Commit graph

102 commits

Author SHA1 Message Date
Sergei Golubchik
9ff0c9f730 MDEV-5858 MySQL Bug#12744991 - DECIMAL_ROUND(X,D) GIVES WRONG RESULTS WHEN D == N*(-9)
don't use mysql-5.6 change.
correct fix: zero-out rounded tail after the number was shifted because
of the carry digit (otherwise the carry digit will be zeroed out too).
2014-03-20 09:50:45 +01:00
Alexander Barkov
ce3c457e6d MDEV-5781 Item_sum_std::val_real(): Assertion `nr >= 0.0' fails on query with STDDEV_POP, ROUND and variable 2014-03-23 19:43:01 +04:00
Sergei Golubchik
b381cf843c mysql-5.5.31 merge 2013-05-07 13:05:09 +02:00
Venkatesh Duggirala
3c5326f8cc Bug#16084594 USER_VAR ITEM IN 'LOAD FILE QUERY' WAS NOT
PROPERLY QUOTED IN BINLOG FILE
Merging fix from mysql-5.1
2013-01-28 14:58:55 +05:30
Sergei Golubchik
2ccf247e93 after merge changes:
* rename all debugging related command-line options
  and variables to start from "debug-", and made them all
  OFF by default.
* replace "MySQL" with "MariaDB" in error messages
* "Cast ... converted ... integer to it's ... complement"
  is now a note, not a warning
* @@query_cache_strip_comments now has a session scope,
  not global.
2011-12-12 23:58:40 +01:00
Sergei Golubchik
0e007344ea mysql-5.5.18 merge 2011-11-03 19:17:05 +01:00
Sergei Golubchik
76f0b94bb0 merge with 5.3
sql/sql_insert.cc:
  CREATE ... IF NOT EXISTS may do nothing, but
  it is still not a failure. don't forget to my_ok it.
  ******
  CREATE ... IF NOT EXISTS may do nothing, but
  it is still not a failure. don't forget to my_ok it.
sql/sql_table.cc:
  small cleanup
  ******
  small cleanup
2011-10-19 21:45:18 +02:00
Tor Didriksen
d72fefe986 Bug#12711164 - 61676: RESULT OF DIV WITH DECIMAL AND INTEGER DOES NOT MAKE SENSE
Truncate result of decimal division before converting to integer.


mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
sql/item_func.cc:
  Item_func_int_div::val_int():
  Truncate result of decimal division before converting to integer.
2011-07-18 11:21:14 +02:00
Tor Didriksen
1a02a37243 Bug#12537160 ASSERTION FAILED: STOP0 <= &TO->BUF[TO->LEN] WITH LARGE NUMBER.
Turns out the DBUG_ASSERT added by fix for Bug#11792200 was overly pessimistic:
'stop0' is used in the main loop of do_div_mod, but we only dereference 'buf0'
for div operations, not for mod.


mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
strings/decimal.c:
  Move DBUG_ASSERT down to where we actually dereference the loop pointer.
2011-07-18 09:47:39 +02:00
Sergei Golubchik
b4a0b2c2f8 post-merge fixes.
most tests pass.
5.3 merge is next
2011-07-02 22:12:12 +02:00
Sergei Golubchik
9809f05199 5.5-merge 2011-07-02 22:08:51 +02:00
Sergey Glukhov
9d42d36e7e 5.1 -> 5.5 merge 2011-05-26 14:09:25 +04:00
Sergey Glukhov
3efbf30457 Bug#12392636 ASSERTION FAILED: SCALE >= 0 && PRECISION > 0 && SCALE <= PRECISION
Assertion happens due to missing NULL value check in
Item_func_round::fix_length_and_dec() function.
The fix: added NULL value check for second parameter.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  added NULL value check for second parameter.
2011-05-26 14:06:39 +04:00
Michael Widenius
f610296d98 Changed MariaDB error numbers to start from 1900 to not conflict with MySQL error numbers
extra/comp_err.c:
  Allow one to have multiple start-error-numbers in the same error.txt file.
  Generate 'empty' error strings for the missing error numbers in the errmsg.sys file
mysql-test/r/bigint.result:
  Update results to use new error numbers
mysql-test/r/dyncol.result:
  Update results to use new error numbers
mysql-test/r/func_math.result:
  Update results to use new error numbers
mysql-test/r/func_str.result:
  Update results to use new error numbers
mysql-test/r/plugin.result:
  Update results to use new error numbers
mysql-test/r/table_options.result:
  Update results to use new error numbers
mysql-test/r/type_newdecimal.result:
  Update results to use new error numbers
mysql-test/r/warnings.result:
  Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_ins_upd_innodb.result:
  Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_ins_upd_myisam.result:
  Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_misc.result:
  Update results to use new error numbers
sql/derror.cc:
  Ensure we don't read a errmsg.sys with a missing required error message;  This change was needed as errmsg.sys may now contain empty error messages between the MySQL and MariaDB error messages.
  If error message file didn't exist and we have not read one in the past, don't continue.
  Give better error message if the errmsg.sys header has changed.
sql/share/errmsg.txt:
  Create new section, starting from 1900, for MariaDB error messages
2011-05-21 00:46:18 +03:00
Michael Widenius
f09f1c7c7d Merge with dynamic column code 2011-05-12 14:30:34 +03:00
Michael Widenius
03483e7bfd Merge with main 5.3 2011-05-08 14:46:32 +03:00
Michael Widenius
5ab92b1f85 Adding support for Dynamic columns (WL#34):
- COLUMN_CREATE(column_nr, value, [column_nr,value]...)
- COLUMN_ADD(blob,column_nr, value, column_nr,value]...)
- COLUMN_DELETE(blob, column_nr, column_nr...)
- COLUMN_EXISTS(blob, column_nr)
- COLUMN_LIST(blob, column_nr)
- COLUMN_GET(string, column_nr AS type)

Added cast(X as DOUBLE) and cast(x as INT)
Better warning and error messages for wrong cast's
Created some sub functions to simplify and reuse code.
Added a lot of conversation functions with error/warnings for what went wrong.
Fixed some issues when casting time to datetime.
Added functions to dynamic strings and Strings to allow one to move a string buffer from dynamic strings to String (to save malloc+ copy)
Added dynamic columns library to libmysqlclient


