SQLite4  Check-in [15e8dd41a9]

    */
    regCnt = iMem;
    regPrev = iMem+1;
    aregCard = iMem+2;

    sqlite4VdbeAddOp2(v, OP_Integer, 0, regCnt);
    sqlite4VdbeAddOp2(v, OP_Null, 0, regPrev);
#ifdef SQLITE4_ENABLE_STAT3
    sqlite4VdbeAddOp2(v, OP_Null, 0, regSample);
#endif
    for(i=0; i<nCol; i++){
      sqlite4VdbeAddOp2(v, OP_Integer, 1, aregCard+i);
    }

    /* Start the analysis loop. This loop runs through all the entries in
    ** the index b-tree.  */
    endOfLoop = sqlite4VdbeMakeLabel(v);

** found in:
**
**   Stephen Robertson and Hugo Zaragoza: "The Probablistic Relevance
**   Framework: BM25 and Beyond", 2009.
*/

#include "sqliteInt.h"
#include <math.h>                 // temporary: For log() */

static char fts5Tolower(char c){
  if( c>='A' && c<='Z' ) c = c + ('a' - 'A');
  return c;
}

static int fts5SimpleCreate(

void lsmDbDatabaseRelease(lsm_db *);

int lsmBeginReadTrans(lsm_db *);
int lsmBeginWriteTrans(lsm_db *);
int lsmBeginFlush(lsm_db *);

int lsmDetectRoTrans(lsm_db *db, int *);
int lsmBeginRoTrans(lsm_db *db);

int lsmBeginWork(lsm_db *);
void lsmFinishWork(lsm_db *, int, int *);

int lsmFinishRecovery(lsm_db *);
void lsmFinishReadTrans(lsm_db *);
int lsmFinishWriteTrans(lsm_db *, int);

  u32 nHeight;                    /* Height of tree structure */
};

#ifndef NDEBUG
/*
** assert() that a TreeKey.flags value is sane. Usage:
**
**   assert( lsmAssertFlagsOk(pTreeKey->flags) );
*/
static int lsmAssertFlagsOk(u8 keyflags){
  /* At least one flag must be set. Otherwise, what is this key doing? */
  assert( keyflags!=0 );

  /* The POINT_DELETE and INSERT flags cannot both be set. */
  assert( (keyflags & LSM_POINT_DELETE)==0 || (keyflags & LSM_INSERT)==0 );

  /* If both the START_DELETE and END_DELETE flags are set, then the INSERT
  ** flag must also be set. In other words - the three DELETE flags cannot
  ** all be set */
  assert( (keyflags & LSM_END_DELETE)==0 
       || (keyflags & LSM_START_DELETE)==0 
       || (keyflags & LSM_POINT_DELETE)==0 
  );

  return 1;
}

static int assert_delete_ranges_match(lsm_db *);
static int treeCountEntries(lsm_db *db);
#else
# define lsmAssertFlagsOk(x)
#endif

/*
** Container for a key-value pair. Within the *-shm file, each key/value
** pair is stored in a single allocation (which may not actually be 
** contiguous in memory). Layout is the TreeKey structure, followed by
** the nKey bytes of key blob, followed by the nValue bytes of value blob

   sqliteInt.h

   global.c
   env.c
   ctime.c
   status.c
   date.c
   math.c

   os.c
   fault.c
   mem.c
   mem0.c

   mem2.c
   mem3.c
   mem5.c
   mutex.c
   mutex_noop.c
   mutex_unix.c
   mutex_w32.c