unireg.cc 18.3 KB
Newer Older
unknown's avatar
unknown committed
1
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
unknown's avatar
unknown committed
2

unknown's avatar
unknown committed
3 4 5 6
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
unknown's avatar
unknown committed
7

unknown's avatar
unknown committed
8 9 10 11
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
unknown's avatar
unknown committed
12

unknown's avatar
unknown committed
13 14 15 16 17 18 19 20
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */


/*
  Functions to create a unireg form-file from a FIELD and a fieldname-fieldinfo
  struct.
unknown's avatar
unknown committed
21
  In the following functions FIELD * is an ordinary field-structure with
unknown's avatar
unknown committed
22
  the following exeptions:
23
    sc_length,typepos,row,kol,dtype,regnr and field need not to be set.
unknown's avatar
unknown committed
24 25 26 27 28 29 30
    str is a (long) to record position where 0 is the first position.
*/

#define USES_TYPES
#include "mysql_priv.h"
#include <m_ctype.h>

31
#define FCOMP			17		/* Bytes for a packed field */
unknown's avatar
unknown committed
32 33 34 35

static uchar * pack_screens(List<create_field> &create_fields,
			    uint *info_length, uint *screens, bool small_file);
static uint pack_keys(uchar *keybuff,uint key_count, KEY *key_info);
36
static bool pack_header(uchar *forminfo,enum db_type table_type,
unknown's avatar
unknown committed
37 38 39 40 41 42 43 44 45 46 47 48
			List<create_field> &create_fields,
			uint info_length, uint screens, uint table_options,
			handler *file);
static uint get_interval_id(uint *int_count,List<create_field> &create_fields,
			    create_field *last_field);
static bool pack_fields(File file, List<create_field> &create_fields);
static bool make_empty_rec(int file, enum db_type table_type,
			   uint table_options,
			   List<create_field> &create_fields,
			   uint reclength,uint null_fields);


49
int rea_create_table(THD *thd, my_string file_name,
unknown's avatar
unknown committed
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
		     HA_CREATE_INFO *create_info,
		     List<create_field> &create_fields,
		     uint keys, KEY *key_info)
{
  uint reclength,info_length,screens,key_info_length,maxlength,null_fields;
  File file;
  ulong filepos;
  uchar fileinfo[64],forminfo[288],*keybuff;
  TYPELIB formnames;
  uchar *screen_buff;
  handler *db_file;
  DBUG_ENTER("rea_create_table");

  formnames.type_names=0;
  if (!(screen_buff=pack_screens(create_fields,&info_length,&screens,0)))
    DBUG_RETURN(1);
  db_file=get_new_handler((TABLE*) 0, create_info->db_type);
  if (pack_header(forminfo, create_info->db_type,create_fields,info_length,
		  screens, create_info->table_options, db_file))
  {
    my_free((gptr) screen_buff,MYF(0));
71
    if (thd->net.last_errno != ER_TOO_MANY_FIELDS)
unknown's avatar
unknown committed
72 73 74
      DBUG_RETURN(1);

    // Try again without UNIREG screens (to get more columns)
75
    thd->net.last_error[0]=0;
unknown's avatar
unknown committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
    if (!(screen_buff=pack_screens(create_fields,&info_length,&screens,1)))
      DBUG_RETURN(1);
    if (pack_header(forminfo, create_info->db_type, create_fields,info_length,
		    screens, create_info->table_options, db_file))
    {
      my_free((gptr) screen_buff,MYF(0));
      DBUG_RETURN(1);
    }
  }
  reclength=uint2korr(forminfo+266);
  null_fields=uint2korr(forminfo+282);

  if ((file=create_frm(file_name, reclength, fileinfo,
		       create_info, keys)) < 0)
  {
    my_free((gptr) screen_buff,MYF(0));
    DBUG_RETURN(1);
  }