include/Makefile.am:
  Added ma_dyncol.h
include/decimal.h:
  Added 'const' to arguments for some functions.
include/my_sys.h:
  Added dynstr_reassociate()
include/my_time.h:
  Added TIME_SUBSECOND_RANGE
  Added double_to_datetime()
  Added flag argument to str_to_time()
libmysql/CMakeLists.txt:
  Added mysys/ma_dyncol.c
libmysql/Makefile.shared:
  Added ma_dyncol
libmysql/libmysql.c:
  Added argument to str_to_time()
mysql-test/r/bigint.result:
  Better error messages
mysql-test/r/cast.result:
  Better warning and error messages
  A lot of new cast() tests
mysql-test/r/func_math.result:
  Better warning messages
mysql-test/r/func_str.result:
  Better warning messages
mysql-test/r/func_time.result:
  Better warning messages
mysql-test/r/sp-vars.result:
  Better warning messages
mysql-test/r/strict.result:
  Better warning messages
  New test result
mysql-test/r/type_newdecimal.result:
  Better warning messages
mysql-test/r/warnings.result:
  Better warning messages
mysql-test/suite/funcs_1/r/innodb_func_view.result:
  Updated results after better cast warnings
mysql-test/suite/funcs_1/r/memory_func_view.result:
  Updated results after better cast warnings
mysql-test/suite/funcs_1/r/myisam_func_view.result:
  Updated results after better cast warnings
mysql-test/suite/optimizer_unfixed_bugs/t/bug43448.test:
  Added begin...commit to speed up test.
mysql-test/suite/parts/inc/part_supported_sql_funcs_delete.inc:
  Added begin...commit to speed up test.
mysql-test/suite/parts/inc/partition_supported_sql_funcs.inc:
  Added begin...commit to speed up test.
mysql-test/suite/parts/r/part_supported_sql_func_innodb.result:
  Added begin...commit to speed up test.
mysql-test/suite/parts/r/part_supported_sql_func_myisam.result:
  Added begin...commit to speed up test.
mysql-test/suite/parts/r/rpl_partition.result:
  Added begin...commit to speed up test.
mysql-test/suite/parts/t/part_supported_sql_func_innodb.test:
  Removed duplicated --big_test
mysql-test/suite/parts/t/rpl_partition.test:
  Added begin...commit to speed up test.
mysql-test/suite/pbxt/r/cast.result:
  Updated results after better cast warnings
mysql-test/suite/pbxt/r/func_str.result:
  Updated results after better cast warnings
mysql-test/suite/pbxt/r/type_newdecimal.result:
  Updated results after better cast warnings
mysql-test/suite/rpl/r/rpl_innodb_bug28430.result:
  Added begin...commit to speed up test.
mysql-test/suite/rpl/t/rpl_innodb_bug28430.test:
  Added begin...commit to speed up test.
mysql-test/suite/vcol/r/vcol_supported_sql_funcs_innodb.result:
  More warnings
mysql-test/suite/vcol/r/vcol_supported_sql_funcs_myisam.result:
  More warnings
mysql-test/t/cast.test:
  A lot of new cast() tests
mysql-test/t/strict.test:
  Added new test
mysys/CMakeLists.txt:
  Added ma_dyncol.c
mysys/Makefile.am:
  Added ma_dyncol.c
mysys/string.c:
  Added dynstr_reassociate() to move a buffer from dynamic_strings to some other allocator
sql-common/my_time.c:
  Added 'fuzzydate' flag to str_to_time()
  Added support for microseconds to my_time_to_str() and my_datetime_to_str()
  Reset second_parts in number_to_datetime()
  Added double_to_datetime()
sql/field.cc:
  Added double_to_longlong() and truncate_double() to simplify and reuse code
sql/field.h:
  New prototypes
sql/item.cc:
  Changed Item::get_date(MYSQL_TIME *ltime,uint fuzzydate) to be aware of type of argument.
  (Needed to make it microsecond safe and get better warnings).
  Updated call to str_to_time_with_warn()
sql/item.h:
  Added struct st_dyncall_create_def used by dynamic columns
  Added virtual bool dynamic_result() to tell if type of argument may change over calls.
sql/item_cmpfunc.cc:
  Added Item_func_dyncol_exists()
sql/item_cmpfunc.h:
  Added class Item_func_dyncol_exists
sql/item_create.cc:
  Added get_length_and_scale() to simplify other functions
  Simplified and extended create_func_cast()
  Added support for cast(X as double(X,Y))
