accidentally added in r1815.

UNIV_MEM_ASSERT_RW(): New macro, to check that the contents of a memory
area is defined.

UNIV_MEM_ASSERT_W(): New macro, to check that a memory area is writable.

UNIV_MEM_ASSERT_AND_FREE(): New macro, to check that the memory is
writable before declaring it free (unwritable).  This replaces UNIV_MEM_FREE()
in many places.

mem_init_buf(): Declare the memory undefined.

mem_erase_buf(): Declare the memory freed.

temporary table cannot be created or renamed.

innodb-index.test,result: Add test cases where a temporary table already
exists.

trx_t: Remove dict_undo_list and dict_redo_list.

innobase_create_temporary_tablename(): Replace TEMP_TABLE_PREFIX with
a table name suffix "#1" or "#2".  In this way, the user can restore
precious data, should anything go wrong.  It is possible to reach an
inconsistent state, because the creation, deletion and renaming of
single-table tablespaces are not transactional.

ut_print_namel(), fil_make_ibd_name(), innobase_rename_table(): Remove
the special treatment of TEMP_TABLE_PREFIX.

Introduce TEMP_INDEX_PREFIX == 0xff for temporary indexes.  This byte
cannot occur in index names since MySQL 4.1.  However, it might have
been possible to use this byte in MySQL 4.0.

recv_recovery_from_checkpoint_finish(): Call the new function
row_merge_drop_temp_indexes(), to drop all indexes whose name starts
with the byte 0xff.

row_merge_rename_indexes(): Renamed from row_merge_rename_index().
Remove the parameter "index".

row_drop_table_for_mysql(): Unconditionally call trx_commit_for_mysql().

row_drop_table_for_mysql_no_commit(): Correct the function commit,
based on the corrected comment of row_drop_table_for_mysql().  Rely on
table->to_be_dropped instead of TEMP_TABLE_PREFIX.

ha_innobase::add_index(): Simplify the control flow.

in a dictionary operation, display also the name of the index.

is inline and accesses lock_t members.

As advised by Marko rename lock_get_type() to lock_get_type_low() and
create a public non-inline function lock_get_type() which calls
lock_get_type_low().

Approved by:	Marko

defined, fall back to using malloc/free.

Approved by:	Marko

INFORMATION_SCHEMA implementation:

lock_get_trx_id()
lock_get_mode_str()
lock_get_type_str()
lock_get_table_id()
lock_get_table_name()
lock_rec_get_index_name()
lock_rec_get_space_id()
lock_rec_get_page_no()

Approved by:	Marko

row_drop_table_for_mysql() call with a call to
row_drop_table_for_mysql_no_commit().  The last parameter of
the function is ibool drop_db, not ibool do_commit.  Also,
since r1790 of trunk it is not necessary to copy table->name.

Move lock_rec_find_set_bit() from lock0priv.h to lock0lock.h. This
function is needed in the INFORMATION_SCHEMA implementation which
currently resides in trx/

Approved by:	Marko

#ifdef ROW_MERGE_IS_INDEX_USABLE, to avoid growing the memory
footprint until MySQL implements and calls the virtual method
handler::is_index_available() or something equivalent.

in fast index creation.  The prefix was previously TEMP_TABLE_PREFIX == '/',
which may occur in index names.

ut_print_namel(): Do not assume that all '/' are separators between
database and table names.

of the InnoDB SQL parser.

pars_is_string_type(): New function.  Returns TRUE iff mtype equals
DATA_VARCHAR, DATA_CHAR, DATA_FIXBINARY, or DATA_BINARY.

pars_resolve_func_data_type(): Replace checks for DATA_VARCHAR with
pars_is_string_type().  For example, the NAME column of SYS_INDEXES,
SYS_TABLES, and SYS_COLUMNS is of DATA_BINARY type, although it
contains a UTF-8 character string.  This affects the functions
TO_NUMBER, BINARY_TO_NUMBER, LENGTH, INSTR, and SUBSTR.