unknown's avatar
unknown committed
95 96
  uint key_buff_length=keys*(7+NAME_LEN+MAX_REF_PARTS*9)+16;
  keybuff=(uchar*) my_malloc(key_buff_length, MYF(0));
unknown's avatar
unknown committed
97 98 99 100 101 102
  key_info_length=pack_keys(keybuff,keys,key_info);
  VOID(get_form_pos(file,fileinfo,&formnames));
  if (!(filepos=make_new_entry(file,fileinfo,&formnames,"")))
    goto err;
  maxlength=(uint) next_io_size((ulong) (uint2korr(forminfo)+1000));
  int2store(forminfo+2,maxlength);
unknown's avatar
unknown committed
103
  int4store(fileinfo+10,key_buff_length);
unknown's avatar
unknown committed
104 105 106
  fileinfo[26]= (uchar) test((create_info->max_rows == 1) &&
			     (create_info->min_rows == 1) && (keys == 0));
  int2store(fileinfo+28,key_info_length);
107
  strmake((char*) forminfo+47,create_info->comment ? create_info->comment : "",
unknown's avatar
unknown committed
108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
	  60);
  forminfo[46]=(uchar) strlen((char*)forminfo+47);	// Length of comment

  if (my_pwrite(file,(byte*) fileinfo,64,0L,MYF_RW) ||
      my_pwrite(file,(byte*) keybuff,key_info_length,
		(ulong) uint2korr(fileinfo+6),MYF_RW))
    goto err;
  VOID(my_seek(file,
	       (ulong) uint2korr(fileinfo+6)+ (ulong) key_buff_length,
	       MY_SEEK_SET,MYF(0)));
  if (make_empty_rec(file,create_info->db_type,create_info->table_options,
		     create_fields,reclength,null_fields))
    goto err;

  VOID(my_seek(file,filepos,MY_SEEK_SET,MYF(0)));
  if (my_write(file,(byte*) forminfo,288,MYF_RW) ||
      my_write(file,(byte*) screen_buff,info_length,MYF_RW) ||
      pack_fields(file,create_fields))
    goto err;

#ifdef HAVE_CRYPTED_FRM
  if (create_info->password)
  {
    char tmp=2,*disk_buff=0;
    SQL_CRYPT *crypted=new SQL_CRYPT(create_info->password);
    if (!crypted || my_pwrite(file,&tmp,1,26,MYF_RW))	// Mark crypted
      goto err;
    uint read_length=uint2korr(forminfo)-256;
    VOID(my_seek(file,filepos+256,MY_SEEK_SET,MYF(0)));
    if (read_string(file,(gptr*) &disk_buff,read_length))
      goto err;
    crypted->encode(disk_buff,read_length);
    delete crypted;
    if (my_pwrite(file,disk_buff,read_length,filepos+256,MYF_RW))
    {
      my_free(disk_buff,MYF(0));
      goto err;
    }
    my_free(disk_buff,MYF(0));
  }
#endif

  my_free((gptr) screen_buff,MYF(0));
unknown's avatar
unknown committed
151
  my_free((gptr) keybuff, MYF(0));
unknown's avatar
unknown committed
152 153 154 155 156 157 158
  VOID(my_close(file,MYF(MY_WME)));
  if (ha_create_table(file_name,create_info,0))
    goto err2;
  DBUG_RETURN(0);

err:
  my_free((gptr) screen_buff,MYF(0));
unknown's avatar
unknown committed
159
  my_free((gptr) keybuff, MYF(0));
unknown's avatar
unknown committed
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187
  VOID(my_close(file,MYF(MY_WME)));
 err2:
  my_delete(file_name,MYF(0));
  DBUG_RETURN(1);
} /* rea_create_table */


	/* Pack screens to a screen for save in a form-file */

static uchar * pack_screens(List<create_field> &create_fields,
			    uint *info_length, uint *screens,
			    bool small_file)
{
  reg1 uint i;
  uint row,start_row,end_row,fields_on_screen;
  uint length,cols;
  uchar *info,*pos,*start_screen;
  uint fields=create_fields.elements;
  List_iterator<create_field> it(create_fields);
  DBUG_ENTER("pack_screens");

  start_row=4; end_row=22; cols=80; fields_on_screen=end_row+1-start_row;

  *screens=(fields-1)/fields_on_screen+1;
  length= (*screens) * (SC_INFO_LENGTH+ (cols>> 1)+4);

  create_field *field;
  while ((field=it++))
unknown's avatar
unknown committed
188
    length+=(uint) strlen(field->field_name)+1+TE_INFO_LENGTH+cols/2;
unknown's avatar
unknown committed
189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217

  if (!(info=(uchar*) my_malloc(length,MYF(MY_WME))))
    DBUG_RETURN(0);