  Added functions to create dynamic column functions.
sql/item_create.h:
  Added prototypes
sql/item_func.cc:
  Extended cast functions Item_func_signed() and Item_func_unsigned() to work with dynamic types
  Added Item_double_typecast()
sql/item_func.h:
  Added class Item_double_typecast()
sql/item_strfunc.cc:
  Added functions for COLUMN_CREATE(), COLUMN_ADD(), COLUMN_GET() and COLUMN_LIST()
sql/item_strfunc.h:
  Added classes for COLUMN_CREATE(), COLUMN_ADD(), COLUMN_GET() and COLUMN_LIST()
sql/item_timefunc.cc:
  Added flag argument to str_to_time_with_warn()
  Updated Item_char_typecast() to handle result type that may change between calls (for dynamic columns)
  Added Item_time_typecast::get_date() to ensure that we cast a datetime to time properly.
sql/item_timefunc.h:
  Added get_date() to Item_time_typecast() to allow proper results for casting time to datetime
sql/lex.h:
  Added new SQL function names
sql/my_decimal.cc:
  Added 'const' to some arguments.
  Better error message in case of errors (we now print out the wrong value)
  Added my_decimal2int()
sql/my_decimal.h:
  Moved some constants to my_decimal_limits.h
  Updated prototypes.
  Made my_decimal2int() a function as it's rather long (no reason to have it inline)
  Added decimal2my_decimal() function.
sql/mysql_priv.h:
  Prototypes for new functions
sql/share/errmsg.txt:
  New error messages for wrong casts and dynamic columns
sql/sql_acl.cc:
  Fixed indentation
sql/sql_base.cc:
  Added dynamic_column_error_message()
sql/sql_string.h:
  Added reassociate() to move a buffer to be owned by String object.
sql/sql_yacc.yy:
  Added syntax for COLUMN_ functions.
sql/time.cc:
  Updated str_to_datetime_with_warn() flag argument to same type as other functions
  Added conversion flag to str_to_time_with_warn() (Similar to all datetime functions)
  Added conversion functions with warnings: double_to_datetime_with_warn() and decimal_to_datetime_with_warn()
strings/decimal.c:
  Added 'const' to arguments for some functions.
unittest/mysys/Makefile.am:
  Added test for dynamic columns code
2011-05-08 13:24:06 +03:00
Sergei Golubchik
0accbd0364 lots of post-merge changes 2011-04-25 17:22:25 +02:00
Sergey Glukhov
90bbf9d615 Bug#11765923 58937: MANY VALGRIND ERRORS AFTER GROUPING BY RESULT OF DECIMAL COLUMN FUNCTION
Bug#11764671  57533: UNINITIALISED VALUES IN COPY_AND_CONVERT (SQL_STRING.CC) WITH CERTAIN CHA
When ROUND evaluates decimal result it uses Item::decimal
value as fraction value for the result. In some cases
Item::decimal is greater than real result fraction value
and uninitialised memory of result(decimal) buffer can be
used in further calculations. Issue is introduced by
Bug33143 fix. The fix is to remove erroneous assignment.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  remove erroneous assignment
2011-04-20 11:39:20 +04:00
Sergey Glukhov
876c17aa94 5.1 -> 5.5 merge 2011-04-20 11:52:40 +04:00
Sergey Glukhov
4ab6313b81 5.1 -> 5.5 merge 2011-03-28 12:52:47 +04:00
Sergey Glukhov
a88faf2a4a Bug#11764994 57900: CREATE TABLE .. SELECT ASSERTS SCALE >= 0 && PRECISION > 0 && SCALE <= PR
Assert fails due to overflow which happens in
Item_func_int_val::fix_num_length_and_dec() as
geometry functions have max_length value equal to
max_field_size(4294967295U). The fix is to skip
max_length calculation for some boundary cases.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  skip max_length calculation
  if argument max_length is near max_field_size.
2011-03-28 12:35:50 +04:00
Tor Didriksen
ef19b3b6cf Bug #11792200 - DIVIDING LARGE NUMBERS CAUSES STACK CORRUPTIONS
This was a buffer overrun in do_div_mod(), overwriting the internal buffer
of auto variable 'tmp' in Item_func_int_div::val_int.
Result on windows: 'this' is set to zero, and crash.
Ran fine on other platforms (no valgrind warnings),
but this is undefined behaviour on any platform of course.

