1
1
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
2
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
4
* Copyright (C) 2008 Sun Microsystems, Inc.
4
* Copyright (C) 2008 Sun Microsystems
6
6
* This program is free software; you can redistribute it and/or modify
7
7
* it under the terms of the GNU General Public License as published by
21
21
/* Structs that defines the Table */
25
23
#ifndef DRIZZLED_TABLE_H
26
24
#define DRIZZLED_TABLE_H
29
27
#include <boost/dynamic_bitset.hpp>
31
#include <drizzled/order.h>
32
#include <drizzled/filesort_info.h>
33
#include <drizzled/natural_join_column.h>
34
#include <drizzled/field_iterator.h>
35
#include <drizzled/cursor.h>
36
#include <drizzled/lex_string.h>
37
#include <drizzled/table/instance.h>
38
#include <drizzled/atomics.h>
39
#include <drizzled/query_id.h>
41
#include <drizzled/visibility.h>
29
#include "drizzled/order.h"
30
#include "drizzled/filesort_info.h"
31
#include "drizzled/natural_join_column.h"
32
#include "drizzled/field_iterator.h"
33
#include "drizzled/cursor.h"
34
#include "drizzled/lex_string.h"
35
#include "drizzled/table_list.h"
36
#include "drizzled/definition/table.h"
37
#include "drizzled/atomics.h"
38
#include "drizzled/query_id.h"
49
44
class Item_subselect;
45
class Select_Lex_Unit;
50
48
class SecurityContext;
52
class Select_Lex_Unit;
54
namespace field { class Epoch; }
55
namespace plugin { class StorageEngine; }
50
class Field_timestamp;
53
extern uint64_t refresh_version;
57
55
typedef enum enum_table_category TABLE_CATEGORY;
58
56
typedef struct st_columndef MI_COLUMNDEF;
61
59
* Class representing a set of records, either in a temporary,
62
60
* normal, or derived table.
64
class DRIZZLED_API Table
66
64
Field **field; /**< Pointer to fields collection */
69
67
Field **getFields() const
162
158
KeyInfo *key_info; /**< data of keys in database */
163
159
Field *next_number_field; /**< Set if next_number is activated. @TODO What the heck is the difference between this and the next member? */
164
160
Field *found_next_number_field; /**< Points to the "next-number" field (autoincrement field) */
165
field::Epoch *timestamp_field; /**< Points to the auto-setting timestamp field, if any */
161
Field_timestamp *timestamp_field; /**< Points to the auto-setting timestamp field, if any */
167
163
TableList *pos_in_table_list; /* Element referring to this table */
284
280
statement then the variable contains TIMESTAMP_NO_AUTO_SET (i.e. 0).
286
282
Value of this variable is set for each statement in open_table() and
287
if needed cleared later in statement processing code (see update_query()
283
if needed cleared later in statement processing code (see mysql_update()
290
286
timestamp_auto_set_type timestamp_field_type;
312
308
The set is implemented as a bitmap.
314
310
key_map keys_in_use_for_query;
316
311
/* Map of keys that can be used to calculate GROUP BY without sorting */
317
312
key_map keys_in_use_for_group_by;
319
313
/* Map of keys that can be used to calculate ORDER BY without sorting */
320
314
key_map keys_in_use_for_order_by;
417
inline uint8_t getBlobPtrSize() const { return getShare()->sizeBlobPtr(); }
418
inline uint32_t getNullBytes() const { return getShare()->null_bytes; }
419
inline uint32_t getNullFields() const { return getShare()->null_fields; }
411
inline uint8_t getBlobPtrSize() { return getShare()->blob_ptr_size; }
412
inline uint32_t getNullBytes() { return getShare()->null_bytes; }
413
inline uint32_t getNullFields() { return getShare()->null_fields; }
420
414
inline unsigned char *getDefaultValues() { return getMutableShare()->getDefaultValues(); }
421
415
inline const char *getSchemaName() const { return getShare()->getSchemaName(); }
422
416
inline const char *getTableName() const { return getShare()->getTableName(); }
424
inline bool isDatabaseLowByteFirst() const { return getShare()->db_low_byte_first; } /* Portable row format */
418
inline bool isDatabaseLowByteFirst() { return getShare()->db_low_byte_first; } /* Portable row format */
425
419
inline bool isNameLock() const { return open_placeholder; }
427
uint32_t index_flags(uint32_t idx) const;
421
uint32_t index_flags(uint32_t idx) const
423
return getShare()->storage_engine->index_flags(getShare()->getKeyInfo(idx).algorithm);
429
426
inline plugin::StorageEngine *getEngine() const /* table_type for handler */
431
return getShare()->getEngine();
428
return getShare()->storage_engine;
434
431
Cursor &getCursor() const /* table_type for handler */
555
552
return db_stat || open_placeholder;
559
555
Is this instance of the table should be reopen or represents a name-lock?
561
bool needs_reopen_or_name_lock() const;
557
inline bool needs_reopen_or_name_lock()
559
return getShare()->getVersion() != refresh_version;
564
563
clean/setup table fields and map.
579
578
void filesort_free_buffers(bool full= false);
580
579
void intern_close_table();
582
void print_error(int error, myf errflag) const;
581
void print_error(int error, myf errflag)
583
getShare()->storage_engine->print_error(error, errflag, *this);
586
588
key if error because of duplicated keys
588
uint32_t get_dup_key(int error) const
590
uint32_t get_dup_key(int error)
590
592
cursor->errkey = (uint32_t) -1;
591
593
if (error == HA_ERR_FOUND_DUPP_KEY || error == HA_ERR_FOREIGN_DUPLICATE_KEY ||
602
604
bool operator<(const Table &right) const
604
return getShare()->getCacheKey() < right.getShare()->getCacheKey();
606
int result= strcasecmp(this->getShare()->getSchemaName(), right.getShare()->getSchemaName());
614
result= strcasecmp(this->getShare()->getTableName(), right.getShare()->getTableName());
622
if (this->getShare()->getTableProto()->type() < right.getShare()->getTableProto()->type())
607
628
static bool compare(const Table *a, const Table *b)
829
850
namespace optimizer { class SqlSelect; }
831
852
void change_double_for_sort(double nr,unsigned char *to);
853
double my_double_round(double value, int64_t dec, bool dec_unsigned,
832
855
int get_quick_record(optimizer::SqlSelect *select);
834
857
void find_date(char *pos,uint32_t *vek,uint32_t flag);
837
860
ulong get_form_pos(int file, unsigned char *head, TYPELIB *save_names);
838
861
void append_unescaped(String *res, const char *pos, uint32_t length);
840
DRIZZLED_API int rename_file_ext(const char * from,const char * to,const char * ext);
863
int rename_file_ext(const char * from,const char * to,const char * ext);
841
864
bool check_column_name(const char *name);
865
bool check_db_name(Session *session, SchemaIdentifier &schema);
842
866
bool check_table_name(const char *name, uint32_t length);
844
868
} /* namespace drizzled */
846
#include <drizzled/table/singular.h>
847
#include <drizzled/table/concurrent.h>
870
#include "drizzled/table/instance.h"
871
#include "drizzled/table/concurrent.h"
849
873
#endif /* DRIZZLED_TABLE_H */