Remember the acquired record locks per table handle (row_prebuilt_t)
rather than per transaction (trx_t), so that unlock_row should successfully
unlock all non-matching rows in multi-table operations.
This deficiency was found while investigating Bug #39320.
rb://94 approved by Heikki Tuuri.
column values for columns that are SQL NULL. This addresses failures in
row-based replication (Bug #39648).
row_prebuilt_t: Add default_rec, for the default values of the columns in
MySQL format.
row_sel_store_mysql_rec(): Use prebuilt->default_rec instead of
padding columns.
rb://64 approved by Heikki Tuuri
instead of parsing the query string. This fixes MySQL Bug #37885 without
us having to implement lexical analysis of SQL comments in yet another place.
thd_is_select(): A new predicate.
row_search_for_mysql(): Use thd_is_select().
Approved by Heikki.
Check whether *trx->mysql_query_str is != NULL in addition to
trx->mysql_query_str. This adds more safety.
This may or may not fix Bug#35226 RBR event crashes slave.
Fix Bug#34300 Tinyblob & tinytext fields currupted after export/import and alter in 5.1
Copy the BLOB fields, that are stored internally, to a safe place
(prebuilt->blob_heap) when converting a row from InnoDB format to
MySQL format in row_sel_store_mysql_rec().
The bug was introduced in:
------------------------------------------------------------------------
r587 | osku | 2006-05-23 15:35:58 +0300 (Tue, 23 May 2006) | 3 lines
Optimize BLOB selects by using prebuilt->blob_heap directly instead of first
reading BLOB data to a temporary heap and then copying it to
prebuilt->blob_heap.
------------------------------------------------------------------------
Approved by: Heikki
new typedef to univ.i (ib_ulonglong). Added checks for overflow and removed
the assertion where it crashed previously, since the type has now changed
to unsigned, it doesn't make sense to check for < 0. Added new tests, to
check for overflow, for the different INT types supported for both
signed and unsigned.
Fixes Bug# 34335
autoincrement columns can't contain negative values. With the fix, the
autoincrement table counter is set to 0 if the maximum value read from
the autoinc column index is negative.
Add test for the bug fix but the test is not really useful as the server
needs to be restarted half way through the test. It has been added for
reference only.
innodb-semi-consistent: New tests for InnoDB semi-consistent reads.
Unfortunately, these will not trigger Bug #31494, because there merely
occur lock wait timeouts, not deadlocks.
Bug# 30907: We don't rely on *first_value to be 0 when checking whether
get_auto_increment() has been invoked for the first time in a multi-row
INSERT. We instead use trx_t::n_autoinc_rows. Initialize trx::n_autoinc_rows
inside ha_innobase::start_stmt() too.
Bug# 30888: While adding code for the low level read of the AUTOINC value
from the index, the case for MEDIUM ints which are 3 bytes was missed
triggering an assertion.
when building a previous version of the row. This bug is triggered when
running queries via InnoDB's internal SQL parser; when InnoDB's optimizer
selects a secondary index for the plan.
is one test that fails as of this commit. The updated test case should be
part of the snapshot from MySQL shortly.
Fix for bug# 27950 - Init AUTOINC from delete_row().
Fix for bug# 28781 - Use value specified by MySQL, in update_row().
Summary of structural changes:
==============================
InnoDB needs to hold a table level lock for AUTOINC allocations to overcome
the non-determinism inherent in MySQL SBR for INSERT ... SELECT. In this fix
for simple INSERT statements (including multi-value inserts), we try and avoid
acquiring the special AUTOINC table level lock unless another transaction has
already reserved the AUTOINC table level lock, in which case we fall back
to the old behavior of acquiring the AUTOINC table level lock.
