter->pLeaf->szLeaf && pIter->pLeaf->p[iOff]==0 ){
        pIter->bDel = 1;
        iOff++;
        if( iOff<pIter->pLeaf->szLeaf && pIter->pLeaf->p[iOff]==0 ){
          pIter->nPos = 1;
          iOff++;
        }else{
          pIter->nPos = 0;
        }
      }
    }else{
................................................................................
  if( n>pIter->iEndofDoclist ){
    n = pIter->iEndofDoclist;
  }

  ASSERT_SZLEAF_OK(pIter->pLeaf);
  while( 1 ){
    i64 iDelta = 0;
    int nPos;
    int bDummy;

    if( eDetail==FTS5_DETAIL_NONE ){
      /* todo */




    }else{


      i += fts5GetPoslistSize(&a[i], &nPos, &bDummy);
      i += nPos;
    }
    if( i>=n ) break;
    i += fts5GetVarint(&a[i], (u64*)&iDelta);
    pIter->iRowid += iDelta;

................................................................................
            pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
                &pLeaf->p[pLeaf->szLeaf], iOff
            );
            pIter->iLeafOffset = iOff;
            pIter->iEndofDoclist = iOff;
            bNewTerm = 1;
          }



          if( iOff>=pLeaf->szLeaf ){
            p->rc = FTS5_CORRUPT;
            return;
          }
        }
      }

      /* Check if the iterator is now at EOF. If so, return early. */
................................................................................
        }
      }
    }
  }
}

#define SWAPVAL(T, a, b) { T tmp; tmp=a; a=b; b=tmp; }






/*
** Iterator pIter currently points to the first rowid in a doclist. This
** function sets the iterator up so that iterates in reverse order through
** the doclist.
*/
static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
................................................................................
    pLast = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
  }else{
    Fts5Data *pLeaf = pIter->pLeaf;         /* Current leaf data */

    /* Currently, Fts5SegIter.iLeafOffset points to the first byte of
    ** position-list content for the current rowid. Back it up so that it
    ** points to the start of the position-list size field. */

    if( eDetail!=FTS5_DETAIL_NONE ){
      pIter->iLeafOffset -= sqlite3Fts5GetVarintLen(pIter->nPos*2+pIter->bDel);
    }














    /* If this condition is true then the largest rowid for the current
    ** term may not be stored on the current page. So search forward to
    ** see where said rowid really is.  */
    if( pIter->iEndofDoclist>=pLeaf->szLeaf ){
      int pgno;
      Fts5StructureSegment *pSeg = pIter->pSeg;
................................................................................
  ){
    return;
  }

  pIter->pDlidx = fts5DlidxIterInit(p, bRev, iSeg, pIter->iTermLeafPgno);
}

#define fts5IndexSkipVarint(a, iOff) {            \
  int iEnd = iOff+9;                              \
  while( (a[iOff++] & 0x80) && iOff<iEnd );       \
}

/*
** The iterator object passed as the second argument currently contains
** no valid values except for the Fts5SegIter.pLeaf member variable. This
** function searches the leaf page for a term matching (pTerm/nTerm).
**
** If the specified term is found on the page, then the iterator is left
** pointing to it. If argument bGe is zero and the term is not found,
................................................................................
  /* Obtain a reference to the index structure and allocate a new segment-id
  ** for the new level-0 segment.  */
  pStruct = fts5StructureRead(p);
  iSegid = fts5AllocateSegid(p, pStruct);

  if( iSegid ){
    const int pgsz = p->pConfig->pgsz;

    Fts5StructureSegment *pSeg;   /* New segment within pStruct */
    Fts5Buffer *pBuf;             /* Buffer in which to assemble leaf page */
    Fts5Buffer *pPgidx;           /* Buffer in which to assemble pgidx */

    Fts5SegWriter writer;
    fts5WriteInit(p, &writer, iSegid);

................................................................................
        i64 iDelta = 0;
        int iOff = 0;

        /* The entire doclist will not fit on this leaf. The following 
        ** loop iterates through the poslists that make up the current 
        ** doclist.  */
        while( p->rc==SQLITE_OK && iOff<nDoclist ){
          int nPos;
          int nCopy;
          int bDummy;
          iOff += fts5GetVarint(&pDoclist[iOff], (u64*)&iDelta);
          nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDummy);
          nCopy += nPos;
          iRowid += iDelta;
          
          if( writer.bFirstRowidInPage ){
            fts5PutU16(&pBuf->p[0], (u16)pBuf->n);   /* first rowid on page */
            pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid);
            writer.bFirstRowidInPage = 0;
            fts5WriteDlidxAppend(p, &writer, iRowid);
          }else{
            pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iDelta);
          }
          assert( pBuf->n<=pBuf->nSpace );


















          if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){
            /* The entire poslist will fit on the current leaf. So copy
            ** it in one go. */
            fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy);
          }else{
            /* The entire poslist will not fit on this leaf. So it needs
            ** to be broken into sections. The only qualification being
            ** that each varint must be stored contiguously.  */
            const u8 *pPoslist = &pDoclist[iOff];
            int iPos = 0;
            while( p->rc==SQLITE_OK ){
              int nSpace = pgsz - pBuf->n - pPgidx->n;
              int n = 0;
              if( (nCopy - iPos)<=nSpace ){
                n = nCopy - iPos;
              }else{
                n = fts5PoslistPrefix(&pPoslist[iPos], nSpace);
              }
              assert( n>0 );
              fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n);
              iPos += n;
              if( (pBuf->n + pPgidx->n)>=pgsz ){
                fts5WriteFlushLeaf(p, &writer);
              }
              if( iPos>=nCopy ) break;
            }
          }
          iOff += nCopy;

        }
      }

      /* TODO2: Doclist terminator written here. */
      /* pBuf->p[pBuf->n++] = '\0'; */
      assert( pBuf->n<=pBuf->nSpace );
      sqlite3Fts5HashScanNext(pHash);
................................................................................
  sqlite3Fts5BufferSize(&p->rc, &out, p1->n + p2->n);
  if( p->rc ) return;

  fts5NextRowid(p1, &i1, &iRowid1);
  fts5NextRowid(p2, &i2, &iRowid2);
  while( i1>=0 || i2>=0 ){
    if( i1>=0 && (i2<0 || iRowid1<iRowid2) ){

      fts5BufferSafeAppendVarint(&out, iRowid1 - iOut);
      iOut = iRowid1;
      fts5NextRowid(p1, &i1, &iRowid1);
    }else{

      fts5BufferSafeAppendVarint(&out, iRowid2 - iOut);
      iOut = iRowid2;
      fts5NextRowid(p2, &i2, &iRowid2);
      if( i1>=0 && iRowid1==iRowid2 ){
        fts5NextRowid(p1, &i1, &iRowid1);
      }

    }
  }

  fts5BufferSwap(&out, p1);
  fts5BufferFree(&out);
}

................................................................................
    }else{
      rc = sqlite3Fts5IterPoslistBuffer(pIdxIter, &buf);
      if( rc==SQLITE_OK ){
        Fts5PoslistReader sReader;
        for(sqlite3Fts5PoslistReaderInit(buf.p, buf.n, &sReader);
            sReader.bEof==0;
            sqlite3Fts5PoslistReaderNext(&sReader)
           ){
          int iCol = FTS5_POS2COLUMN(sReader.iPos);
          int iOff = FTS5_POS2OFFSET(sReader.iPos);
          cksum ^= sqlite3Fts5IndexEntryCksum(rowid, iCol, iOff, iIdx, z, n);
        }
      }
    }
    if( rc==SQLITE_OK ){
................................................................................
    i64 iRowid = fts5MultiIterRowid(pIter);
    char *z = (char*)fts5MultiIterTerm(pIter, &n);

    /* If this is a new term, query for it. Update cksum3 with the results. */
    fts5TestTerm(p, &term, z, n, cksum2, &cksum3);

    if( eDetail==FTS5_DETAIL_NONE ){

      cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, 0, 0, -1, z, n);

    }else{
      poslist.n = 0;
      fts5SegiterPoslist(p, &pIter->aSeg[pIter->aFirst[1].iFirst], 0, &poslist);
      while( 0==sqlite3Fts5PoslistNext64(poslist.p, poslist.n, &iOff, &iPos) ){
        int iCol = FTS5_POS2COLUMN(iPos);
        int iTokOff = FTS5_POS2OFFSET(iPos);
        cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, iCol, iTokOff, -1, z, n);

** position list content (if any).
*/
static void fts5SegIterLoadNPos(Fts5Index *p, Fts5SegIter *pIter){
  if( p->rc==SQLITE_OK ){
    int iOff = pIter->iLeafOffset;  /* Offset to read at */
    ASSERT_SZLEAF_OK(pIter->pLeaf);
    if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
      int iEod = MIN(pIter->iEndofDoclist, pIter->pLeaf->szLeaf);
      pIter->bDel = 0;
      pIter->nPos = 1;
      if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
        pIter->bDel = 1;
        iOff++;
        if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
          pIter->nPos = 1;
          iOff++;
        }else{
          pIter->nPos = 0;
        }
      }
    }else{
................................................................................
  if( n>pIter->iEndofDoclist ){
    n = pIter->iEndofDoclist;
  }

  ASSERT_SZLEAF_OK(pIter->pLeaf);
  while( 1 ){
    i64 iDelta = 0;



    if( eDetail==FTS5_DETAIL_NONE ){
      /* todo */
      if( i<n && a[i]==0 ){
        i++;
        if( i<n && a[i]==0 ) i++;
      }
    }else{
      int nPos;
      int bDummy;
      i += fts5GetPoslistSize(&a[i], &nPos, &bDummy);
      i += nPos;
    }
    if( i>=n ) break;
    i += fts5GetVarint(&a[i], (u64*)&iDelta);
    pIter->iRowid += iDelta;

