unireg.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:22k
- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- 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.
- 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.
- 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.
- In the following functions FIELD * is an ordinary field-structure with
- the following exeptions:
- sc_length,typepos,row,kol,dtype,regnr and field need not to be set.
- str is a (long) to record position where 0 is the first position.
- */
- #define USES_TYPES
- #include "mysql_priv.h"
- #include <m_ctype.h>
- #include <assert.h>
- #define FCOMP 17 /* Bytes for a packed field */
- 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,
- ulong data_offset);
- static bool pack_header(uchar *forminfo,enum db_type table_type,
- List<create_field> &create_fields,
- uint info_length, uint screens, uint table_options,
- ulong data_offset, 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,
- ulong data_offset);
- 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,
- ulong data_offset);
- /*
- Create a frm (table definition) file
- SYNOPSIS
- mysql_create_frm()
- thd Thread handler
- file_name Name of file (including database and .frm)
- db Name of database
- table Name of table
- create_info create info parameters
- create_fields Fields to create
- keys number of keys to create
- key_info Keys to create
- db_file Handler to use. May be zero, in which case we use
- create_info->db_type
- RETURN
- 0 ok
- 1 error
- */
- bool mysql_create_frm(THD *thd, my_string file_name,
- const char *db, const char *table,
- HA_CREATE_INFO *create_info,
- List<create_field> &create_fields,
- uint keys, KEY *key_info,
- handler *db_file)
- {
- uint reclength,info_length,screens,key_info_length,maxlength,null_fields;
- File file;
- ulong filepos, data_offset;
- uchar fileinfo[64],forminfo[288],*keybuff;
- TYPELIB formnames;
- uchar *screen_buff;
- DBUG_ENTER("mysql_create_frm");
- formnames.type_names=0;
- if (!(screen_buff=pack_screens(create_fields,&info_length,&screens,0)))
- DBUG_RETURN(1);
- if (db_file == NULL)
- db_file= get_new_handler((TABLE*) 0, create_info->db_type);
- /* If fixed row records, we need one bit to check for deleted rows */
- if (!(create_info->table_options & HA_OPTION_PACK_RECORD))
- create_info->null_bits++;
- data_offset= (create_info->null_bits + 7) / 8;
- if (pack_header(forminfo, create_info->db_type,create_fields,info_length,
- screens, create_info->table_options,
- data_offset, db_file))
- {
- my_free((gptr) screen_buff,MYF(0));
- if (thd->net.last_errno != ER_TOO_MANY_FIELDS)
- DBUG_RETURN(1);
- // Try again without UNIREG screens (to get more columns)
- thd->net.last_error[0]=0;
- 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, data_offset, 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, db, table, reclength, fileinfo,
- create_info, keys)) < 0)
- {
- my_free((gptr) screen_buff,MYF(0));
- DBUG_RETURN(1);
- }
- uint key_buff_length=keys*(7+NAME_LEN+MAX_REF_PARTS*9)+16;
- keybuff=(uchar*) my_malloc(key_buff_length, MYF(0));
- key_info_length= pack_keys(keybuff, keys, key_info, data_offset);
- 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);
- int4store(fileinfo+10,(ulong) (filepos+maxlength));
- int4store(fileinfo+47,key_buff_length);
- fileinfo[26]= (uchar) test((create_info->max_rows == 1) &&
- (create_info->min_rows == 1) && (keys == 0));
- int2store(fileinfo+28,key_info_length);
- strmake((char*) forminfo+47,create_info->comment ? create_info->comment : "",
- 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, data_offset))
- 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, data_offset))
- 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));
- my_free((gptr) keybuff, MYF(0));
- if (opt_sync_frm && !(create_info->options & HA_LEX_CREATE_TMP_TABLE) &&
- my_sync(file, MYF(MY_WME)))
- goto err2;
- if (my_close(file,MYF(MY_WME)))
- goto err3;
- {
- /* Unescape all UCS2 intervals: were escaped in pack_headers */
- List_iterator<create_field> it(create_fields);
- create_field *field;
- while ((field=it++))
- {
- if (field->interval && field->charset->mbminlen > 1)
- unhex_type2(field->interval);
- }
- }
- DBUG_RETURN(0);
- err:
- my_free((gptr) screen_buff,MYF(0));
- my_free((gptr) keybuff, MYF(0));
- err2:
- VOID(my_close(file,MYF(MY_WME)));
- err3:
- my_delete(file_name,MYF(0));
- DBUG_RETURN(1);
- } /* mysql_create_frm */
- /*
- Create a frm (table definition) file and the tables
- SYNOPSIS
- rea_create_table()
