21
21
/* Structs that defines the Table */
23
#ifndef DRIZZLED_TABLE_H
24
#define DRIZZLED_TABLE_H
27
28
#include <boost/dynamic_bitset.hpp>
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"
30
#include <drizzled/order.h>
31
#include <drizzled/filesort_info.h>
32
#include <drizzled/natural_join_column.h>
33
#include <drizzled/field_iterator.h>
34
#include <drizzled/cursor.h>
35
#include <drizzled/lex_string.h>
36
#include <drizzled/table/instance.h>
37
#include <drizzled/atomics.h>
39
#include <drizzled/visibility.h>
44
46
class Item_subselect;
47
class SecurityContext;
45
49
class Select_Lex_Unit;
48
class SecurityContext;
50
class Field_timestamp;
53
extern uint64_t refresh_version;
51
namespace field { class Epoch; }
52
namespace plugin { class StorageEngine; }
55
54
typedef enum enum_table_category TABLE_CATEGORY;
56
55
typedef struct st_columndef MI_COLUMNDEF;
56
typedef uint64_t query_id_t;
59
59
* Class representing a set of records, either in a temporary,
60
60
* normal, or derived table.
62
class DRIZZLED_API Table
64
64
Field **field; /**< Pointer to fields collection */
67
67
Field **getFields() const
158
160
KeyInfo *key_info; /**< data of keys in database */
159
161
Field *next_number_field; /**< Set if next_number is activated. @TODO What the heck is the difference between this and the next member? */
160
162
Field *found_next_number_field; /**< Points to the "next-number" field (autoincrement field) */
161
Field_timestamp *timestamp_field; /**< Points to the auto-setting timestamp field, if any */
163
field::Epoch *timestamp_field; /**< Points to the auto-setting timestamp field, if any */
163
165
TableList *pos_in_table_list; /* Element referring to this table */
280
282
statement then the variable contains TIMESTAMP_NO_AUTO_SET (i.e. 0).
282
284
Value of this variable is set for each statement in open_table() and
283
if needed cleared later in statement processing code (see mysql_update()
285
if needed cleared later in statement processing code (see update_query()
286
288
timestamp_auto_set_type timestamp_field_type;
308
310
The set is implemented as a bitmap.
310
312
key_map keys_in_use_for_query;
311
314
/* Map of keys that can be used to calculate GROUP BY without sorting */
312
315
key_map keys_in_use_for_group_by;
313
317
/* Map of keys that can be used to calculate ORDER BY without sorting */
314
318
key_map keys_in_use_for_order_by;
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; }
415
inline uint8_t getBlobPtrSize() const { return getShare()->sizeBlobPtr(); }
416
inline uint32_t getNullBytes() const { return getShare()->null_bytes; }
417
inline uint32_t getNullFields() const { return getShare()->null_fields; }
414
418
inline unsigned char *getDefaultValues() { return getMutableShare()->getDefaultValues(); }
415
419
inline const char *getSchemaName() const { return getShare()->getSchemaName(); }
416
420
inline const char *getTableName() const { return getShare()->getTableName(); }
418
inline bool isDatabaseLowByteFirst() { return getShare()->db_low_byte_first; } /* Portable row format */
422
inline bool isDatabaseLowByteFirst() const { return getShare()->db_low_byte_first; } /* Portable row format */
419
423
inline bool isNameLock() const { return open_placeholder; }
421
uint32_t index_flags(uint32_t idx) const
423
return getShare()->storage_engine->index_flags(getShare()->getKeyInfo(idx).algorithm);
425
uint32_t index_flags(uint32_t idx) const;
426
427
inline plugin::StorageEngine *getEngine() const /* table_type for handler */
428
return getShare()->storage_engine;
429
return getShare()->getEngine();
431
432
Cursor &getCursor() const /* table_type for handler */
468
469
* true when out of memory
470
bool fill_item_list(List<Item> *item_list) const;
471
void fill_item_list(List<Item>&) const;
471
472
void clear_column_bitmaps(void);
472
473
void prepare_for_position(void);
473
474
void mark_columns_used_by_index_no_reset(uint32_t index, boost::dynamic_bitset<>& bitmap);
552
553
return db_stat || open_placeholder;
555
557
Is this instance of the table should be reopen or represents a name-lock?
557
inline bool needs_reopen_or_name_lock()
559
return getShare()->getVersion() != refresh_version;
559
bool needs_reopen_or_name_lock() const;
563
562
clean/setup table fields and map.
578
577
void filesort_free_buffers(bool full= false);
579
578
void intern_close_table();
581
void print_error(int error, myf errflag)
583
getShare()->storage_engine->print_error(error, errflag, *this);
580
void print_error(int error, myf errflag) const;
588
584
key if error because of duplicated keys
590
uint32_t get_dup_key(int error)
586
uint32_t get_dup_key(int error) const
592
588
cursor->errkey = (uint32_t) -1;
593
589
if (error == HA_ERR_FOUND_DUPP_KEY || error == HA_ERR_FOREIGN_DUPLICATE_KEY ||
831
827
namespace optimizer { class SqlSelect; }
833
829
void change_double_for_sort(double nr,unsigned char *to);
834
double my_double_round(double value, int64_t dec, bool dec_unsigned,
836
830
int get_quick_record(optimizer::SqlSelect *select);
838
832
void find_date(char *pos,uint32_t *vek,uint32_t flag);
841
835
ulong get_form_pos(int file, unsigned char *head, TYPELIB *save_names);
842
836
void append_unescaped(String *res, const char *pos, uint32_t length);
844
int rename_file_ext(const char * from,const char * to,const char * ext);
838
DRIZZLED_API int rename_file_ext(const char * from,const char * to,const char * ext);
845
839
bool check_column_name(const char *name);
846
bool check_db_name(Session *session, SchemaIdentifier &schema);
847
840
bool check_table_name(const char *name, uint32_t length);
849
842
} /* namespace drizzled */
851
#include "drizzled/table/instance.h"
852
#include "drizzled/table/concurrent.h"
844
#include <drizzled/table/singular.h>
845
#include <drizzled/table/concurrent.h>
854
#endif /* DRIZZLED_TABLE_H */