................................................................................
            pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
                &pLeaf->p[pLeaf->szLeaf], iOff
            );
            pIter->iLeafOffset = iOff;
            pIter->iEndofDoclist = iOff;
            bNewTerm = 1;
          }
          assert_nc( iOff<pLeaf->szLeaf 
                  || p->pConfig->eDetail==FTS5_DETAIL_NONE 
          );
          if( iOff>pLeaf->szLeaf ){
            p->rc = FTS5_CORRUPT;
            return;
          }
        }
      }

      /* Check if the iterator is now at EOF. If so, return early. */
................................................................................
        }
      }
    }
  }
}

#define SWAPVAL(T, a, b) { T tmp; tmp=a; a=b; b=tmp; }

#define fts5IndexSkipVarint(a, iOff) {            \
  int iEnd = iOff+9;                              \
  while( (a[iOff++] & 0x80) && iOff<iEnd );       \
}

/*
** Iterator pIter currently points to the first rowid in a doclist. This
** function sets the iterator up so that iterates in reverse order through
** the doclist.
*/
static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
................................................................................
    pLast = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
  }else{
    Fts5Data *pLeaf = pIter->pLeaf;         /* Current leaf data */

    /* Currently, Fts5SegIter.iLeafOffset points to the first byte of
    ** position-list content for the current rowid. Back it up so that it
    ** points to the start of the position-list size field. */
#if 0
    if( eDetail!=FTS5_DETAIL_NONE ){
      pIter->iLeafOffset -= sqlite3Fts5GetVarintLen(pIter->nPos*2+pIter->bDel);
    }
#else
    int iPoslist;
    if( pIter->iTermLeafPgno==pIter->iLeafPgno ){
      iPoslist = pIter->iTermLeafOffset;
    }else{
      iPoslist = 4;
    }
    fts5IndexSkipVarint(pLeaf->p, iPoslist);
    assert( eDetail==FTS5_DETAIL_NONE || iPoslist==(
        pIter->iLeafOffset - sqlite3Fts5GetVarintLen(pIter->nPos*2+pIter->bDel)
    ));
    pIter->iLeafOffset = iPoslist;
#endif

    /* If this condition is true then the largest rowid for the current
    ** term may not be stored on the current page. So search forward to
    ** see where said rowid really is.  */
    if( pIter->iEndofDoclist>=pLeaf->szLeaf ){
      int pgno;
      Fts5StructureSegment *pSeg = pIter->pSeg;
................................................................................
  ){
    return;
  }

  pIter->pDlidx = fts5DlidxIterInit(p, bRev, iSeg, pIter->iTermLeafPgno);
}






/*
** The iterator object passed as the second argument currently contains
** no valid values except for the Fts5SegIter.pLeaf member variable. This
** function searches the leaf page for a term matching (pTerm/nTerm).
**
** If the specified term is found on the page, then the iterator is left
** pointing to it. If argument bGe is zero and the term is not found,
................................................................................
  /* Obtain a reference to the index structure and allocate a new segment-id
  ** for the new level-0 segment.  */
  pStruct = fts5StructureRead(p);
  iSegid = fts5AllocateSegid(p, pStruct);

  if( iSegid ){
    const int pgsz = p->pConfig->pgsz;
    int eDetail = p->pConfig->eDetail;
    Fts5StructureSegment *pSeg;   /* New segment within pStruct */
    Fts5Buffer *pBuf;             /* Buffer in which to assemble leaf page */
    Fts5Buffer *pPgidx;           /* Buffer in which to assemble pgidx */

    Fts5SegWriter writer;
    fts5WriteInit(p, &writer, iSegid);

................................................................................
        i64 iDelta = 0;
        int iOff = 0;

        /* The entire doclist will not fit on this leaf. The following 
        ** loop iterates through the poslists that make up the current 
        ** doclist.  */
        while( p->rc==SQLITE_OK && iOff<nDoclist ){



          iOff += fts5GetVarint(&pDoclist[iOff], (u64*)&iDelta);


          iRowid += iDelta;
          
          if( writer.bFirstRowidInPage ){
            fts5PutU16(&pBuf->p[0], (u16)pBuf->n);   /* first rowid on page */
            pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid);
            writer.bFirstRowidInPage = 0;
            fts5WriteDlidxAppend(p, &writer, iRowid);
          }else{
            pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iDelta);
          }
          assert( pBuf->n<=pBuf->nSpace );

          if( eDetail==FTS5_DETAIL_NONE ){
            if( iOff<nDoclist && pDoclist[iOff]==0 ){
              pBuf->p[pBuf->n++] = 0;
              iOff++;
              if( iOff<nDoclist && pDoclist[iOff]==0 ){
                pBuf->p[pBuf->n++] = 0;
                iOff++;
              }
            }
            if( (pBuf->n + pPgidx->n)>=pgsz ){
              fts5WriteFlushLeaf(p, &writer);
            }
          }else{
            int bDummy;
            int nPos;
            int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDummy);
            nCopy += nPos;
            if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){
              /* The entire poslist will fit on the current leaf. So copy
              ** it in one go. */
              fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy);
            }else{
              /* The entire poslist will not fit on this leaf. So it needs
              ** to be broken into sections. The only qualification being
              ** that each varint must be stored contiguously.  */
              const u8 *pPoslist = &pDoclist[iOff];
              int iPos = 0;
              while( p->rc==SQLITE_OK ){
                int nSpace = pgsz - pBuf->n - pPgidx->n;
                int n = 0;
                if( (nCopy - iPos)<=nSpace ){
                  n = nCopy - iPos;
                }else{
                  n = fts5PoslistPrefix(&pPoslist[iPos], nSpace);
                }
                assert( n>0 );
                fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n);
                iPos += n;
                if( (pBuf->n + pPgidx->n)>=pgsz ){
                  fts5WriteFlushLeaf(p, &writer);
                }
                if( iPos>=nCopy ) break;
              }
            }
            iOff += nCopy;
          }
        }
      }

      /* TODO2: Doclist terminator written here. */
      /* pBuf->p[pBuf->n++] = '\0'; */
      assert( pBuf->n<=pBuf->nSpace );
      sqlite3Fts5HashScanNext(pHash);
................................................................................
  sqlite3Fts5BufferSize(&p->rc, &out, p1->n + p2->n);
  if( p->rc ) return;

  fts5NextRowid(p1, &i1, &iRowid1);
  fts5NextRowid(p2, &i2, &iRowid2);
  while( i1>=0 || i2>=0 ){
    if( i1>=0 && (i2<0 || iRowid1<iRowid2) ){
      assert( iOut==0 || iRowid1>iOut );
      fts5BufferSafeAppendVarint(&out, iRowid1 - iOut);
      iOut = iRowid1;
      fts5NextRowid(p1, &i1, &iRowid1);
    }else{
      assert( iOut==0 || iRowid2>iOut );
      fts5BufferSafeAppendVarint(&out, iRowid2 - iOut);
      iOut = iRowid2;

      if( i1>=0 && iRowid1==iRowid2 ){
        fts5NextRowid(p1, &i1, &iRowid1);
      }
      fts5NextRowid(p2, &i2, &iRowid2);
    }
  }

  fts5BufferSwap(&out, p1);
  fts5BufferFree(&out);
}

................................................................................
    }else{
      rc = sqlite3Fts5IterPoslistBuffer(pIdxIter, &buf);
      if( rc==SQLITE_OK ){
        Fts5PoslistReader sReader;
        for(sqlite3Fts5PoslistReaderInit(buf.p, buf.n, &sReader);
            sReader.bEof==0;
            sqlite3Fts5PoslistReaderNext(&sReader)
        ){
          int iCol = FTS5_POS2COLUMN(sReader.iPos);
          int iOff = FTS5_POS2OFFSET(sReader.iPos);
          cksum ^= sqlite3Fts5IndexEntryCksum(rowid, iCol, iOff, iIdx, z, n);
        }
      }
    }
    if( rc==SQLITE_OK ){
................................................................................
    i64 iRowid = fts5MultiIterRowid(pIter);
    char *z = (char*)fts5MultiIterTerm(pIter, &n);

    /* If this is a new term, query for it. Update cksum3 with the results. */
    fts5TestTerm(p, &term, z, n, cksum2, &cksum3);

    if( eDetail==FTS5_DETAIL_NONE ){
      if( 0==fts5MultiIterIsEmpty(p, pIter) ){
        cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, 0, 0, -1, z, n);
      }
    }else{
      poslist.n = 0;
      fts5SegiterPoslist(p, &pIter->aSeg[pIter->aFirst[1].iFirst], 0, &poslist);
      while( 0==sqlite3Fts5PoslistNext64(poslist.p, poslist.n, &iOff, &iPos) ){
        int iCol = FTS5_POS2COLUMN(iPos);
        int iTokOff = FTS5_POS2OFFSET(iPos);
        cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, iCol, iTokOff, -1, z, n);

    int iOff = 0;
    rc = SQLITE_OK;

    pSorter->iRowid = sqlite3_column_int64(pSorter->pStmt, 0);
    nBlob = sqlite3_column_bytes(pSorter->pStmt, 1);
    aBlob = a = sqlite3_column_blob(pSorter->pStmt, 1);



    for(i=0; i<(pSorter->nIdx-1); i++){
      int iVal;
      a += fts5GetVarint32(a, iVal);
      iOff += iVal;
      pSorter->aIdx[i] = iOff;
    }
    pSorter->aIdx[i] = &aBlob[nBlob] - a;

    pSorter->aPoslist = a;


    fts5CsrNewrow(pCsr);
  }

  return rc;
}


................................................................................
      *pn = sqlite3_column_bytes(pCsr->pStmt, iCol+1);
    }
  }
  return rc;
}

static int fts5CsrPoslist(Fts5Cursor *pCsr, int iPhrase, const u8 **pa){

  int n;
  int rc = SQLITE_OK;