include/decimal.h:
  Add const qualifiers to function prototypes which are used by sql/my_decimal.h
mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
sql/my_decimal.h:
  Remove several C-style casts:
   - some of the were up-casts, and thus un-necessary
   - some of them should have been const-casts, but it is better to make the
     underlying library functions in (decimal.[h|c]) const instead.
strings/decimal.c:
  Check for buffer overrun in do_div_mod()
  Add const qualifiers to functions which are used by sql/my_decimal.h
2011-03-03 15:25:41 +01:00
Tor Didriksen
175e89260e Bug #59498 div function broken in mysql-trunk
mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
sql/item_func.cc:
  Check for null before converting value to my_decimal.
2011-01-14 15:03:37 +01:00
Tor Didriksen
7bf234032a Bug #59241 invalid memory read in do_div_mod with doubly assigned variables
Fix: copy my_decimal by value, to avoid dangling pointers.


mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
sql/item_cmpfunc.cc:
  No need to call fix_buffer_pointer() anymore.
sql/item_func.cc:
  Copy my_decimal by value, to avoid dangling pointers.
sql/my_decimal.h:
  Implement proper copy constructor and assignment operator for my_decimal.
sql/sql_analyse.cc:
  No need to call fix_buffer_pointer() anymore.
strings/decimal.c:
  Remove #line directive: it messes up TAGS and it confuses gdb when debugging.
2011-01-14 10:05:14 +01:00
Sergey Glukhov
0a1433d7b0 5.1-bugteam->5.5-bugteam merge 2010-12-24 14:21:44 +03:00
Sergey Glukhov
bc56dcea9d Bug#57810 case/when/then : Assertion failed: length || !scale
ASSERT happens due to improper calculation of the max_length
in Item_func_div object, if dividend has max_length == 0 then
Item_func_div::max_length is set to 0 under some circumstances.
The fix:
If decimals == NOT_FIXED_DEC then set
Item_func_div::max_length to max possible
DOUBLE length value.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  The fix:
  If decimals == NOT_FIXED_DEC then set
  Item_func_div::max_length to max possible
  DOUBLE length value.
2010-12-24 14:05:04 +03:00
Georgi Kodinov
6fe1b33f20 merge 2010-11-26 16:32:51 +02:00
Tor Didriksen
36ab257491 Bug #58137 char(0) column cause: my_gcvt: Assertion `width > 0 && to != ((void *)0)' failed
mysql-test/r/func_math.result:
  Add test for Bug #58137
mysql-test/t/func_math.test:
  Add test for Bug #58137
sql/field.cc:
  Skip calling my_gcvt() if we are trying to insert a double into a char(0) column.
2010-11-17 16:39:35 +01:00
Sergey Glukhov
c7371c9e75 Bug#57477 SIGFPE when dividing a huge number a negative number
The problem is dividing by const value when
the result is out of supported range.
The fix:
-return LONGLONG_MIN if the result is out of supported range for DIV operator.
-return 0 if divisor is -1 for MOD operator.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  -return LONGLONG_MIN if the result is out of supported range for DIV operator.
  -return 0 if divisor is -1 for MOD operator.
2010-10-27 18:12:10 +04:00
Tor Didriksen
c8d7a31f35 Bug#57209 valgrind + Assertion failed: dst > buf
Buffer overrun when trying to format DBL_MAX


mysql-test/r/func_math.result:
  Add test case for Bug#57209
mysql-test/t/func_math.test:
  Add test case for Bug#57209
sql/item_strfunc.cc:
  Allocate a larger buffer for the result.
2010-10-08 11:52:09 +02:00
Alexey Kopytov
72afe82ab9 Manual merge. 2010-03-19 11:29:12 +03:00
Alexey Kopytov
2acfdc5092 Bug #8433: Overflow must be an error
All numeric operators and functions on integer, floating point 
and DECIMAL values now throw an 'out of range' error rather 
than returning an incorrect value or NULL,  when the result is 
out of supported range for the corresponding data type. 
 
