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* Update wrong zip-code
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This patch fixes an invalid read in fill_effective_table_privileges
triggered by a grant_version increase between a PREPARE for a
statement creating a view from I_S and EXECUTE.
A tmp table was created and free'd while preparing the statement,
TABLE_LIST::table_name was set to point to the tmp table
TABLE_SHARE::table_name which no longer existed after preparing was
done.
The grant version increase made fill_effective_table_privileges
called during EXECUTE to try fetch the updated grant info and
this is where the dangling table name was used.
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always logged properly with binlog_row_image=MINIMAL
There are two issues fixed in this commit.
The first is an observation of a multi-table UPDATE binlogged
in row-format in binlog_row_image=MINIMAL mode. While the UPDATE aims
at a table with an ON-UPDATE attribute its binlog after-image misses
to record also installed default value.
The reason for that turns out missed marking of default-capable fields
in TABLE::write_set.
This is fixed to mark such fields similarly to 10.2's MDEV-10134 patch (db7edfed17efe6)
that introduced it. The marking follows up 93d1e5ce0b841bed's idea
to exploit TABLE:rpl_write_set introduced there though,
and thus does not mess (in 10.1) with the actual MDEV-10134 agenda.
The patch makes formerly arg-less TABLE::mark_default_fields_for_write()
to accept an argument which would be TABLE:rpl_write_set.
The 2nd issue is extra columns in in binlog_row_image=MINIMAL before-image
while merely a packed primary key is enough. The test main.mysqlbinlog_row_minimal
always had a wrong result recorded.
This is fixed to invoke a function that intended for read_set
possible filtering and which is called (supposed to) in all type of MDL, UPDATE
including; the test results have gotten corrected.
At *merging* from 10.1->10.2 the 1st "main" part of the patch is unnecessary
since the bug is not observed in 10.2, so only hunks from
sql/sql_class.cc
are required.
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Create a new constant MAX_DATA_LENGTH_FOR_KEY.
Replace the value of MAX_KEY_LENGTH to also include the LENGTH and NULL BYTES
of a field.
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for blob column
Moved delete_stat_values_for_table_share() call to proper place.
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Backport of 794f71cbc41
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instead of returning strings for CASCADE/RESTRICT
from every storage engine, use enum values
Backport of a3614d33e8a
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views
In this issue we are using derived_with_keys optimization and we are using these keys to do a hash join which is incorrect.
We cannot create keys for dervied tables whose keyparts have types are of BLOB or TEXT type. TEXT or BLOB columns can only be
indexed over a specified length.
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MDEV-16512 Server crashes in find_field_in_table_ref on 2nd
execution of SP referring to non-existing field
Problem was in the natural join code that it changed TABLE_LIST and
Item_fields but didn't restore changed things if things goes wrong
and was not able to re-execute after failure.
Some of the problems could have been avoided if we would have run
fix_fields before doing natural join transformations.
Fixed by marking functions complete AFTER they had executed, instead at
start.
I had also to change some tests that checked if Item_fields are usable.
This doesn't fix all known problems, but at least avoids some crashes.
What should be done in the near future is to mark the statement in the SP
as 'not re-executable' and force a reparse of it on next execution.
Reviewer: Sergei Petrunia <psergey@askmonty.org>
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followup for d8da920264a
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makes optimizer always picks
materialization scan over materialization lookup
For non-mergeable semi-joins we don't store the estimates of the IN subquery in table->file->stats.records.
In the function TABLE_LIST::fetch_number_of_rows, we store the number of rows in the tables
(estimates in case of derived table/views).
Currently we don't store the estimates for non-mergeable semi-joins, which leads to a problem of selecting
materialization scan over materialization lookup.
Fixed this by storing these estimated appropriately
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Crash happened because in discover, table->work_part_info was not properly
reset before execution.
Fixed by resetting before calling execute alter table, create table or
mysql_create_frm_image.
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IS DROPPED
ANALYSIS:
=========
It is advised not to tamper with the system tables.
When primary key is dropped from a system table, certain
operations on the table which tries to access the table key
information may lead to server exit.
FIX:
====
An appropriate error is now reported in such a case.
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instrument table->record[0], table->record[1] and share->default_values.
One should not access record image beyond share->reclength, even
if table->record[0] has some unused space after it (functions that
work with records, might get a copy of the record as an argument,
and that copy - not being record[0] - might not have this buffer space
at the end). See b80fa4000d6 and 444587d8a3c
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TRASH was mapped to TRASH_FREE and was supposed to be used for memory
that should not be accessed anymore, while TRASH_ALLOC() is to be
used for uninitialized but to-be-used memory.
But sometimes TRASH() was used in the latter sense.
Remove TRASH() macro, always use explicit TRASH_ALLOC() or TRASH_FREE().
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If translation table present when we materialize the derived table then
change it to point to the materialized table.
Added debug info to see really what happens with what derived.
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BIT fields
For BIT field null_bit is not set to 0 even for a field defined as NOT NULL.
So now in the function TABLE::create_key_part_by_field, if the bit field is not nullable
then the null_bit is explicitly set to 0
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The method Field_iterator_table::create_item() must take into
account that it can be called when processing DELETE RETURNING.
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don't prepare for checking view's CHECK OPTION, if
there is no CHECK OPTION in the first place.
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is_bulk_op())' or `! is_set()' failed
followup for 97c2a7354b6 - don't use thd->is_error(),
the error could've been set before TABLE_LIST::cleanup_items.
Use the error handler to count errors.
This fixes rpl.rpl_row_binlog_max_cache_size - it was failing when
ER_STMT_CACHE_FULL happened duing multi-table update. Because
multi_update::abort_result_set() calls do_updates() to update
as much as possible, so one cannot rely on thd->is_error() after that.
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is_bulk_op())' or `! is_set()' failed
Check error status which can be set by conversion procedures.
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