  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){
    Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
    if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
      Fts5PoslistWriter *aWriter;
      int i;
assert( pCsr->pSorter==0 );  /* fixme */
      aWriter = sqlite3Fts5ExprClearPoslists(pCsr->pExpr);
      if( aWriter==0 ) rc = SQLITE_NOMEM;
      for(i=0; i<pConfig->nCol && rc==SQLITE_OK; i++){
        int n; const char *z;
        rc = fts5ApiColumnText((Fts5Context*)pCsr, i, &z, &n);
        if( rc==SQLITE_OK ){
          rc = sqlite3Fts5ExprPopulatePoslists(
              pConfig, pCsr->pExpr, aWriter, i, z, n
          );
        }
      }
      sqlite3_free(aWriter);



    }
    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST);
  }

  if( pCsr->pSorter ){
    Fts5Sorter *pSorter = pCsr->pSorter;
    int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
    n = pSorter->aIdx[iPhrase] - i1;
    *pa = &pSorter->aPoslist[i1];
  }else{
    n = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
  }
................................................................................
static int fts5PoslistBlob(sqlite3_context *pCtx, Fts5Cursor *pCsr){
  int i;
  int rc = SQLITE_OK;
  int nPhrase = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
  Fts5Buffer val;

  memset(&val, 0, sizeof(Fts5Buffer));



  /* Append the varints */
  for(i=0; i<(nPhrase-1); i++){
    const u8 *dummy;
    int nByte = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &dummy);
    sqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
  }

  /* Append the position lists */
  for(i=0; i<nPhrase; i++){
    const u8 *pPoslist;
    int nPoslist;
    nPoslist = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &pPoslist);
    sqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
























  }

  sqlite3_result_blob(pCtx, val.p, val.n, sqlite3_free);
  return rc;
}

/* 

    int iOff = 0;
    rc = SQLITE_OK;

    pSorter->iRowid = sqlite3_column_int64(pSorter->pStmt, 0);
    nBlob = sqlite3_column_bytes(pSorter->pStmt, 1);
    aBlob = a = sqlite3_column_blob(pSorter->pStmt, 1);

    /* nBlob==0 in detail=none mode. */
    if( nBlob>0 ){
      for(i=0; i<(pSorter->nIdx-1); i++){
        int iVal;
        a += fts5GetVarint32(a, iVal);
        iOff += iVal;
        pSorter->aIdx[i] = iOff;
      }
      pSorter->aIdx[i] = &aBlob[nBlob] - a;

      pSorter->aPoslist = a;
    }

    fts5CsrNewrow(pCsr);
  }

  return rc;
}


................................................................................
      *pn = sqlite3_column_bytes(pCsr->pStmt, iCol+1);
    }
  }
  return rc;
}

static int fts5CsrPoslist(Fts5Cursor *pCsr, int iPhrase, const u8 **pa){
  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
  int n;
  int rc = SQLITE_OK;

  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){

    if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
      Fts5PoslistWriter *aWriter;
      int i;

      aWriter = sqlite3Fts5ExprClearPoslists(pCsr->pExpr);
      if( aWriter==0 ) rc = SQLITE_NOMEM;
      for(i=0; i<pConfig->nCol && rc==SQLITE_OK; i++){
        int n; const char *z;
        rc = fts5ApiColumnText((Fts5Context*)pCsr, i, &z, &n);
        if( rc==SQLITE_OK ){
          rc = sqlite3Fts5ExprPopulatePoslists(
              pConfig, pCsr->pExpr, aWriter, i, z, n
          );
        }
      }
      sqlite3_free(aWriter);
      if( pCsr->pSorter ){
        sqlite3Fts5ExprCheckPoslists(pCsr->pExpr, pCsr->pSorter->iRowid);
      }
    }
    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST);
  }

  if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){
    Fts5Sorter *pSorter = pCsr->pSorter;
    int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
    n = pSorter->aIdx[iPhrase] - i1;
    *pa = &pSorter->aPoslist[i1];
  }else{
    n = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
  }
................................................................................
static int fts5PoslistBlob(sqlite3_context *pCtx, Fts5Cursor *pCsr){
  int i;
  int rc = SQLITE_OK;
  int nPhrase = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
  Fts5Buffer val;

  memset(&val, 0, sizeof(Fts5Buffer));
  switch( ((Fts5Table*)(pCsr->base.pVtab))->pConfig->eDetail ){
    case FTS5_DETAIL_FULL:

      /* Append the varints */
      for(i=0; i<(nPhrase-1); i++){
        const u8 *dummy;
        int nByte = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &dummy);
        sqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
      }

      /* Append the position lists */
      for(i=0; i<nPhrase; i++){
        const u8 *pPoslist;
        int nPoslist;
        nPoslist = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &pPoslist);
        sqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
      }
      break;

    case FTS5_DETAIL_COLUMNS:

      /* Append the varints */
      for(i=0; rc==SQLITE_OK && i<(nPhrase-1); i++){
        const u8 *dummy;
        int nByte;
        rc = sqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &dummy, &nByte);
        sqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
      }

      /* Append the position lists */
      for(i=0; rc==SQLITE_OK && i<nPhrase; i++){
        const u8 *pPoslist;
        int nPoslist;
        rc = sqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &pPoslist, &nPoslist);
        sqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
      }
      break;

    default:
      break;
  }

  sqlite3_result_blob(pCtx, val.p, val.n, sqlite3_free);
  return rc;
}

/* 

    lappend ret $word $iOff [expr $iOff+$nToken]
    incr iOff $nToken
    incr iOff [gobble_whitespace text]
  }

  set ret
}

    lappend ret $word $iOff [expr $iOff+$nToken]
    incr iOff $nToken
    incr iOff [gobble_whitespace text]
  }

  set ret
}

#-------------------------------------------------------------------------
#
proc foreach_detail_mode {prefix script} {
  set saved $::testprefix
  foreach d [list full col none] {
    set s [string map [list %DETAIL% $d] $script]
    set ::detail $d
    set ::testprefix "$prefix-$d"
    reset_db
    uplevel $s
    unset ::detail
  }
  set ::testprefix $saved
}

proc detail_check {} {
  if {$::detail != "none" && $::detail!="full" && $::detail!="col"} {
    error "not in foreach_detail_mode {...} block"
  }
}
proc detail_is_none {} { detail_check ; expr {$::detail == "none"} }
proc detail_is_col {}  { detail_check ; expr {$::detail == "col" } }
proc detail_is_full {} { detail_check ; expr {$::detail == "full"} }

# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
  SELECT name, sql FROM sqlite_master;
} {
  t1 {CREATE VIRTUAL TABLE t1 USING fts5(a, b, c)}
  t1_data {CREATE TABLE 't1_data'(id INTEGER PRIMARY KEY, block BLOB)}
  t1_idx {CREATE TABLE 't1_idx'(segid, term, pgno, PRIMARY KEY(segid, term)) WITHOUT ROWID}
................................................................................
  DROP TABLE t1;
  SELECT name, sql FROM sqlite_master;
} {
}

#-------------------------------------------------------------------------
#
reset_db

do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
}
do_execsql_test 2.1 {
  INSERT INTO t1 VALUES('a b c', 'd e f');
}

do_test 2.2 {
  execsql { SELECT fts5_decode(id, block) FROM t1_data WHERE id==10 }
................................................................................
    SELECT rowid FROM t1 WHERE t1 MATCH $w ORDER BY rowid DESC;
  } {1}
}

do_execsql_test 2.4 {
  INSERT INTO t1(t1) VALUES('integrity-check');
}


#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
}
foreach {i x y} {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
   5  {d b j c g} {f e i b e}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}
foreach {i x y} {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}
foreach {i x y} {
   1  {dd abc abc abc abcde} {aaa dd ddd ddd aab}
   2  {dd aab d aaa b} {abcde c aaa aaa aaa}
   3  {abcde dd b b dd} {abc abc d abc ddddd}
   4  {aaa abcde dddd dddd abcde} {abc b b abcde abc}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 6.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}

do_execsql_test 6.1 {
  INSERT  INTO t1(rowid, x, y) VALUES(22, 'a b c', 'c b a');
  REPLACE INTO t1(rowid, x, y) VALUES(22, 'd e f', 'f e d');
}
................................................................................
}


#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 10.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y);
}
set d10 {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
   5  {d b j c g} {f e i b e}
................................................................................

do_execsql_test 10.4.1 { DELETE FROM t1 }
do_execsql_test 10.4.2 { INSERT INTO t1(t1) VALUES('integrity-check') }

#-------------------------------------------------------------------------
#
do_catchsql_test 11.1 {
  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rank);
} {1 {reserved fts5 column name: rank}}
do_catchsql_test 11.2 {
  CREATE VIRTUAL TABLE rank USING fts5(a, b, c);
} {1 {reserved fts5 table name: rank}}
do_catchsql_test 11.3 {
  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rowid);
} {1 {reserved fts5 column name: rowid}}

