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Item_user_var_as_out_param detection
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- Adding a new virtual method Field::load_data_set_no_data().
- Overriding Field_timestamp::load_data_set_no_data() and moving
the TIMESTAMP specific code there.
- Overriding Field_geom::load_data_set_no_data() and implementing
GEOMETRY specific behavior, to prevent writing empty strings
when the loaded file ends unexpectedly. This fixes the bug.
- Adding a new test gis-loaddaata.test.
- The test in loaddata.test for CHAR was added simply to record behavior.
The CHAR data type did not change its behaviour (only GEOMRYRY did).
- Additionally, moving duplicate code into a new method
Field::load_data_set_value() and reusing it in three places.
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Revert commit db0917f68f, because the fix for MDEV-12696
is coming from 5.5 and 10.1 in this merge.
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Issue:
------
While using the LOAD statement to insert data into an
updateable view, the check to verify whether a column
is actually updatable is missing.
Solution for 5.5 and 5.6:
-------------------------
For a view whose column-list in specified in the LOAD
command, this check is not performed. This fix adds the
check.
This is a partial backport of Bug#21097485.
Solution for 5.7 and trunk:
---------------------------
For a view whose column-list is specified in the LOAD
command, this check is already performed. This fix adds the
same check when no column-list is specified.
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c3cf7f47f0f4a1ec314001aaf0c3d9c1c1f62097 reverted the patch
for BUG#24487120. After merging the reverting patch from MySQL
to MariaDB the problems described in MDEV-11079 and MDEV-11631 disappeared.
Adding test cases only.
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LOAD DATA AT MASTER.
Revert "BUG#23080148 - BACKPORT BUG 14653594 AND BUG 20683959 TO"
This reverts commit 1d31f5b3090d129382b50b95512f2f79305715a1.
The commit causes replication incompatibility between minor revisions
and based on discussion with Srinivasarao, the patch is reverted.
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followed by a multi-byte character
Partially backporting MDEV-9874 from 10.2 to 10.0
READ_INFO::read_field() raised the ER_INVALID_CHARACTER_STRING error
when reading an escape character followed by a multi-byte character.
Raising wellformedness errors in READ_INFO::read_field() was wrong,
because the main goal of READ_INFO::read_field() is to *unescape* the
data which was presumably escaped using mysql_real_escape_string(),
using the same character set with the one specified in
"LOAD DATA INFILE ... CHARACTER SET ..." (or assumed by default).
During LOAD DATA, multi-byte characters are not always scanned as a single
entity! In case of escaped data, parts of a multi-byte character can be
scanned on different loop iterations. So the old code erroneously tested
welformedness in the middle of a multi-byte character.
Moreover, the data after unescaping can go into a BLOB field, not a text field.
Wellformedness tests are meaningless in this case.
Ater this patch, wellformedness is only checked later, during
Field::store(str,length,cs) time. The loop that scans bytes only
makes sure to revert the changes made by mysql_real_escape_string().
Note, in some cases users can supply data which did not really go through
mysql_real_escape_string() and was escaped by some other means,
or was not escaped at all. The file reported in this MDEV contains
the string "\ä", which is an example of such improperly escaped data, as
- either there should be two backslashes: "\\ä"
- or there should be no backslashes at all: "ä"
mysql_real_escape_string() could not generate "\ä".
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without a fix for Bug#12818255 (MDEV-6581)
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MYSQL-5.5
The bug asks for a backport of bug#1463594 and bug#20682959. This
is required because of the fact that if replication is enabled, master
transaction can commit whereas slave can't commit due to not exact
'enviroment'. This manifestation is seen in bug#22024200.
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LOCAL AND IMPORT ERRORS
Description:
-----------
This bug happens due to the fact that current algorithm is designed
that in the case of LOCAL load of data, in case of the error, the
remaining part of the file is read in order to return the proper
error message to the client side.
But, the problem with current implementation is that data stream
for the client side is cleared only in the case where line delimiters
exist, which is not a case with, for example fixed width
fields.
Fix:
----
Ported patch provided by Sinisa Milivojevic n bug report for this
issue to 5.5+ versions.
As part of this patch code is changed to clear the data stream
by calling new member function "READ_INFO::skip_data_till_eof".
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-----------
After compiling from source, during make test I got the following error:
test main.loaddata failed with error
CURRENT_TEST: main.loaddata
mysqltest: At line 592: query 'LOAD DATA INFILE 'tmpp.txt' INTO TABLE t1
CHARACTER SET ucs2
(@b) SET a=REVERSE(@b)' failed: 1115: Unknown character set: 'ucs2'
I noticed other tests are skipped because of no ucs2
main.mix2_myisam_ucs2 [ skipped ] Test requires:'
have_ucs2'
Should main.loaddata be skipped if there is no ucs2
How To Repeat:
-------------
Run make test on compiled source that doesn't have ucs2
Suggested fix:
-------------
the failing piece of the test should be moved from mysql-test/t/loaddata.test to
mysql-test/t/ctype_ucs.test.
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-----------
After compiling from source, during make test I got the following error:
test main.loaddata failed with error
CURRENT_TEST: main.loaddata
mysqltest: At line 592: query 'LOAD DATA INFILE 'tmpp.txt' INTO TABLE t1
CHARACTER SET ucs2
(@b) SET a=REVERSE(@b)' failed: 1115: Unknown character set: 'ucs2'
I noticed other tests are skipped because of no ucs2
main.mix2_myisam_ucs2 [ skipped ] Test requires:'
have_ucs2'
Should main.loaddata be skipped if there is no ucs2
How To Repeat:
-------------
Run make test on compiled source that doesn't have ucs2
Suggested fix:
-------------
the failing piece of the test should be moved from mysql-test/t/loaddata.test to
mysql-test/t/ctype_ucs.test.
