diff options
Diffstat (limited to 'storage/innobase/include/row0upd.h')
| -rw-r--r-- | storage/innobase/include/row0upd.h | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/storage/innobase/include/row0upd.h b/storage/innobase/include/row0upd.h index 77708d7d568..01fc6cda6ae 100644 --- a/storage/innobase/include/row0upd.h +++ b/storage/innobase/include/row0upd.h @@ -1,7 +1,7 @@ /***************************************************************************** Copyright (c) 1996, 2016, Oracle and/or its affiliates. All Rights Reserved. -Copyright (c) 2018, MariaDB Corporation. +Copyright (c) 2017, 2018, MariaDB Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -27,7 +27,6 @@ Created 12/27/1996 Heikki Tuuri #ifndef row0upd_h #define row0upd_h -#include "univ.i" #include "data0data.h" #include "row0types.h" #include "btr0types.h" @@ -234,27 +233,19 @@ row_upd_build_difference_binary( mem_heap_t* heap, TABLE* mysql_table) MY_ATTRIBUTE((nonnull(1,2,3,7), warn_unused_result)); -/***********************************************************//** -Replaces the new column values stored in the update vector to the index entry -given. */ +/** Apply an update vector to an index entry. +@param[in,out] entry index entry to be updated; the clustered index record + must be covered by a lock or a page latch to prevent + deletion (rollback or purge) +@param[in] index index of the entry +@param[in] update update vector built for the entry +@param[in,out] heap memory heap for copying off-page columns */ void row_upd_index_replace_new_col_vals_index_pos( -/*=========================================*/ - dtuple_t* entry, /*!< in/out: index entry where replaced; - the clustered index record must be - covered by a lock or a page latch to - prevent deletion (rollback or purge) */ - dict_index_t* index, /*!< in: index; NOTE that this may also be a - non-clustered index */ - const upd_t* update, /*!< in: an update vector built for the index so - that the field number in an upd_field is the - index position */ - ibool order_only, - /*!< in: if TRUE, limit the replacement to - ordering fields of index; note that this - does not work for non-clustered indexes. */ - mem_heap_t* heap) /*!< in: memory heap for allocating and - copying the new values */ + dtuple_t* entry, + const dict_index_t* index, + const upd_t* update, + mem_heap_t* heap) MY_ATTRIBUTE((nonnull)); /***********************************************************//** Replaces the new column values stored in the update vector to the index entry @@ -462,6 +453,7 @@ struct upd_t{ virtual column update now */ ulint n_fields; /*!< number of update fields */ upd_field_t* fields; /*!< array of update fields */ + byte vers_sys_value[8]; /*!< buffer for updating system fields */ /** Append an update field to the end of array @param[in] field an update field */ @@ -482,6 +474,17 @@ struct upd_t{ return(false); } + /** Determine if the update affects a system versioned column. */ + bool affects_versioned() const + { + for (ulint i = 0; i < n_fields; i++) { + if (fields[i].new_val.type.vers_sys_field()) { + return true; + } + } + return false; + } + #ifdef UNIV_DEBUG bool validate() const { @@ -498,12 +501,19 @@ struct upd_t{ }; +/** Kinds of update operation */ +enum delete_mode_t { + NO_DELETE = 0, /*!< this operation does not delete */ + PLAIN_DELETE, /*!< ordinary delete */ + VERSIONED_DELETE /*!< update old and insert a new row */ +}; + /* Update node structure which also implements the delete operation of a row */ struct upd_node_t{ que_common_t common; /*!< node type: QUE_NODE_UPDATE */ - ibool is_delete;/* TRUE if delete, FALSE if update */ + delete_mode_t is_delete; /*!< kind of DELETE */ ibool searched_update; /* TRUE if searched update, FALSE if positioned */ |