Some test cases in the test suite had to be updated 
accordingly either because the test case itself relied on a 
value returned in case of a numeric overflow, or because a 
numeric overflow was the root cause of the corresponding bugs. 
The latter tests are no longer relevant, since the expressions 
used to trigger the corresponding bugs are not valid anymore. 
However, such test cases have been adjusted and kept "for the 
record". 

mysql-test/r/func_math.result:
  Added test cases for bug #8433. 
  Updated results of the test case for bug #31236.
mysql-test/r/func_misc.result:
  Streamlined test cases.
mysql-test/r/func_test.result:
  Streamlined test cases.
mysql-test/r/select.result:
  Streamlined test cases.
mysql-test/r/sp.result:
  Streamlined test cases.
mysql-test/r/strict.result:
  Streamlined test cases.
mysql-test/r/type_newdecimal.result:
  Streamlined test cases.
mysql-test/suite/sys_vars/r/sql_slave_skip_counter_basic.result:
  Streamlined test cases.
mysql-test/suite/sys_vars/t/sql_slave_skip_counter_basic.test:
  Streamlined test cases.
mysql-test/t/func_math.test:
  Added test cases for bug #8433. 
  Updated results of the test case for bug #31236.
mysql-test/t/func_misc.test:
  Streamlined test cases.
mysql-test/t/func_test.test:
  Streamlined test cases.
mysql-test/t/select.test:
  Streamlined test cases.
mysql-test/t/sp.test:
  Streamlined test cases.
mysql-test/t/strict.test:
  Streamlined test cases.
mysql-test/t/type_newdecimal.test:
  Streamlined test cases.
sql/item_create.cc:
  Changed Item_func_cot() to be defined as a standalone Item
  rather than a combination of "1 / TAN(x)".
sql/item_func.cc:
  Throw an 'out of range' error rather than returning an  
  incorrect value or NULL,  when the result of a numeric 
  operator or a function is out of supported range for  
  the corresponding data type.
sql/item_func.h:
  Added validation helpers as inline methods of Item_func.
sql/share/errmsg-utf8.txt:
  New ER_DATA_OUT_OF_RANGE error.
2010-03-18 13:38:29 +03:00
Alexey Kopytov
12f364ece7 Backport of WL #2934: Make/find library for doing float/double
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"
2009-12-22 19:23:13 +03:00
Alexey Kopytov
8c1dfab38d Merged from mysql-next-mr-bugfixing.
Updated the result file for func_math.
2009-11-21 19:46:50 +03:00
Alexey Kopytov
7e3b4d21c0 Backport of the patch for bug #8457 "Precision math: DIV
returns incorrect result with large decimal value" 
 
For the DIV operator, neither operands nor result were checked 
for integer overflows. 
 
This patch changes the DIV behavior for non-integer operands as 
follows: if either of the operands has a non-integer type, 
convert both operands to the DECIMAL type, then calculate the 
division using DECIMAL arithmetics. Convert the resulting 
DECIMAL value into BIGINT [UNSIGNED] if it fits into the 
corresponding range, or throw an 'out of range' error 
otherwise. 

mysql-test/r/func_math.result:
  Added a test case for bug #8457.
  Fixed results for a test case depending on the wrong behavior.
mysql-test/r/type_varchar.result:
  Fixed results for a test case depending on the wrong behavior.
mysql-test/t/func_math.test:
  Added a test case for bug #8457.
sql/item_func.cc:
  If either of the operands has a non-integer type, convert both 
  operands to the DECIMAL type, then calculate the division using 
  DECIMAL arithmetics. Convert the resulting DECIMAL value into 
  BIGINT [UNSIGNED] if it fits into the corresponding range, or 
  throw an 'out of range' error otherwise.
2009-10-13 12:31:42 +04:00
Staale Smedseng
220d9b8c4a This is a backport of the two patches for Bug #28299:
To-number conversion warnings work differenly with CHAR 
and VARCHAR sp variables.