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-----------
After compiling from source, during make test I got the following error:
test main.loaddata failed with error
CURRENT_TEST: main.loaddata
mysqltest: At line 592: query 'LOAD DATA INFILE 'tmpp.txt' INTO TABLE t1
CHARACTER SET ucs2
(@b) SET a=REVERSE(@b)' failed: 1115: Unknown character set: 'ucs2'
I noticed other tests are skipped because of no ucs2
main.mix2_myisam_ucs2 [ skipped ] Test requires:'
have_ucs2'
Should main.loaddata be skipped if there is no ucs2
How To Repeat:
-------------
Run make test on compiled source that doesn't have ucs2
Suggested fix:
-------------
the failing piece of the test should be moved from mysql-test/t/loaddata.test to
mysql-test/t/ctype_ucs.test.
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ERROR OCCURS"
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AND WRITES WITH U
Some multibyte sequences could be considered by my_mbcharlen() functions
as multibyte character but more exact my_ismbchar() does not think so.
In such a case this multibyte sequences is pushed into 'stack' buffer which
is too small to accommodate the sequence.
The fix is to allocate stack buffer in
compliance with max character length.
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and reverse() function
3 problems fixed :
1. The reported problem : caused by incorrect parsing of
the file as ucs data resulting in wrong length of the parsed
string. Fixed by truncating the invalid trailing bytes
(non-complete multibyte characters) when reading from the file
2. LOAD DATA when reading from a proper UCS2 file wasn't
recognizing the new line characters. Fixed by first looking
if a byte is a new line (or any other special) character before
reading it as a part of a multibyte character.
3. When using user variables to hold the column data in LOAD
DATA the character set of the user variable was set incorrectly
to the database charset. Fixed by setting it to the charset
specified by LOAD DATA (if any).
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on LOAD DATA
Two problems :
1. LOAD DATA was not checking for SQL errors and was sending an OK
packet even when there were errors reported already. Fixed to check for
SQL errors in addition to the error conditions already detected.
2. There was an over-ambitious assert() on the server to check if the
protocol is always followed by the client. This can cause crashes on
debug servers by clients not completing the protocol exchange for some
reason (e.g. --send command in mysqltest). Fixed by keeping the assert
only on client side, since the server always completes the protocol
exchange.
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Conflicts:
Text conflict in mysql-test/r/explain.result
Text conflict in mysql-test/t/explain.test
Text conflict in sql/net_serv.cc
Text conflict in sql/sp_head.cc
Text conflict in sql/sql_priv.h
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Iterative patch improvement. Previously committed patch
caused wrong result on Windows. The previous patch also
broke secure_file_priv for symlinks since not all file
paths which must be compared against this variable are
normalized using the same norm.
The server variable opt_secure_file_priv wasn't
normalized properly and caused the operations
LOAD DATA INFILE .. INTO TABLE ..
and
SELECT load_file(..)
to do different interpretations of the
--secure-file-priv option.
The patch moves code to the server initialization
routines so that the path always is normalized
once and only once.
It was also intended that setting the option
to an empty string should be equal to
lifting all previously set restrictions. This
is also fixed by this patch.
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Conflicts:
Text conflict in configure.in
Text conflict in dbug/dbug.c
Text conflict in mysql-test/r/ps.result
Text conflict in mysql-test/t/ps.test
Text conflict in sql/CMakeLists.txt
Text conflict in sql/ha_ndbcluster.cc
Text conflict in sql/mysqld.cc
Text conflict in sql/sql_plugin.cc
Text conflict in sql/sql_table.cc
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Correcting a patch misstake. The converted file path is placed in 'buff' not in opt_secure_file_priv.
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Conflicts:
Text conflict in mysql-test/suite/binlog/r/binlog_row_mix_innodb_myisam.result
Text conflict in sql/log.cc
Text conflict in sql/set_var.cc
Text conflict in sql/sql_class.cc
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function on windows
When making sure that the directory path ends up with a
slash/backslash we need to check for the correct length of
the buffer and trim at the appropriate location so we don't
write past the end of the buffer.
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function on windows
When making sure that the directory path ends up with a
slash/backslash we need to check for the correct length of
the buffer and trim at the appropriate location so we don't
write past the end of the buffer.
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col equal to itself!
There's no need to copy the value of a field into itself.
While generally harmless (except for some performance penalties)
it may be dangerous when the copy code doesn't expect this.
Fixed by checking if the source field is the same as the destination
field before copying the data.
Note that we must preserve the order of assignment of the null
flags (hence the null_value assignment addition).
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to string conversions and vice versa"
Initial import of the dtoa.c code and custom wrappers around it
to allow its usage from the server code.
Conversion of FLOAT/DOUBLE values to DECIMAL ones or strings
and vice versa has been significantly reworked. As the new
algoritms are more precise than the older ones, results of such
conversions may not always match those obtained from older
server versions. This in turn may break compatibility for some
applications.
This patch also fixes the following bugs:
- bug #12860 "Difference in zero padding of exponent between
Unix and Windows"
- bug #21497 "DOUBLE truncated to unusable value"
- bug #26788 "mysqld (debug) aborts when inserting specific
numbers into char fields"
- bug #24541 "Data truncated..." on decimal type columns
without any good reason"
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