#-------------------------------------------------------------------------
#
do_execsql_test 12.1 {
  CREATE VIRTUAL TABLE t2 USING fts5(x,y);
} {}

do_catchsql_test 12.2 {
  SELECT t2 FROM t2 WHERE t2 MATCH '*stuff'
} {1 {unknown special query: stuff}}

do_test 12.3 {
................................................................................
  string is integer $res
} {1}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 13.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x);
  INSERT INTO t1(rowid, x) VALUES(1, 'o n e'), (2, 't w o');
} {}

do_execsql_test 13.2 {
  SELECT rowid FROM t1 WHERE t1 MATCH 'o';
} {1 2}

................................................................................
  SELECT rowid FROM t1 WHERE t1 MATCH '""';
} {}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 14.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  WITH d(x,y) AS (
    SELECT NULL, 'xyz xyz xyz xyz xyz xyz'
    UNION ALL 
    SELECT NULL, 'xyz xyz xyz xyz xyz xyz' FROM d
  )
  INSERT INTO t1 SELECT * FROM d LIMIT 200;
}





do_test 14.2 {
  set nRow 0
  db eval { SELECT * FROM t1 WHERE t1 MATCH 'xyz' } {
    db eval {
      BEGIN;
        CREATE TABLE t2(a, b);
................................................................................
  SELECT funk(), bm25(n1), funk() FROM n1 WHERE n1 MATCH 'a+b+c+d'
} {1 {SQL logic error or missing database}}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 17.1 {
  CREATE VIRTUAL TABLE b2 USING fts5(x);
  INSERT INTO b2 VALUES('a');
  INSERT INTO b2 VALUES('b');
  INSERT INTO b2 VALUES('c');
}

do_test 17.2 {
  set res [list]
  db eval { SELECT * FROM b2 ORDER BY rowid ASC } {
    lappend res [execsql { SELECT * FROM b2 ORDER BY rowid ASC }]
  }
  set res
} {{a b c} {a b c} {a b c}}


reset_db
do_execsql_test 18.1 {
  CREATE VIRTUAL TABLE c2 USING fts5(x, y);
  INSERT INTO c2 VALUES('x x x', 'x x x');
  SELECT rowid FROM c2 WHERE c2 MATCH 'y:x';
} {1}


#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 17.1 {
  CREATE VIRTUAL TABLE uio USING fts5(ttt);
  INSERT INTO uio VALUES(NULL);
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
................................................................................
do_execsql_test 17.9 {
  SELECT min(rowid), max(rowid), count(*) FROM uio WHERE rowid < 10;
} {-9223372036854775808 9 10}

#--------------------------------------------------------------------
#
do_execsql_test 18.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
  CREATE VIRTUAL TABLE t2 USING fts5(c, d);
  INSERT INTO t1 VALUES('abc*', NULL);
  INSERT INTO t2 VALUES(1, 'abcdefg');
}
do_execsql_test 18.2 {
  SELECT t1.rowid, t2.rowid FROM t1, t2 WHERE t2 MATCH t1.a AND t1.rowid = t2.c
} {1 1}
do_execsql_test 18.3 {
................................................................................
} {1 1}

#--------------------------------------------------------------------
# fts5 table in the temp schema.
#
reset_db
do_execsql_test 19.0 {
  CREATE VIRTUAL TABLE temp.t1 USING fts5(x);
  INSERT INTO t1 VALUES('x y z');
  INSERT INTO t1 VALUES('w x 1');
  SELECT rowid FROM t1 WHERE t1 MATCH 'x';
} {1 2}

#--------------------------------------------------------------------
# Test that 6 and 7 byte varints can be read.
#
reset_db
do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE temp.tmp USING fts5(x);
}
set ::ids [list \
  0 [expr 1<<36] [expr 2<<36] [expr 1<<43] [expr 2<<43]
]
do_test 20.1 {
  foreach id $::ids {
    execsql { INSERT INTO tmp(rowid, x) VALUES($id, 'x y z') }
  }
  execsql { SELECT rowid FROM tmp WHERE tmp MATCH 'y' }
} $::ids




finish_test

# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $::testprefix {

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
  SELECT name, sql FROM sqlite_master;
} {
  t1 {CREATE VIRTUAL TABLE t1 USING fts5(a, b, c)}
  t1_data {CREATE TABLE 't1_data'(id INTEGER PRIMARY KEY, block BLOB)}
  t1_idx {CREATE TABLE 't1_idx'(segid, term, pgno, PRIMARY KEY(segid, term)) WITHOUT ROWID}
................................................................................
  DROP TABLE t1;
  SELECT name, sql FROM sqlite_master;
} {
}

#-------------------------------------------------------------------------
#


do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL%);
}
do_execsql_test 2.1 {
  INSERT INTO t1 VALUES('a b c', 'd e f');
}

do_test 2.2 {
  execsql { SELECT fts5_decode(id, block) FROM t1_data WHERE id==10 }
................................................................................
    SELECT rowid FROM t1 WHERE t1 MATCH $w ORDER BY rowid DESC;
  } {1}
}

do_execsql_test 2.4 {
  INSERT INTO t1(t1) VALUES('integrity-check');
}


#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL%);
}
foreach {i x y} {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
   5  {d b j c g} {f e i b e}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}
foreach {i x y} {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}
foreach {i x y} {
   1  {dd abc abc abc abcde} {aaa dd ddd ddd aab}
   2  {dd aab d aaa b} {abcde c aaa aaa aaa}
   3  {abcde dd b b dd} {abc abc d abc ddddd}
   4  {aaa abcde dddd dddd abcde} {abc b b abcde abc}
................................................................................
  if {[set_test_counter errors]} break
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 6.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}

do_execsql_test 6.1 {
  INSERT  INTO t1(rowid, x, y) VALUES(22, 'a b c', 'c b a');
  REPLACE INTO t1(rowid, x, y) VALUES(22, 'd e f', 'f e d');
}
................................................................................
}


#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 10.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL%);
}
set d10 {
   1  {g f d b f} {h h e i a}
   2  {f i g j e} {i j c f f}
   3  {e e i f a} {e h f d f}
   4  {h j f j i} {h a c f j}
   5  {d b j c g} {f e i b e}
................................................................................

do_execsql_test 10.4.1 { DELETE FROM t1 }
do_execsql_test 10.4.2 { INSERT INTO t1(t1) VALUES('integrity-check') }

#-------------------------------------------------------------------------
#
do_catchsql_test 11.1 {
  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rank, detail=%DETAIL%);
} {1 {reserved fts5 column name: rank}}
do_catchsql_test 11.2 {
  CREATE VIRTUAL TABLE rank USING fts5(a, b, c, detail=%DETAIL%);
} {1 {reserved fts5 table name: rank}}
do_catchsql_test 11.3 {
  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rowid, detail=%DETAIL%);
} {1 {reserved fts5 column name: rowid}}

#-------------------------------------------------------------------------
#
do_execsql_test 12.1 {
  CREATE VIRTUAL TABLE t2 USING fts5(x,y, detail=%DETAIL%);
} {}

do_catchsql_test 12.2 {
  SELECT t2 FROM t2 WHERE t2 MATCH '*stuff'
} {1 {unknown special query: stuff}}

do_test 12.3 {
................................................................................
  string is integer $res
} {1}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 13.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO t1(rowid, x) VALUES(1, 'o n e'), (2, 't w o');
} {}

do_execsql_test 13.2 {
  SELECT rowid FROM t1 WHERE t1 MATCH 'o';
} {1 2}

................................................................................
  SELECT rowid FROM t1 WHERE t1 MATCH '""';
} {}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 14.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  WITH d(x,y) AS (
    SELECT NULL, 'xyz xyz xyz xyz xyz xyz'
    UNION ALL 
    SELECT NULL, 'xyz xyz xyz xyz xyz xyz' FROM d
  )
  INSERT INTO t1 SELECT * FROM d LIMIT 200;
}

do_execsql_test 15.x {
  INSERT INTO t1(t1) VALUES('integrity-check');
}

do_test 14.2 {
  set nRow 0
  db eval { SELECT * FROM t1 WHERE t1 MATCH 'xyz' } {
    db eval {
      BEGIN;
        CREATE TABLE t2(a, b);
................................................................................
  SELECT funk(), bm25(n1), funk() FROM n1 WHERE n1 MATCH 'a+b+c+d'
} {1 {SQL logic error or missing database}}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 17.1 {
  CREATE VIRTUAL TABLE b2 USING fts5(x, detail=%DETAIL%);
  INSERT INTO b2 VALUES('a');
  INSERT INTO b2 VALUES('b');
  INSERT INTO b2 VALUES('c');
}

do_test 17.2 {
  set res [list]
  db eval { SELECT * FROM b2 ORDER BY rowid ASC } {
    lappend res [execsql { SELECT * FROM b2 ORDER BY rowid ASC }]
  }
  set res
} {{a b c} {a b c} {a b c}}

if {[string match n* %DETAIL%]==0} {
  reset_db
  do_execsql_test 17.3 {
    CREATE VIRTUAL TABLE c2 USING fts5(x, y, detail=%DETAIL%);
    INSERT INTO c2 VALUES('x x x', 'x x x');
    SELECT rowid FROM c2 WHERE c2 MATCH 'y:x';
  } {1}
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 17.1 {
  CREATE VIRTUAL TABLE uio USING fts5(ttt, detail=%DETAIL%);
  INSERT INTO uio VALUES(NULL);
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
  INSERT INTO uio SELECT NULL FROM uio;
................................................................................
do_execsql_test 17.9 {
  SELECT min(rowid), max(rowid), count(*) FROM uio WHERE rowid < 10;
} {-9223372036854775808 9 10}

#--------------------------------------------------------------------
#
do_execsql_test 18.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
  CREATE VIRTUAL TABLE t2 USING fts5(c, d, detail=%DETAIL%);
  INSERT INTO t1 VALUES('abc*', NULL);
  INSERT INTO t2 VALUES(1, 'abcdefg');
}
do_execsql_test 18.2 {
  SELECT t1.rowid, t2.rowid FROM t1, t2 WHERE t2 MATCH t1.a AND t1.rowid = t2.c
} {1 1}
do_execsql_test 18.3 {
................................................................................
} {1 1}

#--------------------------------------------------------------------
# fts5 table in the temp schema.
#
reset_db
do_execsql_test 19.0 {
  CREATE VIRTUAL TABLE temp.t1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO t1 VALUES('x y z');
  INSERT INTO t1 VALUES('w x 1');
  SELECT rowid FROM t1 WHERE t1 MATCH 'x';
} {1 2}

#--------------------------------------------------------------------
# Test that 6 and 7 byte varints can be read.
#
reset_db
do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE temp.tmp USING fts5(x, detail=%DETAIL%);
}
set ::ids [list \
  0 [expr 1<<36] [expr 2<<36] [expr 1<<43] [expr 2<<43]
]
do_test 20.1 {
  foreach id $::ids {
    execsql { INSERT INTO tmp(rowid, x) VALUES($id, 'x y z') }
  }
  execsql { SELECT rowid FROM tmp WHERE tmp MATCH 'y' }
} $::ids