  start_screen=0;
  row=end_row;
  pos=info;
  it.rewind();
  for (i=0 ; i < fields ; i++)
  {
    create_field *cfield=it++;
    if (row++ == end_row)
    {
      if (i)
      {
	length=(uint) (pos-start_screen);
	int2store(start_screen,length);
	start_screen[2]=(uchar) (fields_on_screen+1);
	start_screen[3]=(uchar) (fields_on_screen);
      }
      row=start_row;
      start_screen=pos;
      pos+=4;
      pos[0]= (uchar) start_row-2;	/* Header string */
      pos[1]= (uchar) (cols >> 2);
      pos[2]= (uchar) (cols >> 1) +1;
      strfill((my_string) pos+3,(uint) (cols >> 1),' ');
      pos+=(cols >> 1)+4;
    }
unknown's avatar
unknown committed
218
    length=(uint) strlen(cfield->field_name);
unknown's avatar
unknown committed
219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
    if (length > cols-3)
      length=cols-3;

    if (!small_file)
    {
      pos[0]=(uchar) row;
      pos[1]=0;
      pos[2]=(uchar) (length+1);
      pos=(uchar*) strmake((char*) pos+3,cfield->field_name,length)+1;
    }
    cfield->row=(uint8) row;
    cfield->col=(uint8) (length+1);
    cfield->sc_length=(uint8) min(cfield->length,cols-(length+2));
  }
  length=(uint) (pos-start_screen);
  int2store(start_screen,length);
  start_screen[2]=(uchar) (row-start_row+2);
  start_screen[3]=(uchar) (row-start_row+1);

  *info_length=(uint) (pos-info);
  DBUG_RETURN(info);
} /* pack_screens */


	/* Pack keyinfo and keynames to keybuff for save in form-file. */

static uint pack_keys(uchar *keybuff,uint key_count,KEY *keyinfo)
{
  uint key_parts,length;
unknown's avatar
unknown committed
248
  uchar *pos, *keyname_pos;
unknown's avatar
unknown committed
249 250 251 252 253 254 255 256
  KEY *key,*end;
  KEY_PART_INFO *key_part,*key_part_end;
  DBUG_ENTER("pack_keys");

  pos=keybuff+6;
  key_parts=0;
  for (key=keyinfo,end=keyinfo+key_count ; key != end ; key++)
  {
257 258 259 260
    int2store(pos, (key->flags ^ HA_NOSAME));
    int2store(pos+2,key->key_length);
    pos[4]= (uchar) key->key_parts;
    pos[5]= (uchar) key->algorithm;
unknown's avatar
unknown committed
261
    pos[6]=pos[7]=0;				// For the future
262
    pos+=8;
unknown's avatar
unknown committed
263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283
    key_parts+=key->key_parts;
    DBUG_PRINT("loop",("flags: %d  key_parts: %d at %lx",
		       key->flags,key->key_parts,
		       key->key_part));
    for (key_part=key->key_part,key_part_end=key_part+key->key_parts ;
	 key_part != key_part_end ;
	 key_part++)

    {
      DBUG_PRINT("loop",("field: %d  startpos: %ld  length: %ld",
			 key_part->fieldnr,key_part->offset,key_part->length));
      int2store(pos,key_part->fieldnr+1+FIELD_NAME_USED);
      int2store(pos+2,key_part->offset+1);
      pos[4]=0;					// Sort order
      int2store(pos+5,key_part->key_type);
      int2store(pos+7,key_part->length);
      pos+=9;
    }
  }
	/* Save keynames */
  keyname_pos=pos;
284
  *pos++=(uchar) NAMES_SEP_CHAR;
unknown's avatar
unknown committed
285 286 287
  for (key=keyinfo ; key != end ; key++)
  {
    uchar *tmp=(uchar*) strmov((char*) pos,key->name);
288
    *tmp++= (uchar) NAMES_SEP_CHAR;
unknown's avatar
unknown committed
289 290 291 292 293
    *tmp=0;
    pos=tmp;
  }
  *(pos++)=0;

unknown's avatar
unknown committed
294 295 296 297 298 299 300 301 302 303 304
  if (key_count > 127 || key_parts > 127)
  {
    key_count|=0x8000;
    int2store(keybuff,key_count);
    int2store(keybuff+2,key_parts);
  }
  else
  {
    keybuff[0]=(uchar) key_count;
    keybuff[1]=(uchar) key_parts;
  }
unknown's avatar
unknown committed
305
  length=(uint) (pos-keyname_pos);
unknown's avatar
unknown committed
306 307 308 309 310 311 312 313 314 315 316 317
  int2store(keybuff+4,length);
  DBUG_RETURN((uint) (pos-keybuff));
} /* pack_keys */


