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buf_read_page_low(): Remove an error message and a debug assertion
that can be triggered when using innodb_page_size=4k and
innodb_file_per_table=0. In that case, buf_read_ahead_linear()
may be invoked on page 255, which is one less than the first
page of the doublewrite buffer (256).
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fil_space_t::flush_freed(): Renamed from buf_flush_freed_pages();
this is a backport of aa45850687409ba857eb3a0eb19e7ccc28dc02f7 from 10.6.
Invoke log_write_up_to() on last_freed_lsn, instead of avoiding
the operation when the log has not yet been written.
A more costly alternative would be that log_checkpoint() would invoke
this function on every affected tablespace.
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buf_read_ahead_linear(): Correct some calculations that were broken
in commit b1ab211dee599eabd9a5b886fafa3adea29ae041 (MDEV-15053).
Thanks to Daniel Black for providing a test case and initial debugging.
Tested by: Matthias Leich
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btr_cur_need_opposite_intention(): Check also page_zip_available()
so that we will escalate to exclusive index latch when a non-leaf
page may have to be split further due to ROW_FORMAT=COMPRESSED page
overflow.
Tested by: Matthias Leich
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best_access_path(): Simplify the logic for computing fanout.
This fixes up commit 4329ec5d3b109cb0bcbee151b5800dc7b19d1945
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hash_join_cardinality=on
Derived table creation code would call Field::make_new_field() which would
memcpy the Field object from the source table, including Field::read_stats.
But the temp. table as a whole had table->stats_is_read=false. Which was
correct but not consistent with Field::read_stats and caused an assertion.
Fixed by making sure that Field::read_stats=NULL for fields in the new
temporary (i.e. work) tables.
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The problem, introduced in patch for MDEV-26301:
When check_join_cache_usage() decides not to use join buffer, it must
adjust the access method accordingly. For BNL-H joins this means switching
from pseudo-"ref access"(with index=MAX_KEY) to some other access method.
Failing to do this will cause assertions down the line when code that is
not aware of BNL-H will try to initialize index use for ref access with
index=MAX_KEY.
The fix is to follow the regular code path to disable the join buffer for
the join_tab ("goto no_join_cache") instead of just returning from
check_join_cache_usage().
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with views and HAVING
Do not try to decide merge/materialize for derived if it was already decided
(even if it is a view).
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RocksDB (in a submodule) has to include <cstdint> to use uint64_t
but it doesn't. Until the submodule is upgraded, let's replace
problematic types with something that's available
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DUPLICATE KEY in some cases
select_insert::store_values() must reset
has_value_set bitmap before every row, just like mysql_insert() does.
because ON DUPLICATE KEY UPDATE and triggers modify it
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EXPLAIN EXTENDED DELETE
Temporary fix to avoid the server crash.
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Add Optimizer Trace printouts.
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This patch optimizes the number of refills for the lateral derived table
to which a materialized derived table subject to split optimization is
is converted. This optimized number of refills is now considered as the
expected number of refills of the materialized derived table when searching
for the best possible splitting of the table.
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(part 1 is in the previous commit)
to [ pass ] galera.MDEV-18832, galera.MDEV-27862
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- Update wsrep-lib which contains fix for the assertion
- Fix error handling for appending fragment to streaming log,
make sure tables are closed after rollback.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
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changed tast case 2 to be deterministic
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
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1. log_event.cc stuff should go into log_event_server.cc
2. the test's wait condition is textually different in 10.5, fixed.
3. pre-exec 'optimistic' global var value is correct for 10.5 indeed.
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When using binlog_row_image=FULL with sequence table inserts, a
replica can deadlock because it treats full inserts in a sequence as DDL
statements by getting an exclusive lock on the sequence table. It
has been observed that with parallel replication, this exclusive
lock on the sequence table can lead to a deadlock where one
transaction has the exclusive lock and is waiting on a prior
transaction to commit, whereas this prior transaction is waiting on
the MDL lock.
This fix for this is on the master side, to raise FL_DDL
flag on the GTID of a full binlog_row_image write of a sequence table.
This forces the slave to execute the statement serially so a deadlock
cannot happen.
A test verifies the deadlock also to prove it happen on the OLD (pre-fixes)
slave.
OLD (buggy master) -replication-> NEW (fixed slave) is provided.
As the pre-fixes master's full row-image may represent both
SELECT NEXT VALUE and INSERT, the parallel slave pessimistically
waits for the prior transaction to have committed before to take on the
critical part of the second (like INSERT in the test) event execution.
The waiting exploits a parallel slave's retry mechanism which is
controlled by `@@global.slave_transaction_retries`.
Note that in order to avoid any persistent 'Deadlock found' 2013 error
in OLD -> NEW, `slave_transaction_retries` may need to be set to a
higher than the default value.
START-SLAVE is an effective work-around if this still happens.
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Adding virtual methods to class Schema:
make_item_func_replace()
make_item_func_substr()
make_item_func_trim()
This is a non-functional preparatory change for MDEV-27744.
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The fix was introduced, along with re-ordering to do other macros that check test environment capabilities before master/slave is set up.
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