}


finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
  INSERT INTO t1 VALUES('hello', 'world');
  INSERT INTO t1 VALUES('one two', 'three four');
  INSERT INTO t1(rowid, a, b) VALUES(45, 'forty', 'five');
}

do_execsql_test 1.1 {
  SELECT * FROM t1 ORDER BY rowid DESC;
................................................................................
  SELECT * FROM t1 WHERE rowid=1.99;
} {}

#-------------------------------------------------------------------------

reset_db
do_execsql_test 2.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  INSERT INTO t1 VALUES('one');
  INSERT INTO t1 VALUES('two');
  INSERT INTO t1 VALUES('three');
}

do_catchsql_test 2.2 {
................................................................................
}

#-------------------------------------------------------------------------
# Documents with more than 2M tokens.
#

do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE s1 USING fts5(x);
}
foreach {tn doc} [list \
  1 [string repeat {a x } 1500000]       \
  2 "[string repeat {a a } 1500000] x"   \
] {
  do_execsql_test 4.$tn { INSERT INTO s1 VALUES($doc) }
}

do_execsql_test 4.3 {
  SELECT rowid FROM s1 WHERE s1 MATCH 'x'
} {1 2}


do_execsql_test 4.4 {
  SELECT rowid FROM s1 WHERE s1 MATCH '"a x"'





} {1 2}

#-------------------------------------------------------------------------
# Check that a special case of segment promotion works. The case is where
# a new segment is written to level L, but the oldest segment within level
# (L-2) is larger than it.
#
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE s2 USING fts5(x);
  INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
  INSERT INTO s2(s2, rank) VALUES('automerge', 0);
}

proc rnddoc {n} {
  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
  set doc [list]
................................................................................
} {8 0 0}

# Test also the other type of segment promotion - when a new segment is written
# that is larger than segments immediately following it.
do_test 5.3 {
  execsql {
    DROP TABLE s2;
    CREATE VIRTUAL TABLE s2 USING fts5(x);
    INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
    INSERT INTO s2(s2, rank) VALUES('automerge', 0);
  }

  for {set i 1} {$i <= 16} {incr i} {
    execsql { INSERT INTO s2 VALUES(rnddoc(5)) }
  }
................................................................................
  execsql { INSERT INTO s2 VALUES(rnddoc(160)) }
  fts5_level_segs s2
} {2 0}

#-------------------------------------------------------------------------
#
do_execsql_test 6.0 {
  CREATE VIRTUAL TABLE s3 USING fts5(x);
  BEGIN;
    INSERT INTO s3 VALUES('a b c');
    INSERT INTO s3 VALUES('A B C');
}

do_execsql_test 6.1.1 {
  SELECT rowid FROM s3 WHERE s3 MATCH 'a'
................................................................................
    ROLLBACK;
  }
} {}

#-------------------------------------------------------------------------
#
set doc [string repeat "a b c " 500]
breakpoint
do_execsql_test 7.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
  INSERT INTO x1 VALUES($doc);
}




finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
  INSERT INTO t1 VALUES('hello', 'world');
  INSERT INTO t1 VALUES('one two', 'three four');
  INSERT INTO t1(rowid, a, b) VALUES(45, 'forty', 'five');
}

do_execsql_test 1.1 {
  SELECT * FROM t1 ORDER BY rowid DESC;
................................................................................
  SELECT * FROM t1 WHERE rowid=1.99;
} {}

#-------------------------------------------------------------------------

reset_db
do_execsql_test 2.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  INSERT INTO t1 VALUES('one');
  INSERT INTO t1 VALUES('two');
  INSERT INTO t1 VALUES('three');
}

do_catchsql_test 2.2 {
................................................................................
}

#-------------------------------------------------------------------------
# Documents with more than 2M tokens.
#

do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE s1 USING fts5(x, detail=%DETAIL%);
}
foreach {tn doc} [list \
  1 [string repeat {a x } 1500000]       \
  2 "[string repeat {a a } 1500000] x"   \
] {
  do_execsql_test 4.$tn { INSERT INTO s1 VALUES($doc) }
}

do_execsql_test 4.3 {
  SELECT rowid FROM s1 WHERE s1 MATCH 'x'
} {1 2}

if {[detail_is_full]} {
  do_execsql_test 4.4 {
    SELECT rowid FROM s1 WHERE s1 MATCH '"a x"'
  } {1 2}
}

do_execsql_test 4.5 {
  SELECT rowid FROM s1 WHERE s1 MATCH 'a x'
} {1 2}

#-------------------------------------------------------------------------
# Check that a special case of segment promotion works. The case is where
# a new segment is written to level L, but the oldest segment within level
# (L-2) is larger than it.
#
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE s2 USING fts5(x, detail=%DETAIL%);
  INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
  INSERT INTO s2(s2, rank) VALUES('automerge', 0);
}

proc rnddoc {n} {
  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
  set doc [list]
................................................................................
} {8 0 0}

# Test also the other type of segment promotion - when a new segment is written
# that is larger than segments immediately following it.
do_test 5.3 {
  execsql {
    DROP TABLE s2;
    CREATE VIRTUAL TABLE s2 USING fts5(x, detail=%DETAIL%);
    INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
    INSERT INTO s2(s2, rank) VALUES('automerge', 0);
  }

  for {set i 1} {$i <= 16} {incr i} {
    execsql { INSERT INTO s2 VALUES(rnddoc(5)) }
  }
................................................................................
  execsql { INSERT INTO s2 VALUES(rnddoc(160)) }
  fts5_level_segs s2
} {2 0}

#-------------------------------------------------------------------------
#
do_execsql_test 6.0 {
  CREATE VIRTUAL TABLE s3 USING fts5(x, detail=%DETAIL%);
  BEGIN;
    INSERT INTO s3 VALUES('a b c');
    INSERT INTO s3 VALUES('A B C');
}

do_execsql_test 6.1.1 {
  SELECT rowid FROM s3 WHERE s3 MATCH 'a'
................................................................................
    ROLLBACK;
  }
} {}

#-------------------------------------------------------------------------
#
set doc [string repeat "a b c " 500]

do_execsql_test 7.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
  INSERT INTO x1 VALUES($doc);
}

} ;# foreach_detail_mode...


finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



set data {
    0   {p o q e z k z p n f y u z y n y}   {l o o l v v k}
    1   {p k h h p y l l h i p v n}         {p p l u r i f a j g e r r x w}
    2   {l s z j k i m p s}                 {l w e j t j e e i t w r o p o}
    3   {x g y m y m h p}                   {k j j b r e y y a k y}
    4   {q m a i y i z}                     {o w a g k x g j m w e u k}
    5   {k o a w y b s z}                   {s g l m m l m g p}
................................................................................
  set res
}

#
# End of test code
#-------------------------------------------------------------------------

if 0 {

foreach {tn2 sql} {
  1  {}
  2  {BEGIN}
} {
  reset_db
  fts5_aux_test_functions db

  do_execsql_test 1.$tn2.0 {
    CREATE VIRTUAL TABLE xx USING fts5(x,y);
    INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
  }

  execsql $sql

  do_test 1.$tn2.1.1 {
    foreach {id x y} $data {
      execsql { INSERT INTO xx(rowid, x, y) VALUES($id, $x, $y) }
    }
    execsql { INSERT INTO xx(xx) VALUES('integrity-check') }
  } {}


  #-------------------------------------------------------------------------
  # Test phrase queries.

  #
  foreach {tn phrase} {


    1 "o"
    2 "b q"
    3 "e a e"
    4 "m d g q q b k b w f q q p p"
    5 "l o o l v v k"
    6 "a"
    7 "b"
    8 "c"
    9 "no"
    10 "L O O L V V K"

  } {
    set expr "\"$phrase\""
    set res [poslist_data 1 $expr]





    do_execsql_test 1.$tn2.1.2.$tn.p.[llength $res] { 



















      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.1.2.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Test some AND and OR queries.
  #
  foreach {tn expr} {
    1.1 "a   AND b"
    1.2 "a+b AND c"
    1.3 "d+c AND u"
    1.4 "d+c AND u+d"

    2.1 "a   OR b"
    2.2 "a+b OR c"
    2.3 "d+c OR u"
    2.4 "d+c OR u+d"

    3.1 { a AND b AND c }
  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.2.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.2.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Queries on a specific column.
  #
................................................................................