	/* Make formheader */

static bool pack_header(uchar *forminfo, enum db_type table_type,
			List<create_field> &create_fields,
			uint info_length, uint screens,uint table_options,
			handler *file)
{
318
  uint length,int_count,int_length,no_empty, int_parts;
unknown's avatar
unknown committed
319 320
  uint time_stamp_pos,null_fields;
  ulong reclength, totlength, n_length, com_length;
unknown's avatar
unknown committed
321 322 323 324 325 326 327 328 329
  DBUG_ENTER("pack_header");

  if (create_fields.elements > MAX_FIELDS)
  {
    my_error(ER_TOO_MANY_FIELDS,MYF(0));
    DBUG_RETURN(1);
  }

  totlength=reclength=0L;
330 331
  no_empty=int_count=int_parts=int_length=time_stamp_pos=null_fields=
    com_length=0;
unknown's avatar
unknown committed
332 333 334 335 336 337 338 339 340
  n_length=2L;

	/* Check fields */

  List_iterator<create_field> it(create_fields);
  create_field *field;
  while ((field=it++))
  {
    totlength+= field->length;
341
    com_length+= field->comment.length;
unknown's avatar
unknown committed
342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364
    if (MTYP_TYPENR(field->unireg_check) == Field::NOEMPTY ||
	field->unireg_check & MTYP_NOEMPTY_BIT)
    {
      field->unireg_check= (Field::utype) ((uint) field->unireg_check |
					   MTYP_NOEMPTY_BIT);
      no_empty++;
    }
    if ((MTYP_TYPENR(field->unireg_check) == Field::TIMESTAMP_FIELD ||
	 f_packtype(field->pack_flag) == (int) FIELD_TYPE_TIMESTAMP) &&
	!time_stamp_pos)
      time_stamp_pos=(int) field->offset+1;
    length=field->pack_length;
    if ((int) field->offset+length > reclength)
      reclength=(int) field->offset+length;
    n_length+= (ulong) strlen(field->field_name)+1;
    field->interval_id=0;
    if (field->interval)
    {
      uint old_int_count=int_count;
      field->interval_id=get_interval_id(&int_count,create_fields,field);
      if (old_int_count != int_count)
      {
	for (const char **pos=field->interval->type_names ; *pos ; pos++)
unknown's avatar
unknown committed
365
	  int_length+=(uint) strlen(*pos)+1;	// field + suffix prefix
unknown's avatar
unknown committed
366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383
	int_parts+=field->interval->count+1;
      }
    }
    if (f_maybe_null(field->pack_flag))
      null_fields++;
  }
  int_length+=int_count*2;			// 255 prefix + 0 suffix

	/* Save values in forminfo */

  if (reclength > (ulong) file->max_record_length())
  {
    my_error(ER_TOO_BIG_ROWSIZE, MYF(0), (uint) file->max_record_length());
    DBUG_RETURN(1);
  }
  /* Hack to avoid bugs with small static rows in MySQL */
  reclength=max(file->min_record_length(table_options),reclength);
  if (info_length+(ulong) create_fields.elements*FCOMP+288+
384
      n_length+int_length+com_length > 65535L || int_count > 255)
unknown's avatar
unknown committed
385 386 387 388 389 390
  {
    my_error(ER_TOO_MANY_FIELDS,MYF(0));
    DBUG_RETURN(1);
  }

  bzero((char*)forminfo,288);
391 392
  length=(info_length+create_fields.elements*FCOMP+288+n_length+int_length+
	  com_length);
unknown's avatar
unknown committed
393 394 395 396 397 398 399 400 401 402 403 404
  int2store(forminfo,length);
  forminfo[256] = (uint8) screens;
  int2store(forminfo+258,create_fields.elements);
  int2store(forminfo+260,info_length);
  int2store(forminfo+262,totlength);
  int2store(forminfo+264,no_empty);
  int2store(forminfo+266,reclength);
  int2store(forminfo+268,n_length);
  int2store(forminfo+270,int_count);
  int2store(forminfo+272,int_parts);
  int2store(forminfo+274,int_length);
  int2store(forminfo+276,time_stamp_pos);
405 406
  int2store(forminfo+278,80);			/* Columns needed */
  int2store(forminfo+280,22);			/* Rows needed */
unknown's avatar
unknown committed
407
  int2store(forminfo+282,null_fields);
408
  int2store(forminfo+284,com_length);
unknown's avatar
unknown committed
409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445
  DBUG_RETURN(0);
} /* pack_header */


