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Default table character set has been added:

Browse Source 
CREATE TABLE a (field,...) TYPE=type CHARSET=cset;


sql/handler.h:
  New flag to remember whether new table default charset 
  has been passed in ALTER TABLE
sql/lex.h:
  New language symbol
sql/sql_show.cc:
  Display default table charset if exists
sql/sql_table.cc:
  Check table charset before default server charset
sql/sql_yacc.yy:
  New create table option: default table character set
sql/table.cc:
  Table charset
sql/unireg.cc:
  field->charset must be initialized before. So assumes it is not NULL
This commit is contained in:
unknown
2002-06-19 21:21:30 +05:00
parent 2ec3617476
commit e38f8e8ce2
7 changed files with 39 additions and 14 deletions
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1
sql/handler.h
View File

@@ -137,6 +137,7 @@ enum row_type { ROW_TYPE_NOT_USED=-1, ROW_TYPE_DEFAULT, ROW_TYPE_FIXED,
#define HA_CREATE_USED_MAX_ROWS 32
#define HA_CREATE_USED_AVG_ROW_LENGTH 64
#define HA_CREATE_USED_PACK_KEYS 128
#define HA_CREATE_USED_CHARSET 256
typedef struct st_thd_trans {
void *bdb_tid;

1
sql/lex.h
View File

@@ -82,6 +82,7 @@ static SYMBOL symbols[] = {
{ "CASE", SYM(CASE_SYM),0,0},
{ "CHAR", SYM(CHAR_SYM),0,0},
{ "CHARACTER", SYM(CHAR_SYM),0,0},
{ "CHARSET", SYM(CHARSET),0,0},
{ "CHANGE", SYM(CHANGE),0,0},
{ "CHANGED", SYM(CHANGED),0,0},
{ "CHECK", SYM(CHECK_SYM),0,0},

8
sql/sql_show.cc
View File

@@ -1156,6 +1156,12 @@ store_create_info(THD *thd, TABLE *table, String *packet)
char buff[128];
char* p;
if (table->table_charset)
{
packet->append(" CHARSET=");
packet->append(table->table_charset->name);
}
if (table->min_rows)
{
packet->append(" MIN_ROWS=");
@@ -1386,7 +1392,7 @@ int mysqld_show_charsets(THD *thd, const char *wild)
net_store_data(&packet2,(uint32) cs->mbmaxlen);
if (my_net_write(&thd->net, (char*) packet2.ptr(),packet2.length()))
goto err; /* purecov: inspected */
goto err;
}
}
send_eof(&thd->net);

5
sql/sql_table.cc
View File

@@ -375,6 +375,9 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
sql_field->offset= pos;
if (MTYP_TYPENR(sql_field->unireg_check) == Field::NEXT_NUMBER)
auto_increment++;
if(!sql_field->charset)
sql_field->charset = create_info->table_charset ?
create_info->table_charset : default_charset_info;
pos+=sql_field->pack_length;
}
if (auto_increment > 1)
@@ -1645,6 +1648,8 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
create_info->max_rows=table->max_rows;
if (!(used_fields & HA_CREATE_USED_AVG_ROW_LENGTH))
create_info->avg_row_length=table->avg_row_length;
if (!(used_fields & HA_CREATE_USED_CHARSET))
create_info->table_charset=table->table_charset;
table->file->update_create_info(create_info);
if ((create_info->table_options &