Replace if-else with switch-case.

in a comment about latching the data dictionary.  The data dictionary may
be latched elsewhere too.

created in fast index creation.

dict_load_indexes(): Always complain if the first index is not clustered.

lock_table_enqueue_waiting(): Always complain about lock waits in
a dictionary operation.

row_merge_rename_tables(): Add an assertion that dict_sys->mutex is
being held.

row_undo_mod_del_unmark_sec_and_undo_update(): Make the test about
temporary indexes more readable.

row_create_table_for_mysql(): Do not retry creating a temporary table
in fast index creation.  Orphaned temporary tables will have to be dropped
in crash recovery.

row_upd_index_is_referenced(), row_upd_check_references_constraints(),
row_purge_parse_undo_rec(): Remove duplicated code that calls
row_mysql_unfreeze_data_dictionary().

row_undo_ins_remove_clust_rec():
Assert that the data dictionary is X-latched.  Do not attempt to re-latch
the data dictionary, because doing so introduces race conditions.  This
re-latching was probably made unnecessary already in r1676, which keeps
the data dictionary X-latched in ha_innobase::add_index() for the complete
duration of the data dictionary operations.

row_undo_ins_parse_undo_rec(): Do not attempt to acquire the data dictionary
latch.  The data dictionary should be already X-latched when a transaction
that modifies system tables is rolled back.  This also holds in the rollback
during crash recovery: trx_rollback_active() will X-latch the data dictionary
when needed.

been removed in r1752.

only after the buffer_cache has warmed up. During the initial warmup
phase these values are set to zero. We should recommend to move the
block to the start of the LRU in this case.

Also added some comments to buf0buf.c about the LRU logic.

reviewed by: Sunny

retrieve trx_t's properties that will be exported in INFORMATION_SCHEMA tables.

Approved by:	Marko

for()-loop.

Suggested by:	Sunny
Approved by:	Marko

row_create_table_for_mysql() will free new_table.  Thus, remove
the call dict_mem_table_free(new_table).

have been added to it.

Approved by:	Marko

from ha_innobase::add_index().

dict_rename_indexes(): Remove the redundant parameter commit_flag.

ha_innobase::add_index(): Add assertions about !trx->sync_cb and
!trx->dict_redo_list.  Remove a bogus comment.  Replace
row_lock_table_for_merge() with row_merge_lock_table().

row_merge_lock_table(): Renamed from row_lock_table_for_merge()
and moved from row0mysql.c to row0merge.c.  Always lock the table in
the mode LOCK_X.  Call que_graph_free() in order not to leak memory.

freed with UNIV_MEM_FREE().  Before this change, the memory
freed by mem_heap_empty() was not completely flagged free
in UNIV_DEBUG_VALGRIND builds.  After this change, Valgrind
will hopefully catch all errors caught by UNIV_MEM_DEBUG.

The index[] array that is allocated from the heap is still live.

(in the database.id format).  This should have been changed in r1570.

FOREIGN KEY constraints.  At the moment, MySQL will rebuild the entire
table and indexes when such constraints are added or removed, even though
the constraints do not affect the storage format of the data.

instead of os_file_read().  Display some fault diagnostics.

innodb-index.test: Add some test cases for FOREIGN KEY constraints.

row_merge_rename_tables(): New function,
adapted from row_rename_table_for_mysql().

ha_innobase::add_index(): Use row_merge_rename_tables().

printout of dict_table_rename_in_cache().  Correct the comment about
the SQL parser.  This function does not drop any table.

for the error cases.  Avoid copying the old table->name; the string will
remain valid in table->heap.

have been set.

ha_innobase::add_index(), ha_innobase::prepare_drop_index(),
ha_innobase::final_drop_index(): Return HA_ERR_WRONG_COMMAND if
newraw or innodb_force_recovery have been set.

dict_table_t, dict_index_t, and dict_foreign_t.