	/* get each unique interval each own id */

static uint get_interval_id(uint *int_count,List<create_field> &create_fields,
			    create_field *last_field)
{
  List_iterator<create_field> it(create_fields);
  create_field *field;
  TYPELIB *interval=last_field->interval;

  while ((field=it++) != last_field)
  {
    if (field->interval_id && field->interval->count == interval->count)
    {
      const char **a,**b;
      for (a=field->interval->type_names, b=interval->type_names ;
	   *a && !strcmp(*a,*b);
	   a++,b++) ;

      if (! *a)
      {
	return field->interval_id;		// Re-use last interval
      }
    }
  }
  return ++*int_count;				// New unique interval
}


	/* Save fields, fieldnames and intervals */

static bool pack_fields(File file,List<create_field> &create_fields)
{
  reg2 uint i;
446
  uint int_count, comment_length=0;
unknown's avatar
unknown committed
447 448 449 450 451 452 453 454 455 456 457 458 459 460
  uchar buff[MAX_FIELD_WIDTH];
  create_field *field;
  DBUG_ENTER("pack_fields");

	/* Write field info */

  List_iterator<create_field> it(create_fields);

  int_count=0;
  while ((field=it++))
  {
    buff[0]= (uchar) field->row;
    buff[1]= (uchar) field->col;
    buff[2]= (uchar) field->sc_length;
461
    int2store(buff+3, field->length);
unknown's avatar
unknown committed
462
    uint recpos=(uint) field->offset+1;
463 464 465 466 467
    int3store(buff+5,recpos);
    int2store(buff+8,field->pack_flag);
    int2store(buff+10,field->unireg_check);
    buff[12]= (uchar) field->interval_id;
    buff[13]= (uchar) field->sql_type; 
unknown's avatar
unknown committed
468 469
    if (field->sql_type == FIELD_TYPE_GEOMETRY)
      buff[14]= (uchar) field->geom_type;
470
    else if (field->charset) 
unknown's avatar
unknown committed
471
      buff[14]= (uchar) field->charset->number;
472 473
    else
      buff[14]= 0;				// Numerical
474
    int2store(buff+15, field->comment.length);
475
    comment_length+= field->comment.length;
unknown's avatar
unknown committed
476 477 478 479 480 481
    set_if_bigger(int_count,field->interval_id);
    if (my_write(file,(byte*) buff,FCOMP,MYF_RW))
      DBUG_RETURN(1);
  }

	/* Write fieldnames */
482
  buff[0]=(uchar) NAMES_SEP_CHAR;
unknown's avatar
unknown committed
483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500
  if (my_write(file,(byte*) buff,1,MYF_RW))
    DBUG_RETURN(1);
  i=0;
  it.rewind();
  while ((field=it++))
  {
    char *pos= strmov((char*) buff,field->field_name);
    *pos++=NAMES_SEP_CHAR;
    if (i == create_fields.elements-1)
      *pos++=0;
    if (my_write(file,(byte*) buff,(uint) (pos-(char*) buff),MYF_RW))
      DBUG_RETURN(1);
    i++;
  }

	/* Write intervals */
  if (int_count)
  {
501
    String tmp((char*) buff,sizeof(buff), &my_charset_bin);
unknown's avatar
unknown committed
502 503 504 505 506 507 508 509
    tmp.length(0);
    it.rewind();
    int_count=0;
    while ((field=it++))
    {
      if (field->interval_id > int_count)
      {
	int_count=field->interval_id;
510
	tmp.append(NAMES_SEP_CHAR);
unknown's avatar
unknown committed
511 512 513
	for (const char **pos=field->interval->type_names ; *pos ; pos++)
	{
	  tmp.append(*pos);
514
	  tmp.append(NAMES_SEP_CHAR);
unknown's avatar
unknown committed
515 516 517 518 519 520 521
	}
	tmp.append('\0');			// End of intervall
      }
    }
    if (my_write(file,(byte*) tmp.ptr(),tmp.length(),MYF_RW))
      DBUG_RETURN(1);
  }
522 523 524 525 526 527 528 529 530 531 532 533
  if (comment_length)
  {
    it.rewind();
    int_count=0;
    while ((field=it++))
    {
      if (field->comment.length)
	if (my_write(file, (byte*) field->comment.str, field->comment.length,
		     MYF_RW))
	  DBUG_RETURN(1);
    }
  }
unknown's avatar
unknown committed
534 535 536 537
  DBUG_RETURN(0);
}