24
sql/sql_yacc.yy
View File

@@ -162,6 +162,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%token CACHE_SYM
%token CASCADE
%token CAST_SYM
%token CHARSET
%token CHECKSUM_SYM
%token CHECK_SYM
%token CIPHER
@@ -767,7 +768,7 @@ create:
bzero((char*) &lex->create_info,sizeof(lex->create_info));
lex->create_info.options=$2 | $4;
lex->create_info.db_type= default_table_type;
lex->create_info.table_charset=default_charset_info;
lex->create_info.table_charset=NULL;
}
create2
@@ -881,6 +882,17 @@ create_table_option:
table_list->next=0;
lex->create_info.used_fields|= HA_CREATE_USED_UNION;
}
| CHARSET EQ ident
{
CHARSET_INFO *cs=get_charset_by_name($3.str,MYF(MY_WME));
if (!cs)
{
net_printf(&current_thd->net,ER_UNKNOWN_CHARACTER_SET,$3);
YYABORT;
}
Lex->create_info.table_charset=cs;
Lex->create_info.used_fields|= HA_CREATE_USED_CHARSET;
}
| INSERT_METHOD EQ merge_insert_types { Lex->create_info.merge_insert_method= $3; Lex->create_info.used_fields|= HA_CREATE_USED_INSERT_METHOD;}
| DATA_SYM DIRECTORY_SYM EQ TEXT_STRING { Lex->create_info.data_file_name= $4.str; }
| INDEX DIRECTORY_SYM EQ TEXT_STRING { Lex->create_info.index_file_name= $4.str; };
@@ -965,7 +977,7 @@ field_spec:
LEX *lex=Lex;
lex->length=lex->dec=0; lex->type=0; lex->interval=0;
lex->default_value=lex->comment=0;
lex->charset=default_charset_info;
lex->charset=NULL;
}
type opt_attribute
{
@@ -1116,8 +1128,8 @@ attribute:
| COMMENT_SYM text_literal { Lex->comment= $2; };
opt_binary:
/* empty */ { Lex->charset=default_charset_info; }
| BINARY { Lex->type|=BINARY_FLAG; Lex->charset=default_charset_info; }
/* empty */ { Lex->charset=NULL; }
| BINARY { Lex->type|=BINARY_FLAG; Lex->charset=NULL; }
| CHAR_SYM SET ident
{
CHARSET_INFO *cs=get_charset_by_name($3.str,MYF(MY_WME));
@@ -1130,7 +1142,7 @@ opt_binary:
};
default_charset:
/* empty */ { Lex->charset-default_charset_info; }
/* empty */ { Lex->charset=NULL; }
| DEFAULT CHAR_SYM SET ident
{
CHARSET_INFO *cs=get_charset_by_name($4.str,MYF(MY_WME));
@@ -1259,7 +1271,7 @@ alter:
bzero((char*) &lex->create_info,sizeof(lex->create_info));
lex->create_info.db_type= DB_TYPE_DEFAULT;
lex->create_info.row_type= ROW_TYPE_NOT_USED;
lex->create_info.table_charset=default_charset_info;
lex->create_info.table_charset=NULL;
lex->alter_keys_onoff=LEAVE_AS_IS;
lex->simple_alter=1;
}

11
sql/table.cc
View File

@@ -118,7 +118,7 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
outparam->raid_chunks= head[42];
outparam->raid_chunksize= uint4korr(head+43);
if (!(outparam->table_charset=get_charset((uint) head[38],MYF(0))))
outparam->table_charset=default_charset_info;
outparam->table_charset=NULL; // QQ display error message?
null_field_first=1;
}
outparam->db_record_offset=1;
@@ -358,7 +358,7 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
uint comment_length=uint2korr(strpos+13);
field_type=(enum_field_types) (uint) strpos[11];
if (!(charset=get_charset((uint) strpos[12], MYF(0))))
charset=outparam->table_charset;
charset=outparam->table_charset?outparam->table_charset:default_charset_info;
if (!comment_length)
{
comment.str= (char*) "";
@@ -375,7 +375,7 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
{
/* old frm file */
field_type= (enum_field_types) f_packtype(pack_flag);
charset=outparam->table_charset;
charset=outparam->table_charset?outparam->table_charset:default_charset_info;
bzero((char*) &comment, sizeof(comment));
}
*field_ptr=reg_field=
@@ -1041,7 +1041,7 @@ File create_frm(register my_string name, uint reclength, uchar *fileinfo,
int2store(fileinfo+30,create_info->table_options);
fileinfo[32]=0; // No filename anymore
int4store(fileinfo+34,create_info->avg_row_length);
fileinfo[38]= create_info->table_charset->number;
fileinfo[38]= create_info->table_charset?create_info->table_charset->number:0;
fileinfo[40]= (uchar) create_info->row_type;
fileinfo[41]= (uchar) create_info->raid_type;
fileinfo[42]= (uchar) create_info->raid_chunks;
@@ -1072,6 +1072,7 @@ void update_create_info_from_table(HA_CREATE_INFO *create_info, TABLE *table)
create_info->raid_type=table->raid_type;
create_info->raid_chunks=table->raid_chunks;
create_info->raid_chunksize=table->raid_chunksize;
create_info->table_charset=table->table_charset;
DBUG_VOID_RETURN;
}
@@ -1094,7 +1095,7 @@ char *get_field(MEM_ROOT *mem, TABLE *table, uint fieldnr)
{
Field *field=table->field[fieldnr];
char buff[MAX_FIELD_WIDTH];
String str(buff,sizeof(buff),table->table_charset);
String str(buff,sizeof(buff),default_charset_info);
field->val_str(&str,&str);
uint length=str.length();
if (!length)

3
sql/unireg.cc
View File

@@ -459,8 +459,7 @@ static bool pack_fields(File file,List<create_field> &create_fields)
int2store(buff+8,field->unireg_check);
buff[10]= (uchar) field->interval_id;
buff[11]= (uchar) field->sql_type;
buff[12]= (uchar) (field->charset ? field->charset->number :
default_charset_info->number);
buff[12]= (uchar) field->charset->number;
int2store(buff+13, field->comment.length);
comment_length+= field->comment.length;
set_if_bigger(int_count,field->interval_id);