The original revision-IDs are:
  staale.smedseng@sun.com-20081124095339-2qdvzkp0rn1ljs30
  staale.smedseng@sun.com-20081125104611-rtxic5d12e83ag2o
                                                
The patch provides ER_TRUNCATED_WRONG_VALUE warning messages
for conversion of VARCHAR to numberic values, in line with
messages provided for CHAR conversions. Conversions are
checked for success, and the message is emitted in case
failure.
                                                
The tests are amended to accept the added warning messages,
and explicit conversion of ON/OFF values is added for
statements checking system variables. In test
rpl.rpl_switch_stm_row_mixed checking for warnings is
temporarily disabled for one statement, as this generates
warning messages for strings that vary between executions.


sql/field.cc:
  The pushing of the truncation warning is now done in a
  separate static function, and used in various places.
2009-10-09 15:34:07 +02:00
Marc Alff
63e56390a3 WL#2110 (SIGNAL)
WL#2265 (RESIGNAL)

Manual merge of SIGNAL and RESIGNAL to mysql-trunk-signal,
plus required dependencies.
2009-09-10 03:18:29 -06:00
Sergey Glukhov
86e425fe11 5.0-bugteam->5.1-bugteam merge 2009-06-02 12:00:37 +05:00
Sergey Glukhov
33734e956f Bug#45152 crash with round() function on longtext column in a derived table
The crash happens due to wrong max_length value which is set on
Item_func_round::fix_length_and_dec() stage. The value is set to
args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
The fix is to set max_length using float_length() function.



mysql-test/r/func_math.result:
  test result
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  The crash happens due to wrong max_length value which is set on
  Item_func_round::fix_length_and_dec() stage. The value is set to
  args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
  The fix is to set max_length using float_length() function.
2009-06-02 11:38:13 +05:00
Gleb Shchepa
405bd2af11 Bug #44768: SIGFPE crash when selecting rand from a view containing null
The RAND(N) function where the N is a field of "constant" table
(table of single row) failed with a SIGFPE.

Evaluation of RAND(N) rely on constant status of its argument.
Current server "seeded" random value for each constant argument
only once, in the Item_func_rand::fix_fields method.
Then the server skipped a call to seed_random() in the
Item_func_rand::val_real method for such constant arguments.

However, non-constant state of an argument may be changed
after the call to fix_fields, if an argument is a field of
"constant" table. Thus, pre-initialization of random value
in the fix_fields method is too early.


Initialization of random value by seed_random() has been
removed from Item_func_rand::fix_fields method.
The Item_func_rand::val_real method has been modified to
call seed_random() on the first evaluation of this method
if an argument is a function.


mysql-test/r/func_math.result:
  Added test case for bug #44768.
mysql-test/t/func_math.test:
  Added test case for bug #44768.
sql/item_func.cc:
  Bug #44768: SIGFPE crash when selecting rand from a view containing null
  
  1. Initialization of random value by seed_random() has been
     removed from Item_func_rand::fix_fields method.
  2. The Item_func_rand::val_real method has been modified to
     call seed_random() on the first evaluation of this method
     if an argument is a function.
sql/item_func.h:
  Bug #44768: SIGFPE crash when selecting rand from a view containing null
  
  1. The Item_func_rand::first_eval has been added to trace
     the first evaluation of the val_real method.
  2. The Item_func_rand::cleanup method has been added to
     cleanup the first_eval flag.
2009-05-18 09:21:25 +05:00
Alexey Kopytov
8ae8162403 Manual merge to 5.1. 2009-02-23 14:42:31 +02:00
Alexey Kopytov
0e62c9aa63 Fix for bug #15936: "round" differs on Windows to Unix
Both of our own implementations of rint(3) were inconsistent with the
most common behavior of rint() on those platforms that have it: round
to nearest, break ties by rounding to nearest even.

Fixed by leaving just one implementation of rint() in our source tree,
and changing its behavior to match the most common native
implementations on other platforms.

configure.in:
  Added checks for fenv.h and fesetround().
include/config-win.h:
  Removed the incorrect implementation of rint() for Windows.
include/my_global.h:
  Added an rint() implementation for platforms that do not have it.
mysql-test/r/func_math.result:
  Added a test case for bug #15936.
mysql-test/t/func_math.test:
  Added a test case for bug #15936.
sql/mysqld.cc:
  Explicitly set the FPU rounding mode with fesetround().
2009-02-23 14:28:26 +02:00
Alexey Kopytov
1571f06196 Merge into dev tree. 2009-02-10 16:27:35 +03:00
Alexey Kopytov
a01946373d Fix for bug #21205: Different number of digits for float/double/real in --ps-protocol
Various parts of code used different 'precision' arguments for sprintf("%g") when converting
floating point numbers to a string. This led to differences in results in some cases 
depending on whether the text-based or prepared statements protocol is used for a query.

