diff options
Diffstat (limited to 'storage/innodb_plugin/include/btr0cur.h')
| -rw-r--r-- | storage/innodb_plugin/include/btr0cur.h | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/storage/innodb_plugin/include/btr0cur.h b/storage/innodb_plugin/include/btr0cur.h index b477ad0320a..ece3621fa97 100644 --- a/storage/innodb_plugin/include/btr0cur.h +++ b/storage/innodb_plugin/include/btr0cur.h @@ -478,7 +478,10 @@ btr_estimate_n_rows_in_range( /*******************************************************************//** Estimates the number of different key values in a given index, for each n-column prefix of the index where n <= dict_index_get_n_unique(index). -The estimates are stored in the array index->stat_n_diff_key_vals. */ +The estimates are stored in the array index->stat_n_diff_key_vals. +If innodb_stats_method is nulls_ignored, we also record the number of +non-null values for each prefix and stored the estimates in +array index->stat_n_non_null_key_vals. */ UNIV_INTERN void btr_estimate_number_of_different_key_vals( @@ -509,8 +512,8 @@ file segment of the index tree. @return DB_SUCCESS or DB_OUT_OF_FILE_SPACE */ UNIV_INTERN ulint -btr_store_big_rec_extern_fields( -/*============================*/ +btr_store_big_rec_extern_fields_func( +/*=================================*/ dict_index_t* index, /*!< in: index of rec; the index tree MUST be X-latched */ buf_block_t* rec_block, /*!< in/out: block containing rec */ @@ -519,10 +522,42 @@ btr_store_big_rec_extern_fields( the "external storage" flags in offsets will not correspond to rec when this function returns */ - big_rec_t* big_rec_vec, /*!< in: vector containing fields +#ifdef UNIV_DEBUG + mtr_t* local_mtr, /*!< in: mtr containing the + latch to rec and to the tree */ +#endif /* UNIV_DEBUG */ +#if defined UNIV_DEBUG || defined UNIV_BLOB_LIGHT_DEBUG + ibool update_in_place,/*! in: TRUE if the record is updated + in place (not delete+insert) */ +#endif /* UNIV_DEBUG || UNIV_BLOB_LIGHT_DEBUG */ + const big_rec_t*big_rec_vec) /*!< in: vector containing fields to be stored externally */ - mtr_t* local_mtr); /*!< in: mtr containing the latch to - rec and to the tree */ + __attribute__((nonnull)); + +/** Stores the fields in big_rec_vec to the tablespace and puts pointers to +them in rec. The extern flags in rec will have to be set beforehand. +The fields are stored on pages allocated from leaf node +file segment of the index tree. +@param index in: clustered index; MUST be X-latched by mtr +@param b in/out: block containing rec; MUST be X-latched by mtr +@param rec in/out: clustered index record +@param offsets in: rec_get_offsets(rec, index); + the "external storage" flags in offsets will not be adjusted +@param mtr in: mini-transaction that holds x-latch on index and b +@param upd in: TRUE if the record is updated in place (not delete+insert) +@param big in: vector containing fields to be stored externally +@return DB_SUCCESS or DB_OUT_OF_FILE_SPACE */ +#ifdef UNIV_DEBUG +# define btr_store_big_rec_extern_fields(index,b,rec,offsets,mtr,upd,big) \ + btr_store_big_rec_extern_fields_func(index,b,rec,offsets,mtr,upd,big) +#elif defined UNIV_BLOB_LIGHT_DEBUG +# define btr_store_big_rec_extern_fields(index,b,rec,offsets,mtr,upd,big) \ + btr_store_big_rec_extern_fields_func(index,b,rec,offsets,upd,big) +#else +# define btr_store_big_rec_extern_fields(index,b,rec,offsets,mtr,upd,big) \ + btr_store_big_rec_extern_fields_func(index,b,rec,offsets,big) +#endif + /*******************************************************************//** Frees the space in an externally stored field to the file space management if the field in data is owned the externally stored field, |