diff options
Diffstat (limited to 'sql/table.cc')
| -rw-r--r-- | sql/table.cc | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sql/table.cc b/sql/table.cc index d950b7a3a4e..5c1e27b87c7 100644 --- a/sql/table.cc +++ b/sql/table.cc @@ -5500,22 +5500,25 @@ size_t max_row_length(TABLE *table, const uchar *data) @param thd Thread handle @param table The TABLE object - @param for_write Requests to compute only fields needed for write + @param vcol_update_mode Specifies what virtual column are computed @details The function computes the values of the virtual columns of the table and stores them in the table record buffer. - Only fields from vcol_set are computed, and, when the flag for_write is not - set to TRUE, a virtual field is computed only if it's not stored. - The flag for_write is set to TRUE for row insert/update operations. - + If vcol_update_mode is set to VCOL_UPDATE_ALL then all virtual column are + computed. Otherwise, only fields from vcol_set are computed: all of them, + if vcol_update_mode is set to VCOL_UPDATE_FOR_WRITE, and, only those with + the stored_in_db flag set to false, if vcol_update_mode is equal to + VCOL_UPDATE_FOR_READ. + @retval 0 Success @retval >0 Error occurred when storing a virtual field value */ -int update_virtual_fields(THD *thd, TABLE *table, bool for_write) +int update_virtual_fields(THD *thd, TABLE *table, + enum enum_vcol_update_mode vcol_update_mode) { DBUG_ENTER("update_virtual_fields"); Field **vfield_ptr, *vfield; @@ -5529,9 +5532,9 @@ int update_virtual_fields(THD *thd, TABLE *table, bool for_write) { vfield= (*vfield_ptr); DBUG_ASSERT(vfield->vcol_info && vfield->vcol_info->expr_item); - /* Only update those fields that are marked in the vcol_set bitmap */ - if (bitmap_is_set(table->vcol_set, vfield->field_index) && - (for_write || !vfield->stored_in_db)) + if ((bitmap_is_set(table->vcol_set, vfield->field_index) && + (vcol_update_mode == VCOL_UPDATE_FOR_WRITE || !vfield->stored_in_db)) || + vcol_update_mode == VCOL_UPDATE_ALL) { /* Compute the actual value of the virtual fields */ error= vfield->vcol_info->expr_item->save_in_field(vfield, 0); |