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/* 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 */
/* The old structures from unireg */
struct st_table;
class Field;
typedef struct st_date_format { /* How to print date */
uint pos[6]; /* Positions to YY.MM.DD HH:MM:SS */
} DATE_FORMAT;
typedef struct st_keyfile_info { /* used with ha_info() */
byte ref[MAX_REFLENGTH]; /* Pointer to current row */
byte dupp_ref[MAX_REFLENGTH]; /* Pointer to dupp row */
uint ref_length; /* Length of ref (1-8) */
uint block_size; /* index block size */
File filenr; /* (uniq) filenr for table */
ha_rows records; /* Records i datafilen */
ha_rows deleted; /* Deleted records */
ulonglong data_file_length; /* Length off data file */
ulonglong max_data_file_length; /* Length off data file */
ulonglong index_file_length;
ulonglong max_index_file_length;
ulonglong delete_length; /* Free bytes */
ulonglong auto_increment_value;
int errkey,sortkey; /* Last errorkey and sorted by */
time_t create_time; /* When table was created */
time_t check_time;
time_t update_time;
ulong mean_rec_length; /* physical reclength */
} KEYFILE_INFO;
typedef struct st_key_part_info { /* Info about a key part */
Field *field;
uint offset; /* offset in record (from 0) */
uint null_offset; // Offset to null_bit in record
uint16 length; /* Length of key_part */
uint16 store_length;
uint16 key_type;
uint16 fieldnr; /* Fieldnum in UNIREG */
uint8 key_part_flag; /* 0 or HA_REVERSE_SORT */
uint8 type;
uint8 null_bit; // Position to null_bit
} KEY_PART_INFO ;
typedef struct st_key {
uint key_length; /* Tot length of key */
uint flags; /* dupp key and pack flags */
uint key_parts; /* How many key_parts */
uint extra_length;
uint usable_key_parts; /* Should normally be = key_parts */
KEY_PART_INFO *key_part;
char *name; /* Name of key */
ulong *rec_per_key; /* Key part distribution */
} KEY;
struct st_join_table;
typedef struct st_reginfo { /* Extra info about reg */
struct st_join_table *join_tab; /* Used by SELECT() */
enum thr_lock_type lock_type; /* How database is used */
bool not_exists_optimize;
bool impossible_range;
} REGINFO;
struct st_read_record; /* For referense later */
class SQL_SELECT;
class THD;
class handler;
typedef struct st_read_record { /* Parameter to read_record */
struct st_table *table; /* Head-form */
handler *file;
struct st_table **forms; /* head and ref forms */
int (*read_record)(struct st_read_record *);
THD *thd;
SQL_SELECT *select;
uint cache_records;
uint ref_length,struct_length,reclength,rec_cache_size,error_offset;
uint index;
byte *ref_pos; /* pointer to form->refpos */
byte *record;
byte *cache,*cache_pos,*cache_end,*read_positions;
IO_CACHE *io_cache;
bool print_error;
} READ_RECORD;
enum timestamp_type { TIMESTAMP_NONE, TIMESTAMP_DATE, TIMESTAMP_FULL,
TIMESTAMP_TIME };
typedef struct st_time {
uint year,month,day,hour,minute,second,second_part;
bool neg;
timestamp_type time_type;
} TIME;
typedef struct {
long year,month,day,hour,minute,second,second_part;
bool neg;
} INTERVAL;
enum SHOW_TYPE { SHOW_LONG,SHOW_CHAR,SHOW_INT,SHOW_CHAR_PTR,SHOW_BOOL,
SHOW_MY_BOOL,SHOW_OPENTABLES,SHOW_STARTTIME,SHOW_QUESTION,
SHOW_LONG_CONST, SHOW_INT_CONST};
struct show_var_st {
const char *name;
char *value;
SHOW_TYPE type;
};
typedef struct lex_string {
char *str;
uint length;
} LEX_STRING;
typedef struct st_lex_user {
LEX_STRING user, host, password;
} LEX_USER;
/* Bits in form->update */
#define REG_MAKE_DUPP 1 /* Make a copy of record when read */
#define REG_NEW_RECORD 2 /* Write a new record if not found */
#define REG_UPDATE 4 /* Uppdate record */
#define REG_DELETE 8 /* Delete found record */
#define REG_PROG 16 /* User is updateing database */
#define REG_CLEAR_AFTER_WRITE 32
#define REG_MAY_BE_UPDATED 64
#define REG_AUTO_UPDATE 64 /* Used in D-forms for scroll-tables */
#define REG_OVERWRITE 128
#define REG_SKIPP_DUPP 256
/* Bits in form->status */
#define STATUS_NO_RECORD (1+2) /* Record isn't usably */
#define STATUS_GARBAGE 1
#define STATUS_NOT_FOUND 2 /* No record in database when neaded */
#define STATUS_NO_PARENT 4 /* Parent record wasn't found */
#define STATUS_NOT_READ 8 /* Record isn't read */
#define STATUS_UPDATED 16 /* Record is updated by formula */
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