- thd Thread handler
- file_name Name of file (including database and .frm)
- db Name of database
- table Name of table
- create_info create info parameters
- create_fields Fields to create
- keys number of keys to create
- key_info Keys to create
- db_file Handler to use. May be zero, in which case we use
- create_info->db_type
- RETURN
- 0 ok
- 1 error
- */
- int rea_create_table(THD *thd, my_string file_name,
- const char *db, const char *table,
- HA_CREATE_INFO *create_info,
- List<create_field> &create_fields,
- uint keys, KEY *key_info)
- {
- DBUG_ENTER("rea_create_table");
- if (mysql_create_frm(thd, file_name, db, table, create_info,
- create_fields, keys, key_info, NULL))
- DBUG_RETURN(1);
- if (ha_create_table(file_name,create_info,0))
- {
- my_delete(file_name,MYF(0));
- DBUG_RETURN(1);
- }
- DBUG_RETURN(0);
- } /* 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++))
- length+=(uint) strlen(field->field_name)+1+TE_INFO_LENGTH+cols/2;
- 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;
- }
- length=(uint) strlen(cfield->field_name);
- 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,
- ulong data_offset)
- {
- uint key_parts,length;
- uchar *pos, *keyname_pos;
- 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++)
- {
- int2store(pos, (key->flags ^ HA_NOSAME));
- int2store(pos+2,key->key_length);
- pos[4]= (uchar) key->key_parts;
- pos[5]= (uchar) key->algorithm;
- pos[6]=pos[7]=0; // For the future
- pos+=8;
- 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++)
- {
- uint offset;
- DBUG_PRINT("loop",("field: %d startpos: %lu length: %ld",
- key_part->fieldnr, key_part->offset + data_offset,
- key_part->length));
- int2store(pos,key_part->fieldnr+1+FIELD_NAME_USED);
- offset= (uint) (key_part->offset+data_offset+1);
- int2store(pos+2, offset);
- 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;
- *pos++=(uchar) NAMES_SEP_CHAR;
- for (key=keyinfo ; key != end ; key++)
- {
- uchar *tmp=(uchar*) strmov((char*) pos,key->name);
- *tmp++= (uchar) NAMES_SEP_CHAR;
- *tmp=0;
- pos=tmp;
- }
- *(pos++)=0;
- if (key_count > 127 || key_parts > 127)
- {
- keybuff[0]= (key_count & 0x7f) | 0x80;
- keybuff[1]= key_count >> 7;
- int2store(keybuff+2,key_parts);
- }
- else
- {
- keybuff[0]=(uchar) key_count;
- keybuff[1]=(uchar) key_parts;
- keybuff[2]= keybuff[3]= 0;
- }
- length=(uint) (pos-keyname_pos);
- 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,
- ulong data_offset, handler *file)
- {
- uint length,int_count,int_length,no_empty, int_parts;
- uint time_stamp_pos,null_fields;
- ulong reclength, totlength, n_length, com_length;
- DBUG_ENTER("pack_header");
- if (create_fields.elements > MAX_FIELDS)
- {
- my_error(ER_TOO_MANY_FIELDS,MYF(0));
- DBUG_RETURN(1);
- }
- totlength=reclength=0L;
- no_empty=int_count=int_parts=int_length=time_stamp_pos=null_fields=
- com_length=0;
- n_length=2L;
- /* Check fields */
- List_iterator<create_field> it(create_fields);
- create_field *field;
- while ((field=it++))
- {
- totlength+= field->length;
- com_length+= field->comment.length;
- 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++;
- }
- /*
- We mark first TIMESTAMP field with NOW() in DEFAULT or ON UPDATE
- as auto-update field.
- */
- if (field->sql_type == FIELD_TYPE_TIMESTAMP &&
- MTYP_TYPENR(field->unireg_check) != Field::NONE &&
- !time_stamp_pos)
- time_stamp_pos= (uint) field->offset+ (uint) data_offset + 1;
- length=field->pack_length;
- if ((uint) field->offset+ (uint) data_offset+ length > reclength)
- reclength=(uint) (field->offset+ data_offset + length);
- n_length+= (ulong) strlen(field->field_name)+1;
- field->interval_id=0;
- if (field->interval)
- {
- uint old_int_count=int_count;
- if (field->charset->mbminlen > 1)
- {
- /* Escape UCS2 intervals using HEX notation */
- for (uint pos= 0; pos < field->interval->count; pos++)
- {
- char *dst;
- uint length= field->interval->type_lengths[pos], hex_length;
- const char *src= field->interval->type_names[pos];
- const char *srcend= src + length;
- hex_length= length * 2;
- field->interval->type_lengths[pos]= hex_length;
- field->interval->type_names[pos]= dst= sql_alloc(hex_length + 1);
- for ( ; src < srcend; src++)
- {
- *dst++= _dig_vec_upper[((uchar) *src) >> 4];
- *dst++= _dig_vec_upper[((uchar) *src) & 15];
- }
- *dst= ' ';
- }
- }
- 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++)
- int_length+=(uint) strlen(*pos)+1; // field + suffix prefix
- 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+