unknown's avatar
unknown committed
538
	/* save an empty record on start of formfile */
unknown's avatar
unknown committed
539 540 541 542 543 544 545 546 547 548 549 550

static bool make_empty_rec(File file,enum db_type table_type,
			   uint table_options,
			   List<create_field> &create_fields,
			   uint reclength, uint null_fields)
{
  int error;
  Field::utype type;
  uint firstpos,null_count,null_length;
  uchar *buff,*null_pos;
  TABLE table;
  create_field *field;
551
  handler *handler;
unknown's avatar
unknown committed
552 553 554 555
  DBUG_ENTER("make_empty_rec");

  /* We need a table to generate columns for default values */
  bzero((char*) &table,sizeof(table));
556
  handler= get_new_handler((TABLE*) 0, table_type);
unknown's avatar
unknown committed
557

558 559 560 561
  if (!handler ||
      !(buff=(uchar*) my_malloc((uint) reclength,MYF(MY_WME | MY_ZEROFILL))))
  {
    delete handler;
unknown's avatar
unknown committed
562
    DBUG_RETURN(1);
563 564 565 566 567
  }

  table.db_low_byte_first= handler->low_byte_first();
  table.blob_ptr_size=portable_sizeof_char_ptr;

unknown's avatar
unknown committed
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585
  firstpos=reclength;
  null_count=0;
  if (!(table_options & HA_OPTION_PACK_RECORD))
  {
    null_fields++;				// Need one bit for delete mark
    null_count++;
  }
  bfill(buff,(null_length=(null_fields+7)/8),255);
  null_pos=buff;

  List_iterator<create_field> it(create_fields);
  while ((field=it++))
  {
    Field *regfield=make_field((char*) buff+field->offset,field->length,
			       field->flags & NOT_NULL_FLAG ? 0:
			       null_pos+null_count/8,
			       1 << (null_count & 7),
			       field->pack_flag,
586
			       field->sql_type,
587
			       field->charset,
unknown's avatar
unknown committed
588
			       field->geom_type,
unknown's avatar
unknown committed
589 590 591 592
			       field->unireg_check,
			       field->interval,
			       field->field_name,
			       &table);
593

unknown's avatar
unknown committed
594 595 596 597 598 599 600 601 602 603 604 605
    if (!(field->flags & NOT_NULL_FLAG))
      null_count++;

    if ((uint) field->offset < firstpos &&
	regfield->type() != FIELD_TYPE_NULL)
      firstpos= field->offset;

    type= (Field::utype) MTYP_TYPENR(field->unireg_check);

    if (field->def &&
	(regfield->real_type() != FIELD_TYPE_YEAR ||
	 field->def->val_int() != 0))
unknown's avatar
unknown committed
606
      (void) field->def->save_in_field(regfield, 1);
unknown's avatar
unknown committed
607 608 609 610 611 612 613
    else if (regfield->real_type() == FIELD_TYPE_ENUM &&
	     (field->flags & NOT_NULL_FLAG))
    {
      regfield->set_notnull();
      regfield->store((longlong) 1);
    }
    else if (type == Field::YES)		// Old unireg type
614
      regfield->store(ER(ER_YES),(uint) strlen(ER(ER_YES)),system_charset_info);
unknown's avatar
unknown committed
615
    else if (type == Field::NO)			// Old unireg type
616
      regfield->store(ER(ER_NO), (uint) strlen(ER(ER_NO)),system_charset_info);
unknown's avatar
unknown committed
617 618 619 620
    else
      regfield->reset();
    delete regfield;
  }
621 622 623

  /* Fill not used startpos */
  bfill((byte*) buff+null_length,firstpos-null_length,255);
unknown's avatar
unknown committed
624 625
  error=(int) my_write(file,(byte*) buff,(uint) reclength,MYF_RW);
  my_free((gptr) buff,MYF(MY_FAE));
626
  delete handler;
unknown's avatar
unknown committed
627 628
  DBUG_RETURN(error);
} /* make_empty_rec */