    4.1 {{"x" "y"}:a}
    4.2 {{"y" x}:a}
    4.3 {{x "x"}:b}
    4.4 {{"y" y}:b}
  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.3.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.3.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Some NEAR queries.
  #
................................................................................
    5 { NEAR(r c, 0) }
    6 { NEAR(a b c) }
    7 { NEAR(a b c, 8) }
    8  { x : NEAR(r c) }
    9  { y : NEAR(r c) }
  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.4.1.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.4.1.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  do_test $tn2.4.1  { nearset {{a b c}} -- a } {0.0.0}
  do_test $tn2.4.2  { nearset {{a b c}} -- c } {0.0.2}

  foreach {tn expr tclexpr} {
    1 {a b} {AND [N $x -- {a}] [N $x -- {b}]}
  } {
    do_execsql_test 1.$tn2.5.$tn {
      SELECT fts5_expr_tcl($expr, 'N $x')
    } [list $tclexpr]
  }

  #-------------------------------------------------------------------------
  #
  do_execsql_test 1.$tn2.6.integrity {
    INSERT INTO xx(xx) VALUES('integrity-check');
  }
  #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM xx_data} {puts $r}
  foreach {bAsc sql} {
    1 {SELECT rowid FROM xx WHERE xx MATCH $expr}
    0 {SELECT rowid FROM xx WHERE xx MATCH $expr ORDER BY rowid DESC}
  } {
................................................................................
      15 { a OR b AND c }
      16 { c AND b OR a }
      17 { c AND (b OR a) }
      18 { c NOT (b OR a) }
      19 { c NOT b OR a AND d }
    } {
      set res [poslist_data 0 $expr $bAsc]
      do_execsql_test 1.$tn2.6.$bAsc.$tn.[llength $res] $sql $res
    }
  }
}



do_execsql_test 2.1 {
  SELECT fts5_expr_tcl('a AND b');
} {{AND [nearset -- {a}] [nearset -- {b}]}}


}
#set data [lrange $data 0 5]

# Some tests for detail=col tables and detail=none.
#
foreach {tn2 sql} {
  1  {
    CREATE VIRTUAL TABLE xx USING fts5(x, y, detail=col);
  }
  2  {
    CREATE VIRTUAL TABLE xx USING fts5(x, y, detail=col);
    BEGIN;
  }
  3  {
    CREATE VIRTUAL TABLE xx USING fts5(x, y, detail=none);
    BEGIN;
  }
  4  {
    CREATE VIRTUAL TABLE xx USING fts5(x, y, detail=none);
  }
} {
  reset_db
  fts5_aux_test_functions db

  execsql $sql

  do_execsql_test 3.$tn2.0 {
    INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
  }

  do_test 3.$tn2.1.1 {
    foreach {id x y} $data {
      execsql { INSERT INTO xx(rowid, x, y) VALUES($id, $x, $y) }
    }
    execsql { INSERT INTO xx(xx) VALUES('integrity-check') }
  } {}

  foreach {tn q} {
    1 "o" 2 "b" 3 "e" 4 "m" 5 "l" 6 "a" 7 "b" 8 "c" 9 "no" 10 "L"
    11 "o a" 12 "c AND d" 13 "o OR a" 14 "c OR d"
  } {
    set res [poslist_data 1 $q]
    do_execsql_test 3.$tn2.1.2.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $q
    } $res

    set res [collist_data $q]
    do_execsql_test 3.$tn2.1.2.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $q
    } $res
  }

}

finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

set data {
    0   {p o q e z k z p n f y u z y n y}   {l o o l v v k}
    1   {p k h h p y l l h i p v n}         {p p l u r i f a j g e r r x w}
    2   {l s z j k i m p s}                 {l w e j t j e e i t w r o p o}
    3   {x g y m y m h p}                   {k j j b r e y y a k y}
    4   {q m a i y i z}                     {o w a g k x g j m w e u k}
    5   {k o a w y b s z}                   {s g l m m l m g p}
................................................................................
  set res
}

#
# End of test code
#-------------------------------------------------------------------------



foreach {tn2 sql} {
  1  {}
  2  {BEGIN}
} {
  reset_db
  fts5_aux_test_functions db

  do_execsql_test 1.$tn2.0 {
    CREATE VIRTUAL TABLE xx USING fts5(x,y, detail=%DETAIL%);
    INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
  }

  execsql $sql

  do_test 1.$tn2.1.1 {
    foreach {id x y} $data {
      execsql { INSERT INTO xx(rowid, x, y) VALUES($id, $x, $y) }
    }
    execsql { INSERT INTO xx(xx) VALUES('integrity-check') }
  } {}


  #-------------------------------------------------------------------------

  # The following work with all detail= modes.
  #
  foreach {tn expr} {
    1 "a   AND b"
    2 "a   OR b"
    3 "o"
    4 "b q"
    5 "e a e"
    6 "m d g q q b k b w f q q p p"
    7 "l o o l v v k"
    8 "a"
    9 "b"
    10 "c"
    11 "no"
    12 "L O O L V V K"
    13 "a AND b AND c"
  } {

    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.1.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.1.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  if {[detail_is_none] || [detail_is_col]} continue

  #-------------------------------------------------------------------------
  # Test phrase queries.
  #
  foreach {tn expr} {
    1 "b + q"
    2 "e + a + e"
    3 "m + d + g + q + q + b + k + b + w + f + q + q + p + p"
    4 "l + o + o + l + v + v + k"
    5 "L + O + O + L + V + V + K"
  } {
    set res [poslist_data 1 $expr]

    do_execsql_test 1.$tn2.2.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.2.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Test some AND and OR queries.
  #
  foreach {tn expr} {

    1.1 "a+b AND c"
    1.2 "d+c AND u"
    1.3 "d+c AND u+d"


    2.1 "a+b OR c"
    2.2 "d+c OR u"
    2.3 "d+c OR u+d"


  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.3.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.3.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Queries on a specific column.
  #
................................................................................

    4.1 {{"x" "y"}:a}
    4.2 {{"y" x}:a}
    4.3 {{x "x"}:b}
    4.4 {{"y" y}:b}
  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.4.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.4.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  #-------------------------------------------------------------------------
  # Some NEAR queries.
  #
................................................................................
    5 { NEAR(r c, 0) }
    6 { NEAR(a b c) }
    7 { NEAR(a b c, 8) }
    8  { x : NEAR(r c) }
    9  { y : NEAR(r c) }
  } {
    set res [poslist_data 1 $expr]
    do_execsql_test 1.$tn2.5.1.$tn.p.[llength $res] { 
      SELECT rowid, fts5_test_poslist(xx) FROM xx WHERE xx match $expr
    } $res

    set res [collist_data $expr]
    do_execsql_test 1.$tn2.5.1.$tn.c.[llength $res] { 
      SELECT rowid, fts5_test_collist(xx) FROM xx WHERE xx match $expr
    } $res
  }

  do_test $tn2.4.1  { nearset {{a b c}} -- a } {0.0.0}
  do_test $tn2.4.2  { nearset {{a b c}} -- c } {0.0.2}

  foreach {tn expr tclexpr} {
    1 {a b} {AND [N $x -- {a}] [N $x -- {b}]}
  } {
    do_execsql_test 1.$tn2.6.$tn {
      SELECT fts5_expr_tcl($expr, 'N $x')
    } [list $tclexpr]
  }

  #-------------------------------------------------------------------------
  #
  do_execsql_test 1.$tn2.7.integrity {
    INSERT INTO xx(xx) VALUES('integrity-check');
  }
  #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM xx_data} {puts $r}
  foreach {bAsc sql} {
    1 {SELECT rowid FROM xx WHERE xx MATCH $expr}
    0 {SELECT rowid FROM xx WHERE xx MATCH $expr ORDER BY rowid DESC}
  } {
................................................................................
      15 { a OR b AND c }
      16 { c AND b OR a }
      17 { c AND (b OR a) }
      18 { c NOT (b OR a) }
      19 { c NOT b OR a AND d }
    } {
      set res [poslist_data 0 $expr $bAsc]
      do_execsql_test 1.$tn2.7.$bAsc.$tn.[llength $res] $sql $res
    }
  }
}

}

do_execsql_test 2.1 {
  SELECT fts5_expr_tcl('a AND b');
} {{AND [nearset -- {a}] [nearset -- {b}]}}

finish_test






















































finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}





do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE yy USING fts5(x, y);
  INSERT INTO yy VALUES('Changes the result to be', 'the list of all matching');
  INSERT INTO yy VALUES('indices (or all  matching', 'values if -inline is');
  INSERT INTO yy VALUES('specified as  well.) If', 'indices are returned, the');
} {}

foreach {tn match res} {
  1 {c*} {1}
................................................................................
  do_execsql_test 1.$tn {
    SELECT rowid FROM yy WHERE yy MATCH $match
  } $res
}

foreach {T create} {
  2 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }
  
  3 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix=1,2,3,4,5);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }

  4 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    BEGIN;
  }
  
  5 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix=1,2,3,4,5);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    BEGIN;
  }

  6 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=col);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }

  7 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=col, prefix="1,2,3,4,5");
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }

  8 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=col, prefix="1,2,3,4,5");
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    BEGIN;
  }

} {

  do_test $T.1 { 
................................................................................
      set n [llength $res]
      if {$T==5} breakpoint 
      do_execsql_test $T.$bAsc.$tn.$n $sql $res
    }
  }

  catchsql COMMIT


}

finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

if {[detail_is_none]==0} continue

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE yy USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO yy VALUES('Changes the result to be', 'the list of all matching');
  INSERT INTO yy VALUES('indices (or all  matching', 'values if -inline is');
  INSERT INTO yy VALUES('specified as  well.) If', 'indices are returned, the');
} {}

foreach {tn match res} {
  1 {c*} {1}
................................................................................
  do_execsql_test 1.$tn {
    SELECT rowid FROM yy WHERE yy MATCH $match
  } $res
}

foreach {T create} {
  2 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }
  
  3 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix="1,2,3,4", detail=%DETAIL%);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  }

  4 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    BEGIN;
  }
  
  5 {
    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix="1,2,3,4", detail=%DETAIL%);
















    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    BEGIN;
  }

} {

  do_test $T.1 { 
................................................................................
      set n [llength $res]
      if {$T==5} breakpoint 
      do_execsql_test $T.$bAsc.$tn.$n $sql $res
    }
  }

  catchsql COMMIT
}

}

finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}

do_execsql_test 1.1 {
  INSERT INTO t1 VALUES('hello', 'world');
  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
} {1}
................................................................................
} {1 2 4}

fts5_aux_test_functions db

#-------------------------------------------------------------------------
# 
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t2 USING fts5(x, y);
  INSERT INTO t2 VALUES('u t l w w m s', 'm f m o l t k o p e');
  INSERT INTO t2 VALUES('f g q e l n d m z x q', 'z s i i i m f w w f n g p');
}

do_execsql_test 2.1 {
  SELECT rowid, fts5_test_poslist(t2) FROM t2 
  WHERE t2 MATCH 'm' ORDER BY rowid;
................................................................................
  SELECT rowid, fts5_test_poslist(t2) FROM t2 
  WHERE t2 MATCH 'u OR q' ORDER BY rowid;
} {
  1 {0.0.0}
  2 {1.0.2 1.0.10}
}


do_execsql_test 2.3 {
  SELECT rowid, fts5_test_poslist(t2) FROM t2 
  WHERE t2 MATCH 'y:o' ORDER BY rowid;
} {
  1 {0.1.3 0.1.7}

