There always was a one-to-one mapping between dict_tree_t and dict_index_t.
This saves 6 machine words per B-tree index in the data dictionary
cache plus the memory allocation overhead. We save one mem_heap_t
object per index (15 machine words). Considering the internal
fragmentation of the buddy allocator in mem_area_alloc(), this should
save 32 machine words per index (128 bytes on 32-bit systems and 256
bytes on 64-bit systems). (Bug #20877)
struct dict_tree_struct, dict_tree_t: Remove.
struct dict_index_struct: Add page and lock.
dict_tree_create(): Remove. Replace the invocation with
assignment to index->page and a call to rw_lock_create(&index->lock).
dict_tree_free(): Remove. Replace the invocation wtih
a call to rw_lock_free(&index->lock).
dict_index_get_tree(): Remove.
dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve()
and remove the parameter, which was unused.
btr_level_list_remove(): Remove the unused parameter "tree".
Replace the occurrences of "tree" with "index" in names of variables,
functions and data types, e.g. "dict_tree_t tree" becomes
"dict_index_t index". Remove local variables "tree" or "index" of
functions that needed both "tree" and "index".
and lexer files). From now on, the following Emacs cc-mode settings apply
when indenting C function bodies in InnoDB:
(setq c-basic-offset 8)
(setq c-label-minimum-indentation 0)
(add-to-list 'c-offsets-alist '(c . 0))
(add-to-list 'c-offsets-alist '(label . [0]))
The indentation rules for function declarations still have not been
formalized, and they must be formatted manually.
Try to limit all lines to at most 79 characters (assuming TAB stops every
8 characters) by splitting lines before opening parenthesis, or at
string constants.
Fix some grammar mistakes in diagnostic output:
match to, match with -> match
found from -> found in
trying rename -> trying to rename
Fix an error in page_check_dir(): it said "supremum not pointed to"
when the infimum was not pointed to.
Enclose commented-out code snippets in #if 0 ... #endif instead of /* ... */.
Add (void*) casts to some %p parameters in fprintf() calls. Try to
split lines before a binary operator, not after one. (These three fixes
were not made everywhere.)
to the insert buffer. This was noticed while analyzing Bug #19081, but
this should not fix Bug #19081, since according to Heikki, btr_search_latch
is not reserved during an insert.
FIL_PAGE_NEXT and FIL_PAGE_PREV when accessing sibling pages
of B-tree indexes.
btr_validate_level(): Check the validity of the doubly linked list
formed by FIL_PAGE_NEXT and FIL_PAGE_PREV.
r340: Fix http://bugs.mysql.com/bug.php?id=18283 in ha_innodb.cc and
http://bugs.mysql.com/bug.php?id=18238 in InnoDB
r339: Remove disk space leak on update of BLOB columns (Bug #18252).
btr_cur_pessimistic_update(): Invoke rec_get_offsets() after
rec_set_field_extern_bits().
btr_store_big_rec_extern_fields(): Note that offsets will no longer be
valid after calling this function.
r338: Fix bug 18238 : check in pessimistic insert and update if the buffer
pool is exhausted by locks
row_upd_index_replace_new_col_vals_index_pos(): Add a parameter, "ibool
order_only", for limiting the replacement to the ordering fields of the
index. Adjust callers.
In this port, the comment for the parameter was adjusted to make it clear
that it only supports clustered indexes.
which can contain the new flag DICT_TF_COMPACT. Change dict_mem_table_create
to take a flags argument. Add dict_table_is_comp(). Adapt all users.
Change some places to explicitly assume that system tables do not use the
compact page format.
new tablespaces created from now on.
btr_store_big_rec_extern_fields(): Set FIL_PAGE_TYPE to FIL_PAGE_TYPE_BLOB.
buf_page_print(): Decode FIL_PAGE_TYPE. Replace if-else with switch().
buf_page_create(): Set FIL_PAGE_PREV, FIL_PAGE_NEXT and FIL_PAGE_TYPE.
trx_sysf_create(): Set FIL_PAGE_TYPE to FIL_PAGE_TYPE_TRX_SYS.
Initialize TRX_SYS_RSEG_SPACE.
FIL_PAGE_TYPE: Document that the field cannot be relied on in older
versions of MySQL/InnoDB. Add new type codes.
ibuf_bitmap_page_init(): Document that the rest of the page is uninitialized.
ibuf_add_free_page(): Log the setting of FIL_PAGE_TYPE.
fsp_header_init(): Set FIL_PAGE_TYPE to FIL_PAGE_TYPE_FSP_HDR.
Initialize FSP_NOT_USED.
fsp_fill_free_list(): Set FIL_PAGE_TYPE to FIL_PAGE_TYPE_XDES.
fsp_alloc_seg_inode_page(): Set FIL_PAGE_TYPE to FIL_PAGE_INODE.
fseg_create_general(): Set FIL_PAGE_TYPE to FIL_PAGE_TYPE_SYS.