The max AUTOINC value is now read directly using the low level interface
of InnoDB.
so that all integer fields can be packed into 64 bits. (Bug #20877)
dtype_t: Change the type of all bit-fields to unsigned.
dict_table_get_nth_col(), dict_table_get_sys_col_noninline(),
dict_table_get_sys_col(), dict_field_get_col(): Return const
dict_col_t*, so that changes to dict_col_t can be detected more
easily. Add const to many dict_col_t* declarations.
dict_index_get_nth_type(): Replace with dict_index_get_nth_col().
dict_col_get_type(): Replace with dict_col_copy_type().
dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(),
dict_col_get_sql_null_size(): New functions.
dtype_get_at_most_n_mbchars(): Replace the parameter dtype
with the parameters prtype, mbminlen, mbmaxlen.
dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(),
cmp_whole_field(): Replace the dtype_t* parameter with the ulint
parameters mtype, prtype.
dtype_copy(): Add a const qualifier to type2 (the one being copied from).
dtype_set_mblen(): Replaced with dtype_get_mblen().
dtype_get_fixed_size_low(), dtype_get_min_size_low(),
dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(),
dtype_get_min_size(), and dtype_get_max_size(). These are used by the
dict_col_get_{fixed,min,max}_size() functions.
cmp_types_are_equal(): Replace with cmp_cols_are_equal().
dict_table_get_col_name(): Add a const qualifier parameter to the
parameter "table".
dtype_binary, dtype_binary_val: Remove.
dtype_is_fixed_size(): Remove.
dict_col_get_clust_pos(): Add parameter clust_index. Replace the
look-up with a linear search of all columns in the clustered index.
row_upd_index_replace_new_col_vals(): Compute clust_index outside
the loops. Compute clust_pos outside the inner loop.
row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary():
Compute clust_index outside the loops. Declare the auxiliary variables
inside the loop scope.
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.)
SEL_FOUND when the record was not found. This bug was introduced in
MySQL/InnoDB 5.0.3, but luckily it should never manifest itself, given
that existing InnoDB SQL code never makes use of consistent reads.
ut_print_name(), ut_print_namel(): Add parameter table_id for distinguishing
names of tables from other identifiers (names of indexes, columns and
constraints).
innobase_convert_from_table_id(), innobase_convert_from_id(),
innobase_convert_from_filename(), innobase_get_charset(): New functions.
dict_accept(), dict_scan_id(), dict_scan_col(), dict_scan_table_name(),
dict_skip_word(), dict_create_foreign_constraints_low():
Add parameter "cs", so that isspace() can be replaced with my_isspace(),
whose operation depends on the connection character set.
dict_scan_id(): Convert the identifier to UTF-8.
dict_str_starts_with_keyword(): New extern function, to replace dict_accept()
in row_search_for_mysql().
mysql_get_identifier_quote_char(): Replaced with innobase_print_identifier().
ha_innobase::create(): Remove the thd->convert_string() call.
Pass the statement to InnoDB in the connection character set
and let InnoDB convert the identifiers to UTF-8.
Remove unused dict_table_LRU_trim().
Remove unused 'trx' parameter from the functions dict_table_get_on_id_low,
dict_table_get and dict_table_get_and_increment_handle_count.
the implementation would be challenging with ROW_FORMAT=COMPACT.
Remove the table types DICT_TABLE_CLUSTER_MEMBER and DICT_TABLE_CLUSTER and
all related tests and functions.
dict_table_t: Remove mix_id, mix_len, mix_id_len, mix_id_buf, and
cluster_name.
plan_t: Remove mixed_index.
dict_create_sys_tables_tuple(): Set MIX_ID=0, MIX_LEN=0 and CLUSTER_NAME=NULL
when inserting into SYS_TABLES.
dict_tree_check_search_tuple(): Enclose in #ifdef UNIV_DEBUG.
weakens the locks for this session similarly like the option
innodb_locks_unsafe_for_binlog. This patch removes almost all
gap locking (used in next-key locking) and makes MySQL to release
the row locks on the rows which does not belong to result set.
Additionally, nonlocking selects on INSERT INTO SELECT,
UPDATE ... (SELECT ...), and CREATE ... SELECT ... use a
nonlocking consistent read. If a binlog is used, then binlog
format should be set to row based binloging to make the execution
of the complex SQL statements.
Remove UNIV_RELEASE_NOT_YET_STABLE and related checks.
page_rec_is_comp(): Remove the bounds check.
row_sel_field_store_in_mysql_format(): Turn the assertions on mbminlen,
mbmaxlen and templ->type into debug assertions.
probably caching. Fixed test results.
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
