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Overview
Comment:Improved error messages on the RTREE virtual table. Make the "fs" virtual table used for testing available on windows.
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SHA1: c0b90d75a86b01f7fafec755cbe046c14d725341
User & Date: drh 2013-01-17 17:05:28
Context
2013-01-17
17:20
Enhance the query planner to exploit transitivity of join constraints. check-in: 38852f15 user: drh tags: trunk
17:05
Improved error messages on the RTREE virtual table. Make the "fs" virtual table used for testing available on windows. check-in: c0b90d75 user: drh tags: trunk
03:18
Enhance RTree virtual table creation error messages that involve the getNodeSize() function. Closed-Leaf check-in: 652233d6 user: mistachkin tags: rtreeErrMsg
2013-01-16
20:33
Fix the activate_extensions pragma so that it is a no-op when the required argument is omitted. check-in: 6195ebd8 user: drh tags: trunk
Changes
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Changes to Makefile.msc. 

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  $(TOP)\src\test_autoext.c \
  $(TOP)\src\test_async.c \
  $(TOP)\src\test_backup.c \
  $(TOP)\src\test_btree.c \
  $(TOP)\src\test_config.c \
  $(TOP)\src\test_demovfs.c \
  $(TOP)\src\test_devsym.c \

  $(TOP)\src\test_func.c \
  $(TOP)\src\test_fuzzer.c \
  $(TOP)\src\test_hexio.c \
  $(TOP)\src\test_init.c \
  $(TOP)\src\test_intarray.c \
  $(TOP)\src\test_journal.c \
  $(TOP)\src\test_malloc.c \








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  $(TOP)\src\test_autoext.c \
  $(TOP)\src\test_async.c \
  $(TOP)\src\test_backup.c \
  $(TOP)\src\test_btree.c \
  $(TOP)\src\test_config.c \
  $(TOP)\src\test_demovfs.c \
  $(TOP)\src\test_devsym.c \
  $(TOP)\src\test_fs.c \
  $(TOP)\src\test_func.c \
  $(TOP)\src\test_fuzzer.c \
  $(TOP)\src\test_hexio.c \
  $(TOP)\src\test_init.c \
  $(TOP)\src\test_intarray.c \
  $(TOP)\src\test_journal.c \
  $(TOP)\src\test_malloc.c \

Changes to ext/rtree/rtree.c. 

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** This ensures that each node is stored on a single database page. If the 
** database page-size is so large that more than RTREE_MAXCELLS entries 
** would fit in a single node, use a smaller node-size.
*/
static int getNodeSize(
  sqlite3 *db,                    /* Database handle */
  Rtree *pRtree,                  /* Rtree handle */
  int isCreate                    /* True for xCreate, false for xConnect */

){
  int rc;
  char *zSql;
  if( isCreate ){
    int iPageSize = 0;
    zSql = sqlite3_mprintf("PRAGMA %Q.page_size", pRtree->zDb);
    rc = getIntFromStmt(db, zSql, &iPageSize);
    if( rc==SQLITE_OK ){
      pRtree->iNodeSize = iPageSize-64;
      if( (4+pRtree->nBytesPerCell*RTREE_MAXCELLS)<pRtree->iNodeSize ){
        pRtree->iNodeSize = 4+pRtree->nBytesPerCell*RTREE_MAXCELLS;
      }


    }
  }else{
    zSql = sqlite3_mprintf(
        "SELECT length(data) FROM '%q'.'%q_node' WHERE nodeno = 1",
        pRtree->zDb, pRtree->zName
    );
    rc = getIntFromStmt(db, zSql, &pRtree->iNodeSize);



  }

  sqlite3_free(zSql);
  return rc;
}

/* 
................................................................................
  pRtree->nDim = (argc-4)/2;
  pRtree->nBytesPerCell = 8 + pRtree->nDim*4*2;
  pRtree->eCoordType = eCoordType;
  memcpy(pRtree->zDb, argv[1], nDb);
  memcpy(pRtree->zName, argv[2], nName);

  /* Figure out the node size to use. */
  rc = getNodeSize(db, pRtree, isCreate);

  /* Create/Connect to the underlying relational database schema. If
  ** that is successful, call sqlite3_declare_vtab() to configure
  ** the r-tree table schema.
  */
  if( rc==SQLITE_OK ){
    if( (rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate)) ){








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** This ensures that each node is stored on a single database page. If the 
** database page-size is so large that more than RTREE_MAXCELLS entries 
** would fit in a single node, use a smaller node-size.
*/
static int getNodeSize(
  sqlite3 *db,                    /* Database handle */
  Rtree *pRtree,                  /* Rtree handle */
  int isCreate,                   /* True for xCreate, false for xConnect */
  char **pzErr                    /* OUT: Error message, if any */
){
  int rc;
  char *zSql;
  if( isCreate ){
    int iPageSize = 0;
    zSql = sqlite3_mprintf("PRAGMA %Q.page_size", pRtree->zDb);
    rc = getIntFromStmt(db, zSql, &iPageSize);
    if( rc==SQLITE_OK ){
      pRtree->iNodeSize = iPageSize-64;
      if( (4+pRtree->nBytesPerCell*RTREE_MAXCELLS)<pRtree->iNodeSize ){
        pRtree->iNodeSize = 4+pRtree->nBytesPerCell*RTREE_MAXCELLS;
      }
    }else{
      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
    }
  }else{
    zSql = sqlite3_mprintf(
        "SELECT length(data) FROM '%q'.'%q_node' WHERE nodeno = 1",
        pRtree->zDb, pRtree->zName
    );
    rc = getIntFromStmt(db, zSql, &pRtree->iNodeSize);
    if( rc!=SQLITE_OK ){
      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
    }
  }

  sqlite3_free(zSql);
  return rc;
}

/* 
................................................................................
  pRtree->nDim = (argc-4)/2;
  pRtree->nBytesPerCell = 8 + pRtree->nDim*4*2;
  pRtree->eCoordType = eCoordType;
  memcpy(pRtree->zDb, argv[1], nDb);
  memcpy(pRtree->zName, argv[2], nName);

  /* Figure out the node size to use. */
  rc = getNodeSize(db, pRtree, isCreate, pzErr);

  /* Create/Connect to the underlying relational database schema. If
  ** that is successful, call sqlite3_declare_vtab() to configure
  ** the r-tree table schema.
  */
  if( rc==SQLITE_OK ){
    if( (rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate)) ){

Changes to src/test_fs.c. 

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#include "sqliteInt.h"
#include "tcl.h"

#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>



#include <unistd.h>


#include <fcntl.h>


#ifndef SQLITE_OMIT_VIRTUALTABLE

typedef struct fs_vtab fs_vtab;
typedef struct fs_cursor fs_cursor;

/* 








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#include "sqliteInt.h"
#include "tcl.h"

#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#if SQLITE_OS_UNIX
# include <unistd.h>
#endif
#if SQLITE_OS_WIN
# include <io.h>
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE

typedef struct fs_vtab fs_vtab;
typedef struct fs_cursor fs_cursor;

/*

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