- n_length+int_length+com_length > 65535L || int_count > 255)
- {
- my_error(ER_TOO_MANY_FIELDS,MYF(0));
- DBUG_RETURN(1);
- }
- bzero((char*)forminfo,288);
- length=(info_length+create_fields.elements*FCOMP+288+n_length+int_length+
- com_length);
- 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);
- int2store(forminfo+278,80); /* Columns needed */
- int2store(forminfo+280,22); /* Rows needed */
- int2store(forminfo+282,null_fields);
- int2store(forminfo+284,com_length);
- 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,
- ulong data_offset)
- {
- reg2 uint i;
- uint int_count, comment_length=0;
- 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++))
- {
- uint recpos;
- buff[0]= (uchar) field->row;
- buff[1]= (uchar) field->col;
- buff[2]= (uchar) field->sc_length;
- int2store(buff+3, field->length);
- /* The +1 is here becasue the col offset in .frm file have offset 1 */
- recpos= field->offset+1 + (uint) data_offset;
- 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;
- if (field->sql_type == FIELD_TYPE_GEOMETRY)
- {
- buff[14]= (uchar) field->geom_type;
- #ifndef HAVE_SPATIAL
- DBUG_ASSERT(0); // Should newer happen
- #endif
- }
- else if (field->charset)
- buff[14]= (uchar) field->charset->number;
- else
- buff[14]= 0; // Numerical
- int2store(buff+15, field->comment.length);
- comment_length+= field->comment.length;
- set_if_bigger(int_count,field->interval_id);
- if (my_write(file,(byte*) buff,FCOMP,MYF_RW))
- DBUG_RETURN(1);
- }
- /* Write fieldnames */
- buff[0]=(uchar) NAMES_SEP_CHAR;
- 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)
- {
- String tmp((char*) buff,sizeof(buff), &my_charset_bin);
- tmp.length(0);
- it.rewind();
- int_count=0;
- while ((field=it++))
- {
- if (field->interval_id > int_count)
- {
- int_count=field->interval_id;
- tmp.append(NAMES_SEP_CHAR);
- for (const char **pos=field->interval->type_names ; *pos ; pos++)
- {
- tmp.append(*pos);
- tmp.append(NAMES_SEP_CHAR);
- }
- tmp.append(' '); // End of intervall
- }
- }
- if (my_write(file,(byte*) tmp.ptr(),tmp.length(),MYF_RW))
- DBUG_RETURN(1);
- }
- 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);
- }
- }
- DBUG_RETURN(0);
- }
- /* save an empty record on start of formfile */
- 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,
- ulong data_offset)
- {
- int error;
- Field::utype type;
- uint firstpos,null_count;
- uchar *buff,*null_pos;
- TABLE table;
- create_field *field;
- handler *handler;
- DBUG_ENTER("make_empty_rec");
- /* We need a table to generate columns for default values */
- bzero((char*) &table,sizeof(table));
- handler= get_new_handler((TABLE*) 0, table_type);
- if (!handler ||
- !(buff=(uchar*) my_malloc((uint) reclength,MYF(MY_WME | MY_ZEROFILL))))
- {
- delete handler;
- DBUG_RETURN(1);
- }
- table.in_use= current_thd;
- table.db_low_byte_first= handler->low_byte_first();
- table.blob_ptr_size=portable_sizeof_char_ptr;
- firstpos=reclength;
- null_count=0;
- if (!(table_options & HA_OPTION_PACK_RECORD))
- null_count++; // Need one bit for delete mark
- DBUG_ASSERT(data_offset == ((null_fields + null_count + 7) / 8));
- bfill(buff, (uint) data_offset, 255);
- null_pos=buff;
- List_iterator<create_field> it(create_fields);
- while ((field=it++))
- {
- Field *regfield=make_field((char*) buff+field->offset + data_offset,
- field->length,
- field->flags & NOT_NULL_FLAG ? 0:
- null_pos+null_count/8,
- 1 << (null_count & 7),
- field->pack_flag,
- field->sql_type,
- field->charset,
- field->geom_type,
- field->unireg_check,
- field->interval,
- field->field_name,
- &table);
- if (!(field->flags & NOT_NULL_FLAG))
- null_count++;
- if ((uint) (field->offset + data_offset) < firstpos &&
- regfield->type() != FIELD_TYPE_NULL)
- firstpos= field->offset + data_offset;
- type= (Field::utype) MTYP_TYPENR(field->unireg_check);
- if (field->def &&
- (regfield->real_type() != FIELD_TYPE_YEAR ||
- field->def->val_int() != 0))
- (void) field->def->save_in_field(regfield, 1);
- 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
- regfield->store(ER(ER_YES),(uint) strlen(ER(ER_YES)),system_charset_info);
- else if (type == Field::NO) // Old unireg type
- regfield->store(ER(ER_NO), (uint) strlen(ER(ER_NO)),system_charset_info);
- else
- regfield->reset();
- delete regfield;
- }
- /* Fill not used startpos */
- bfill((byte*) buff+data_offset, firstpos- (uint) data_offset, 255);
- error=(int) my_write(file,(byte*) buff, (uint) reclength,MYF_RW);
- my_free((gptr) buff,MYF(MY_FAE));
- delete handler;
- DBUG_RETURN(error);
- } /* make_empty_rec */