}

#-------------------------------------------------------------------------
# 
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t3 USING fts5(x, y);
  INSERT INTO t3 VALUES( 'j f h o x x a z g b a f a m i b', 'j z c z y x w t');
  INSERT INTO t3 VALUES( 'r c', '');
}


do_execsql_test 3.1 {
  SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(a b)';
} {
  1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15}
}

do_execsql_test 3.2 {
  SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(r c)';
} {
  2 {0.0.0 1.0.1}

}

do_execsql_test 3.3 {
  INSERT INTO t3 
  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
  SELECT rowid, fts5_test_poslist(t3) 
  FROM t3 WHERE t3 MATCH 'a OR b AND c';
................................................................................
  1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15 2.1.2}
  3 0.0.5 
}

#-------------------------------------------------------------------------
# 
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t4 USING fts5(x, y);
  INSERT INTO t4 
  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
}

do_execsql_test 4.1 {
  SELECT rowid, fts5_test_poslist(t4) FROM t4 WHERE t4 MATCH 'a OR b AND c';
} {
................................................................................
#-------------------------------------------------------------------------
# Test that the xColumnSize() and xColumnAvgsize() APIs work.
#
reset_db
fts5_aux_test_functions db

do_execsql_test 5.1 {
  CREATE VIRTUAL TABLE t5 USING fts5(x, y);
  INSERT INTO t5 VALUES('a b c d', 'e f g h i j');
  INSERT INTO t5 VALUES('', 'a');
  INSERT INTO t5 VALUES('a', '');
}
do_execsql_test 5.2 {
  SELECT rowid, fts5_test_columnsize(t5) FROM t5 WHERE t5 MATCH 'a'
  ORDER BY rowid DESC;
................................................................................

#-------------------------------------------------------------------------
# Test the xTokenize() API
#
reset_db
fts5_aux_test_functions db
do_execsql_test 6.1 {
  CREATE VIRTUAL TABLE t6 USING fts5(x, y);
  INSERT INTO t6 VALUES('There are more', 'things in heaven and earth');
  INSERT INTO t6 VALUES(', Horatio, Than are', 'dreamt of in your philosophy.');
}

do_execsql_test 6.2 {
  SELECT rowid, fts5_test_tokenize(t6) FROM t6 WHERE t6 MATCH 't*'
} {
................................................................................

#-------------------------------------------------------------------------
# Test the xQueryPhrase() API
#
reset_db
fts5_aux_test_functions db
do_execsql_test 7.1 {
  CREATE VIRTUAL TABLE t7 USING fts5(x, y);
}
do_test 7.2 {
  foreach {x y} {
    {q i b w s a a e l o} {i b z a l f p t e u}
    {b a z t a l o x d i} {b p a d b f h d w y}
    {z m h n p p u i e g} {v h d v b x j j c z}
    {a g i m v a u c b i} {p k s o t l r t b m}
................................................................................
#  SELECT rowid, bm25debug(t7) FROM t7 WHERE t7 MATCH 'a';
#} {5 5 5 5}
#

#-------------------------------------------------------------------------
#
do_test 8.1 {
  execsql { CREATE VIRTUAL TABLE t8 USING fts5(x, y) }
  foreach {rowid x y} {
     0 {A o}   {o o o C o o o o o o o o}
     1 {o o B} {o o o C C o o o o o o o}
     2 {A o o} {o o o o D D o o o o o o}
     3 {o B}   {o o o o o D o o o o o o}
     4 {E o G} {H o o o o o o o o o o o}
     5 {F o G} {I o J o o o o o o o o o}
................................................................................
  2 {a OR b}       2
  3 {a OR b OR c}  3
  4 {NEAR(a b)}    2
} {
  do_execsql_test 9.2.$tn {
    SELECT fts5_test_phrasecount(t9) FROM t9 WHERE t9 MATCH $q LIMIT 1
  } $cnt


}

finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
}

do_execsql_test 1.1 {
  INSERT INTO t1 VALUES('hello', 'world');
  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
} {1}
................................................................................
} {1 2 4}

fts5_aux_test_functions db

#-------------------------------------------------------------------------
# 
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t2 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t2 VALUES('u t l w w m s', 'm f m o l t k o p e');
  INSERT INTO t2 VALUES('f g q e l n d m z x q', 'z s i i i m f w w f n g p');
}

do_execsql_test 2.1 {
  SELECT rowid, fts5_test_poslist(t2) FROM t2 
  WHERE t2 MATCH 'm' ORDER BY rowid;
................................................................................
  SELECT rowid, fts5_test_poslist(t2) FROM t2 
  WHERE t2 MATCH 'u OR q' ORDER BY rowid;
} {
  1 {0.0.0}
  2 {1.0.2 1.0.10}
}

if {[detail_is_full]} {
  do_execsql_test 2.3 {
    SELECT rowid, fts5_test_poslist(t2) FROM t2 
      WHERE t2 MATCH 'y:o' ORDER BY rowid;
  } {
    1 {0.1.3 0.1.7}
  }
}

#-------------------------------------------------------------------------
# 
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t3 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t3 VALUES( 'j f h o x x a z g b a f a m i b', 'j z c z y x w t');
  INSERT INTO t3 VALUES( 'r c', '');
}

if {[detail_is_full]} {
  do_execsql_test 3.1 {
    SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(a b)';
  } {
    1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15}
  }

  do_execsql_test 3.2 {
    SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(r c)';
  } {
    2 {0.0.0 1.0.1}
  }
}

do_execsql_test 3.3 {
  INSERT INTO t3 
  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
  SELECT rowid, fts5_test_poslist(t3) 
  FROM t3 WHERE t3 MATCH 'a OR b AND c';
................................................................................
  1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15 2.1.2}
  3 0.0.5 
}

#-------------------------------------------------------------------------
# 
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t4 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t4 
  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
}

do_execsql_test 4.1 {
  SELECT rowid, fts5_test_poslist(t4) FROM t4 WHERE t4 MATCH 'a OR b AND c';
} {
................................................................................
#-------------------------------------------------------------------------
# Test that the xColumnSize() and xColumnAvgsize() APIs work.
#
reset_db
fts5_aux_test_functions db

do_execsql_test 5.1 {
  CREATE VIRTUAL TABLE t5 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t5 VALUES('a b c d', 'e f g h i j');
  INSERT INTO t5 VALUES('', 'a');
  INSERT INTO t5 VALUES('a', '');
}
do_execsql_test 5.2 {
  SELECT rowid, fts5_test_columnsize(t5) FROM t5 WHERE t5 MATCH 'a'
  ORDER BY rowid DESC;
................................................................................

#-------------------------------------------------------------------------
# Test the xTokenize() API
#
reset_db
fts5_aux_test_functions db
do_execsql_test 6.1 {
  CREATE VIRTUAL TABLE t6 USING fts5(x, y, detail=%DETAIL%);
  INSERT INTO t6 VALUES('There are more', 'things in heaven and earth');
  INSERT INTO t6 VALUES(', Horatio, Than are', 'dreamt of in your philosophy.');
}

do_execsql_test 6.2 {
  SELECT rowid, fts5_test_tokenize(t6) FROM t6 WHERE t6 MATCH 't*'
} {
................................................................................

#-------------------------------------------------------------------------
# Test the xQueryPhrase() API
#
reset_db
fts5_aux_test_functions db
do_execsql_test 7.1 {
  CREATE VIRTUAL TABLE t7 USING fts5(x, y, detail=%DETAIL%);
}
do_test 7.2 {
  foreach {x y} {
    {q i b w s a a e l o} {i b z a l f p t e u}
    {b a z t a l o x d i} {b p a d b f h d w y}
    {z m h n p p u i e g} {v h d v b x j j c z}
    {a g i m v a u c b i} {p k s o t l r t b m}
................................................................................
#  SELECT rowid, bm25debug(t7) FROM t7 WHERE t7 MATCH 'a';
#} {5 5 5 5}
#

#-------------------------------------------------------------------------
#
do_test 8.1 {
  execsql { CREATE VIRTUAL TABLE t8 USING fts5(x, y, detail=%DETAIL%) }
  foreach {rowid x y} {
     0 {A o}   {o o o C o o o o o o o o}
     1 {o o B} {o o o C C o o o o o o o}
     2 {A o o} {o o o o D D o o o o o o}
     3 {o B}   {o o o o o D o o o o o o}
     4 {E o G} {H o o o o o o o o o o o}
     5 {F o G} {I o J o o o o o o o o o}
................................................................................
  2 {a OR b}       2
  3 {a OR b OR c}  3
  4 {NEAR(a b)}    2
} {
  do_execsql_test 9.2.$tn {
    SELECT fts5_test_phrasecount(t9) FROM t9 WHERE t9 MATCH $q LIMIT 1
  } $cnt
}

}

finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y);
}

proc do_snippet_test {tn doc match res} {

  uplevel #0 [list set v1 $doc]
  uplevel #0 [list set v2 $match]

................................................................................
  7.4 {o o o X o o X o o} {...o [X] o o [X] o o}
  7.5 {o o o o X o o X o} {...o o [X] o o [X] o}
  7.6 {o o o o o X o o X} {...o o o [X] o o [X]}
} {
  do_snippet_test 1.$tn $doc X $res
}


foreach {tn doc res} {
  1.1 {X Y o o o o o} {[X Y] o o o o o}
  1.2 {o X Y o o o o} {o [X Y] o o o o}
  1.3 {o o X Y o o o} {o o [X Y] o o o}
  1.4 {o o o X Y o o} {o o o [X Y] o o}
  1.5 {o o o o X Y o} {o o o o [X Y] o}
  1.6 {o o o o o X Y} {o o o o o [X Y]}

