diff options
Diffstat (limited to 'storage/innobase/include/row0upd.h')
| -rw-r--r-- | storage/innobase/include/row0upd.h | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/storage/innobase/include/row0upd.h b/storage/innobase/include/row0upd.h index f7bec6f7561..c275c1da78e 100644 --- a/storage/innobase/include/row0upd.h +++ b/storage/innobase/include/row0upd.h @@ -126,8 +126,8 @@ UNIV_INTERN void row_upd_index_entry_sys_field( /*==========================*/ - const dtuple_t* entry, /*!< in: index entry, where the memory buffers - for sys fields are already allocated: + dtuple_t* entry, /*!< in/out: index entry, where the memory + buffers for sys fields are already allocated: the function just copies the new values to them */ dict_index_t* index, /*!< in: clustered index */ @@ -167,8 +167,11 @@ row_upd_changes_field_size_or_external( const upd_t* update);/*!< in: update vector */ #endif /* !UNIV_HOTBACKUP */ /***********************************************************//** -Replaces the new column values stored in the update vector to the record -given. No field size changes are allowed. */ +Replaces the new column values stored in the update vector to the +record given. No field size changes are allowed. This function is +usually invoked on a clustered index. The only use case for a +secondary index is row_ins_sec_index_entry_by_modify() or its +counterpart in ibuf_insert_to_index_page(). */ UNIV_INTERN void row_upd_rec_in_place( @@ -277,16 +280,29 @@ NOTE: we compare the fields as binary strings! @return TRUE if update vector changes an ordering field in the index record */ UNIV_INTERN ibool -row_upd_changes_ord_field_binary( -/*=============================*/ +row_upd_changes_ord_field_binary_func( +/*==================================*/ + dict_index_t* index, /*!< in: index of the record */ + const upd_t* update, /*!< in: update vector for the row; NOTE: the + field numbers in this MUST be clustered index + positions! */ +#ifdef UNIV_DEBUG + const que_thr_t*thr, /*!< in: query thread */ +#endif /* UNIV_DEBUG */ const dtuple_t* row, /*!< in: old value of row, or NULL if the row and the data values in update are not known when this function is called, e.g., at compile time */ - dict_index_t* index, /*!< in: index of the record */ - const upd_t* update);/*!< in: update vector for the row; NOTE: the - field numbers in this MUST be clustered index - positions! */ + const row_ext_t*ext) /*!< NULL, or prefixes of the externally + stored columns in the old row */ + __attribute__((nonnull(1,2), warn_unused_result)); +#ifdef UNIV_DEBUG +# define row_upd_changes_ord_field_binary(index,update,thr,row,ext) \ + row_upd_changes_ord_field_binary_func(index,update,thr,row,ext) +#else /* UNIV_DEBUG */ +# define row_upd_changes_ord_field_binary(index,update,thr,row,ext) \ + row_upd_changes_ord_field_binary_func(index,update,row,ext) +#endif /* UNIV_DEBUG */ /***********************************************************//** Checks if an update vector changes an ordering field of an index record. This function is fast if the update vector is short or the number of ordering @@ -459,11 +475,16 @@ struct upd_node_struct{ #define UPD_NODE_INSERT_CLUSTERED 3 /* clustered index record should be inserted, old record is already delete marked */ -#define UPD_NODE_UPDATE_ALL_SEC 4 /* an ordering field of the clustered +#define UPD_NODE_INSERT_BLOB 4 /* clustered index record should be + inserted, old record is already + delete-marked; non-updated BLOBs + should be inherited by the new record + and disowned by the old record */ +#define UPD_NODE_UPDATE_ALL_SEC 5 /* an ordering field of the clustered index record was changed, or this is a delete operation: should update all the secondary index records */ -#define UPD_NODE_UPDATE_SOME_SEC 5 /* secondary index entries should be +#define UPD_NODE_UPDATE_SOME_SEC 6 /* secondary index entries should be looked at and updated if an ordering field changed */ |