transactions that are started before the rollback of incomplete
transactions has finished may have an inconsistent view of the
secondary indexes.
dict_index_is_sec_or_ibuf(): Auxiliary function for controlling
updates and checks of PAGE_MAX_TRX_ID: check whether an index is a
secondary index or the insert buffer tree.
page_set_max_trx_id(), page_update_max_trx_id(),
lock_rec_insert_check_and_lock(),
lock_sec_rec_modify_check_and_lock(), btr_cur_ins_lock_and_undo(),
btr_cur_upd_lock_and_undo(): Add the parameter mtr.
page_set_max_trx_id(): Allow mtr to be NULL. When mtr==NULL, do not
attempt to write to the redo log. This only occurs when creating a
page or reorganizing a compressed page. In these cases, the
PAGE_MAX_TRX_ID will be set correctly during the application of redo
log records, even though there is no explicit log record about it.
btr_discard_only_page_on_level(): Preserve PAGE_MAX_TRX_ID. This
function should be unreachable, though.
btr_cur_pessimistic_update(): Update PAGE_MAX_TRX_ID.
Add some assertions for checking that PAGE_MAX_TRX_ID is set on all
secondary index leaf pages.
rb://115 tested by Michael, fixes Issue #211
correctly estimate the free space on the compressed page by
page_zip_available(..., create=TRUE). This was reported as Issue #231.
btr_cur_update_alloc_zip(): Add the parameter ibool create and pass it
to page_zip_available(). The parameter was previously passed as 0.
btr_cur_optimistic_update(): Pass create=TRUE to btr_cur_update_alloc_zip().
rb://120 approved by Heikki Tuuri
So far, the parameter innodb_change_buffering was only settable by the
SET GLOBAL command. Any change specified in the configuration file or
on the mysqld command line was ignored. This was reported as Issue #217.
rb://109 approved by Heikki Tuuri.
history. This addresses Mantis issue #116.
dict_index_t: Enable the storage of trx_id.
row_prebuilt_t: Make many fields bit-fields to reduce the memory
footprint. Add index_usable.
ha_innobase::change_active_index(): Check if the index is usable and
set prebuilt->index_usable accordingly. Unfortunately, the return
status of this function is ignored by MySQL, and the actual refusal to
use the index must be made in row_search_for_mysql().
row_search_for_mysql(): Return DB_MISSING_HISTORY if
!prebuilt->index_usable.
convert_error_code_to_mysql(): Map DB_MISSING_HISTORY to
HA_ERR_TABLE_DEF_CHANGED.
innodb-index.test: Add a test case where access to a newly created
secondary index must be blocked for old transactions.
rb://100 approved by Heikki Tuuri
Make ChangeLog entries for bugs in bugs.mysql.com in the form:
Fix Bug#12345 bug title
(for bugs after 1.0.2 was released and the ChangeLog published)
There is no need to bloat the ChangeLog with information that is available
via bugs.mysql.com.
Discussed with: Marko
Unprotected updates to ut_total_allocated_memory in
os_mem_alloc_large() and os_mem_free_large(), called during
fast index creation, may corrupt the variable and cause assertion failures.
Also, add UNIV_MEM_ALLOC() and UNIV_MEM_FREE() instrumentation around
os_mem_alloc_large() and os_mem_free_large(), so that Valgrind can
detect more errors.
rb://90 approved by Heikki Tuuri. This addresses Issue #177.
innodb_additional_mem_pool_size, because nothing will
be allocated from mem_comm_pool.
mem_pool_create(): Remove the assertion about size. The function will
work with any size. However, an assertion would fail in ut_malloc_low()
when size==0.
mem_init(): When srv_use_sys_malloc is set, pass size=1 to mem_pool_create().
mem0mem.c: Add #include "srv0srv.h" that is needed by mem0dbg.c.
If lower_case_table_names=1, MySQL will pass the table names in lower case.
Thus, we can use a binary comparison (strcmp) in the hash table.
rb://87 approved by Heikki Tuuri, to address Bug #41676 and Issue #167.
Implement the global variable innodb_change_buffering, with the
following values:
none - buffer nothing
inserts - buffer inserts (the default)
Approved by Ken Jacobs.
