accessing a freed record on a compressed page.

The variable srv_stats_sample_pages was declared ib_uint64_t in srv0srv.c
and unsigned long long in srv0srv.h.

the file differ from branches/zip.

btr0cur.c: Undo changes to white space that make the code differ from
branches/zip.

btr_cur_del_unmark_for_ibuf(): Remove this unused function.

btr_cur_set_deleted_flag_for_ibuf(): Add missing UNIV_INTERN specifier.
Correct the function comment.  Call btr_rec_set_deleted_flag() instead
of rec_set_deleted_flag_new(), so that delete buffering will actually
work on ROW_FORMAT=REDUNDANT tables.

closer to branches/zip.

ibuf_size_update(): Add const qualifier to the parameter "root".
Remove #ifdef UNIV_SYNC_DEBUG around ut_ad(mutex_own()).

ibuf_page(): Use the variable name local_mtr instead of mtr_local, to
be more like existing functions.  Eliminate the flag use_local_mtr.

ibuf_get_merge_page_nos(): Restore an "if (...) break; else if" to
"if (...) break; if" as in branches/zip.

ibuf_dummy_index_create(), ibuf_dummy_index_add_col(),
ibuf_contract_ext(), ibuf_insert_low(): Revert to the formatting of
branches/zip.

ibuf_print(): Do not print n_ops[].

ibuf_print_ops(): Output trailing newline.

to eliminate double negation from an assertion.

The followin mysql-tests failed (and they are known to fail):
main.information_schema        	[ fail ]
main.innodb_file_per_table_basic[ fail ]
main.type_bit_innodb           	[ fail ]

Tested against : MYSQL_SERVER_VERSION  "5.1.28"

zip size can be 0.

(These changes remove the POSIX AIO stuff)

that are used in merge sort when creating indexes.

Fix Bug#25640:

Introduce an user visible parameter innodb_stats_sample (default 8,
min 1, max 1000) and use that parameter instead of the
BTR_KEY_VAL_ESTIMATE_N_PAGES macro. Remove this macro.

Approved by:	Heikki

and incorrect "BLOB bug fix" that was suggested by Heikki.  Explain in
a comment why no such fix is needed.

in *.h files, so that the function signatures in the *.h and *.c files fully
match each other.

ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.

lock_rec_restore_from_page_infimum(): Correct the comment of the parameter rec.

lock_sec_rec_read_check_and_lock(): Add the debug assertion
ut_ad(mode == LOCK_X || mode == LOCK_S).

buf_LRU_old_adjust_len(): Replace a constant ut_ad() with a preprocessor check.

buf_LRU_free_block(): Remove the check for the unlikely case
buf_pool->LRU_old == prev_b in order to simplify the function.
The check was implemented as part of r2306.

suggested by Heikki, because it breaks row_vers_impl_x_locked_off_kernel();
see Mantis issue #10.

However, now that Heikki's fix has been removed, the code may break elsewhere
when it tries to dereference half-freed or completely freed externally
stored columns.

lock_update_delete(): Add the debug assertion ut_ad(page == page_align(rec)).

lock_rec_insert_check_and_lock(): Determine next_rec_heap_no before
acquiring the kernel mutex.  Require the table to be at least S-locked
in fast index creation.

corresponding to a compressed page, do not flag the block as recently
used, but maintain the position of the control block on the LRU list.

lock_rec_get_first(): Use a simple for loop.

lock_rec_copy(): Use mem_heap_dup().

lock_rec_find_similar_on_page(): Add const qualifier to trx.

lock_move_rec_list_end(), lock_move_rec_list_start(): Simplify the
memcmp() assertion on ROW_FORMAT=REDUNDANT records.

qualifier to parameter, and fix the formatting of a comment.

Use ut_d() in assignments to bpage->in_LRU_list instead of #ifdef UNIV_DEBUG.

buf_LRU_remove_block(): Move an assertion to a more appropriate place.

Make it easier to display the violating lock request in a debugger.

on i==j==BUF_BUDDY_SIZES.

innobase_check_index_keys(): Remove unused parameters.  Use
sql_print_error() for error message output.

ha_innobase::add_index(): When row_merge_rename_tables() fails, do not
allow row_merge_drop_table() to alter the error code returned to MySQL.

the dynamic InnoDB plugin, ha_innodb.so.  This libtool option cannot
be used on every target platform.  For instance, the AMD64 (x86_64) ABI
mandates position-independent code (PIC) in dynamic shared objects.

Makefile.am: Use $(INNODB_CFLAGS) and $(INNODB_DYNAMIC_CFLAGS) in
target-specific CFLAGS and CXXFLAGS variable definitions.

plug.in: Instead of appending to the MySQL-wide CFLAGS, introduce
the variables INNODB_CFLAGS and INNODB_DYNAMIC_CFLAGS.  Depending on
$target_cpu, append -prefer-non-pic to INNODB_DYNAMIC_CFLAGS.