  2.1 {X Y o o o o o o} {[X Y] o o o o o...}
  2.2 {o X Y o o o o o} {o [X Y] o o o o...}
  2.3 {o o X Y o o o o} {o o [X Y] o o o...}
  2.4 {o o o X Y o o o} {...o o [X Y] o o o}
  2.5 {o o o o X Y o o} {...o o o [X Y] o o}
  2.6 {o o o o o X Y o} {...o o o o [X Y] o}
  2.7 {o o o o o o X Y} {...o o o o o [X Y]}

  3.1 {X Y o o o o o o o} {[X Y] o o o o o...}
  3.2 {o X Y o o o o o o} {o [X Y] o o o o...}
  3.3 {o o X Y o o o o o} {o o [X Y] o o o...}
  3.4 {o o o X Y o o o o} {...o o [X Y] o o o...}
  3.5 {o o o o X Y o o o} {...o o [X Y] o o o}
  3.6 {o o o o o X Y o o} {...o o o [X Y] o o}
  3.7 {o o o o o o X Y o} {...o o o o [X Y] o}
  3.8 {o o o o o o o X Y} {...o o o o o [X Y]}

} {
  do_snippet_test 2.$tn $doc "X + Y" $res
}




finish_test

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL%);
}

proc do_snippet_test {tn doc match res} {

  uplevel #0 [list set v1 $doc]
  uplevel #0 [list set v2 $match]

................................................................................
  7.4 {o o o X o o X o o} {...o [X] o o [X] o o}
  7.5 {o o o o X o o X o} {...o o [X] o o [X] o}
  7.6 {o o o o o X o o X} {...o o o [X] o o [X]}
} {
  do_snippet_test 1.$tn $doc X $res
}

if {[detail_is_full]} {
  foreach {tn doc res} {
    1.1 {X Y o o o o o} {[X Y] o o o o o}
    1.2 {o X Y o o o o} {o [X Y] o o o o}
    1.3 {o o X Y o o o} {o o [X Y] o o o}
    1.4 {o o o X Y o o} {o o o [X Y] o o}
    1.5 {o o o o X Y o} {o o o o [X Y] o}
    1.6 {o o o o o X Y} {o o o o o [X Y]}

    2.1 {X Y o o o o o o} {[X Y] o o o o o...}
    2.2 {o X Y o o o o o} {o [X Y] o o o o...}
    2.3 {o o X Y o o o o} {o o [X Y] o o o...}
    2.4 {o o o X Y o o o} {...o o [X Y] o o o}
    2.5 {o o o o X Y o o} {...o o o [X Y] o o}
    2.6 {o o o o o X Y o} {...o o o o [X Y] o}
    2.7 {o o o o o o X Y} {...o o o o o [X Y]}

    3.1 {X Y o o o o o o o} {[X Y] o o o o o...}
    3.2 {o X Y o o o o o o} {o [X Y] o o o o...}
    3.3 {o o X Y o o o o o} {o o [X Y] o o o...}
    3.4 {o o o X Y o o o o} {...o o [X Y] o o o...}
    3.5 {o o o o X Y o o o} {...o o [X Y] o o o}
    3.6 {o o o o o X Y o o} {...o o o [X Y] o o}
    3.7 {o o o o o o X Y o} {...o o o o [X Y] o}
    3.8 {o o o o o o o X Y} {...o o o o o [X Y]}

  } {
    do_snippet_test 2.$tn $doc "X + Y" $res
  }
}

} ;# foreach_detail_mode 

finish_test

  }

  return [concat {*}$res]
}

foreach {tn tbl} {
  1 { CREATE VIRTUAL TABLE t3 USING fts5(x, y, z, detail=col) }

} {
#break
  reset_db
  fts5_aux_test_functions db
  execsql $tbl
  foreach {id x y z} $data {
    execsql { INSERT INTO t3(rowid, x, y, z) VALUES($id, $x, $y, $z) }
  }
  foreach {tn2 expr} {
................................................................................
    } $res
  }
}

#-------------------------------------------------------------------------
# Simple tests for detail=none tables.
#
breakpoint
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t4 USING fts5(a, b, c, detail=none);
  INSERT INTO t4 VALUES('a b c', 'b c d', 'e f g');
  INSERT INTO t4 VALUES('1 2 3', '4 5 6', '7 8 9');
}

do_catchsql_test 4.1 {
  SELECT * FROM t4('a:a')
} {1 {fts5: column queries are not supported (detail=none)}}





























finish_test

  }

  return [concat {*}$res]
}

foreach {tn tbl} {
  1 { CREATE VIRTUAL TABLE t3 USING fts5(x, y, z, detail=col) }
  2 { CREATE VIRTUAL TABLE t3 USING fts5(x, y, z, detail=none) }
} {

  reset_db
  fts5_aux_test_functions db
  execsql $tbl
  foreach {id x y z} $data {
    execsql { INSERT INTO t3(rowid, x, y, z) VALUES($id, $x, $y, $z) }
  }
  foreach {tn2 expr} {
................................................................................
    } $res
  }
}

#-------------------------------------------------------------------------
# Simple tests for detail=none tables.
#

do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t4 USING fts5(a, b, c, detail=none);
  INSERT INTO t4 VALUES('a b c', 'b c d', 'e f g');
  INSERT INTO t4 VALUES('1 2 3', '4 5 6', '7 8 9');
}

do_catchsql_test 4.1 {
  SELECT * FROM t4('a:a')
} {1 {fts5: column queries are not supported (detail=none)}}

#-------------------------------------------------------------------------
# Test that for the same content detail=none uses less space than 
# detail=col, and that detail=col uses less space than detail=full
#
reset_db
do_test 5.1 {
  foreach {tbl detail} {t1 none t2 col t3 full} {
    execsql "CREATE VIRTUAL TABLE $tbl USING fts5(x, y, z, detail=$detail)"
    foreach {rowid x y z} $::data {
      execsql "INSERT INTO $tbl (rowid, x, y, z) VALUES(\$rowid, \$x, \$y, \$z)"
    }
  }
} {}

do_execsql_test 5.2 {
  SELECT 
    (SELECT sum(length(block)) from t1_data) <
    (SELECT sum(length(block)) from t2_data)
} {1}

do_execsql_test 5.3 {
  SELECT 
    (SELECT sum(length(block)) from t2_data) <
    (SELECT sum(length(block)) from t3_data)
} {1}



finish_test

set testprefix fts5simple2

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
  INSERT INTO t1 VALUES('a b c');
}
do_execsql_test 1.1 {
  SELECT rowid FROM t1('c a b')
................................................................................
  INSERT INTO t1 VALUES('a1 b1 c1', 'x y z');
  INSERT INTO t1 VALUES('a2 b2 c2', '1 2 3');
  INSERT INTO t1 VALUES('a1 b1 c1', 'x 2 z');
}
do_execsql_test 9.2.1 {
  INSERT INTO t1(t1) VALUES('integrity-check');
} {}









































































































finish_test

set testprefix fts5simple2

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

if 1 {

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
  INSERT INTO t1 VALUES('a b c');
}
do_execsql_test 1.1 {
  SELECT rowid FROM t1('c a b')
................................................................................
  INSERT INTO t1 VALUES('a1 b1 c1', 'x y z');
  INSERT INTO t1 VALUES('a2 b2 c2', '1 2 3');
  INSERT INTO t1 VALUES('a1 b1 c1', 'x 2 z');
}
do_execsql_test 9.2.1 {
  INSERT INTO t1(t1) VALUES('integrity-check');
} {}

#--------------------------------------------------------------------------
#
reset_db
do_execsql_test 10.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
  INSERT INTO t1 VALUES('b1');
  INSERT INTO t1 VALUES('b1');
  DELETE FROM t1 WHERE rowid=1;
}

do_execsql_test 10.1 {
  SELECT rowid FROM t1('b1');
} {2}

do_execsql_test 10.2 {
  SELECT rowid FROM t1('b1') ORDER BY rowid DESC;
} {2}

do_execsql_test 10.3 {
  INSERT INTO t1(t1) VALUES('integrity-check');
} {}

#--------------------------------------------------------------------------
#
reset_db
do_execsql_test 11.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=none);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  WITH d(x,y) AS (
    SELECT NULL, 'xyz' UNION ALL SELECT NULL, 'xyz' FROM d
  )
  INSERT INTO t1 SELECT * FROM d LIMIT 23;
}

#db eval { SELECT rowid AS r, quote(block) AS b FROM t1_data } { puts "$r: $b" }
do_execsql_test 11.2 {
  SELECT rowid FROM t1;
} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23}

do_execsql_test 11.3 {
  SELECT rowid FROM t1('xyz');
} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23}

do_execsql_test 11.4 {
  INSERT INTO t1(t1) VALUES('integrity-check');
}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 12.0 {
  CREATE VIRTUAL TABLE yy USING fts5(x, detail=none);
  INSERT INTO yy VALUES('in if');
  INSERT INTO yy VALUES('if');
} {}

do_execsql_test 12.1 {
  SELECT rowid FROM yy('i*');
} {1 2}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 13.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, prefix=1, detail=none);
} {}
foreach {rowid a} {
  0   {f}
  1   {u}
  2   {k}
  3   {a}
  4   {a}
  5   {u}
  6   {u}
  7   {u}
  8   {f}
  9   {f}
  10  {a}
  11  {p}
  12  {f}
  13  {u}
  14  {a}
  15  {a}
} {
  do_execsql_test 13.1.$rowid {
    INSERT INTO t1(rowid, a) VALUES($rowid, $a);
  }
}

}

#-------------------------------------------------------------------------
#
reset_db
fts5_aux_test_functions db
do_execsql_test 14.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
  INSERT INTO t1 VALUES('a b c d');
} {}

do_execsql_test 14.1 {
  SELECT fts5_test_poslist(t1) FROM t1('b') ORDER BY rank;
} {0.0.1}

finish_test