diff options
Diffstat (limited to 'storage/innobase/include/dict0mem.h')
| -rw-r--r-- | storage/innobase/include/dict0mem.h | 137 |
1 files changed, 7 insertions, 130 deletions
diff --git a/storage/innobase/include/dict0mem.h b/storage/innobase/include/dict0mem.h index 4ee19f96008..019e20680e5 100644 --- a/storage/innobase/include/dict0mem.h +++ b/storage/innobase/include/dict0mem.h @@ -337,12 +337,6 @@ use its own tablespace instead of the system tablespace. */ index tables) of a FTS table are in HEX format. */ #define DICT_TF2_FTS_AUX_HEX_NAME 64 -/** Intrinsic table bit -Intrinsic table is table created internally by MySQL modules viz. Optimizer, -FTS, etc.... Intrinsic table has all the properties of the normal table except -it is not created by user and so not visible to end-user. */ -#define DICT_TF2_INTRINSIC 128 - /** Encryption table bit. */ #define DICT_TF2_ENCRYPTION 256 @@ -859,95 +853,6 @@ struct zip_pad_info_t { a certain index.*/ #define STAT_DEFRAG_DATA_SIZE_N_SAMPLE 10 -/** If key is fixed length key then cache the record offsets on first -computation. This will help save computation cycle that generate same -redundant data. */ -class rec_cache_t -{ -public: - /** Constructor */ - rec_cache_t() - : - rec_size(), - offsets(), - sz_of_offsets(), - fixed_len_key(), - offsets_cached(), - key_has_null_cols() - { - /* Do Nothing. */ - } - -public: - /** Record size. (for fixed length key record size is constant) */ - ulint rec_size; - - /** Holds reference to cached offsets for record. */ - ulint* offsets; - - /** Size of offset array */ - uint32_t sz_of_offsets; - - /** If true, then key is fixed length key. */ - bool fixed_len_key; - - /** If true, then offset has been cached for re-use. */ - bool offsets_cached; - - /** If true, then key part can have columns that can take - NULL values. */ - bool key_has_null_cols; -}; - -/** Cache position of last inserted or selected record by caching record -and holding reference to the block where record resides. -Note: We don't commit mtr and hold it beyond a transaction lifetime as this is -a special case (intrinsic table) that are not shared accross connection. */ -class last_ops_cur_t -{ -public: - /** Constructor */ - last_ops_cur_t() - : - rec(), - block(), - mtr(), - disable_caching(), - invalid() - { - /* Do Nothing. */ - } - - /* Commit mtr and re-initialize cache record and block to NULL. */ - void release() - { - if (mtr.is_active()) { - mtr_commit(&mtr); - } - rec = NULL; - block = NULL; - invalid = false; - } - -public: - /** last inserted/selected record. */ - rec_t* rec; - - /** block where record reside. */ - buf_block_t* block; - - /** active mtr that will be re-used for next insert/select. */ - mtr_t mtr; - - /** disable caching. (disabled when table involves blob/text.) */ - bool disable_caching; - - /** If index structure is undergoing structural change viz. - split then invalidate the cached position as it would be no more - remain valid. Will be re-cached on post-split insert. */ - bool invalid; -}; - /** "GEN_CLUST_INDEX" is the name reserved for InnoDB default system clustered index when there is no primary key. */ const char innobase_index_reserve_name[] = "GEN_CLUST_INDEX"; @@ -990,18 +895,15 @@ struct dict_index_t{ /*!< number of columns the user defined to be in the index: in the internal representation we add more columns */ - unsigned allow_duplicates:1; - /*!< if true, allow duplicate values - even if index is created with unique - constraint */ unsigned nulls_equal:1; /*!< if true, SQL NULL == SQL NULL */ - unsigned disable_ahi:1; - /*!< in true, then disable AHI. - Currently limited to intrinsic - temporary table as index id is not - unqiue for such table which is one of the - validation criterion for ahi. */ +#ifdef MYSQL_INDEX_DISABLE_AHI + unsigned disable_ahi:1; + /*!< whether to disable the + adaptive hash index. + Maybe this could be disabled for + temporary tables? */ +#endif unsigned n_uniq:10;/*!< number of fields from the beginning which are enough to determine an index entry uniquely */ @@ -1098,19 +1000,6 @@ struct dict_index_t{ /* in which slot the next sample should be saved. */ /* @} */ - last_ops_cur_t* last_ins_cur; - /*!< cache the last insert position. - Currently limited to auto-generated - clustered index on intrinsic table only. */ - last_ops_cur_t* last_sel_cur; - /*!< cache the last selected position - Currently limited to intrinsic table only. */ - rec_cache_t rec_cache; - /*!< cache the field that needs to be - re-computed on each insert. - Limited to intrinsic table as this is common - share and can't be used without protection - if table is accessible to multiple-threads. */ rtr_ssn_t rtr_ssn;/*!< Node sequence number for RTree */ rtr_info_track_t* rtr_track;/*!< tracking all R-Tree search cursors */ @@ -1874,18 +1763,6 @@ public: /** Timestamp of the last modification of this table. */ time_t update_time; - /** row-id counter for use by intrinsic table for getting row-id. - Given intrinsic table semantics, row-id can be locally maintained - instead of getting it from central generator which involves mutex - locking. */ - ib_uint64_t sess_row_id; - - /** trx_id counter for use by intrinsic table for getting trx-id. - Intrinsic table are not shared so don't need a central trx-id - but just need a increased counter to track consistent view while - proceeding SELECT as part of UPDATE. */ - ib_uint64_t sess_trx_id; - #endif /* !UNIV_HOTBACKUP */ bool is_encrypted; |