Fixed by changing arguments to sprintf("%g") to always be 15 (DBL_DIG) so that results are
consistent regardless of the protocol.

This patch will be null-merged to 6.0 as the problem does not exists there (fixed by the
patch for WL#2934).

client/sql_string.cc:
  Use 15 (DBL_DIG) as a precision argument for sprintf(), as Field_double::val_str() does.
libmysql/libmysql.c:
  Use 15 (DBL_DIG) as a precision argument for sprintf(), as Field_double::val_str() does.
mysql-test/r/archive_gis.result:
  Fixed test results to take additional precision into account.
mysql-test/r/func_group.result:
  Fixed test results to take additional precision into account.
mysql-test/r/func_math.result:
  Fixed test results to take additional precision into account.
mysql-test/r/func_str.result:
  Fixed test results to take additional precision into account.
mysql-test/r/gis.result:
  Fixed test results to take additional precision into account.
mysql-test/r/innodb_gis.result:
  Fixed test results to take additional precision into account.
mysql-test/r/select.result:
  Fixed test results to take additional precision into account.
mysql-test/r/sp.result:
  Fixed test results to take additional precision into account.
mysql-test/r/type_float.result:
  Fixed test results to take additional precision into account.
mysql-test/t/type_float.test:
  Fixed test results to take additional precision into account.
sql/sql_string.cc:
  Use 15 (DBL_DIG) as a precision argument for sprintf(), as Field_double::val_str() does.
2009-01-28 20:59:08 +03:00
unknown
61c31af45d Fix for bug #31236: Inconsistent division by zero behavior for
floating point numbers

Some math functions did not check if the result is a valid number
(i.e. neither of +-inf or nan).

Fixed by validating the result where necessary and returning NULL in
case of invalid result.


BitKeeper/deleted/.del-matherr.c:
  Rename: sql/matherr.c -> BitKeeper/deleted/.del-matherr.c
configure.in:
  Removed DONT_USE_FINITE, it is not used anywhere.
include/my_global.h:
  isfinite() is a C99 macro which absoletes finite(). First try to use
  it, then fall back to finite() if the target platform has it,
  otherwise use our own implementation.
mysql-test/r/func_math.result:
  Added a test case for bug #31236.
mysql-test/r/strict.result:
  Fixed a test case which relied on old behavior.
mysql-test/t/func_math.test:
  Added a test case for bug #31236.
mysql-test/t/strict.test:
  Fixed a test case which relied on old behavior.
sql/field.cc:
  No need to check if the finite() or its equivalent is available.
sql/item_func.cc:
  Use fix_result() wherever the result can be one of +-inf or nan, 
  assuming the function arguments are valid numbers.
  Removed fix_result() from functions that are defined for all possible
  input numbers.
sql/item_func.h:
  Moved fix_result() from Item_dec_func to Item_func which is a common
  ancestor for Item_dec_func and Item_num_op.
sql/unireg.h:
  Removed POSTFIX_ERROR because no code returns it.
2008-02-20 00:33:43 +03:00
unknown
163ba66c3f merge 5.0-opt -> 5.1-opt
mysql-test/r/func_math.result:
  Auto merged
mysql-test/t/func_math.test:
  Auto merged
mysql-test/t/view_grant.test:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
2007-10-01 12:56:25 +03:00
unknown
0ad23eb8a5 removed undeterministic test result from the fux for bug 30587 2007-10-01 12:51:59 +03:00
unknown
fb05833eac fixed pb problem with the fix for bug 30587 2007-10-01 11:32:29 +03:00
unknown
82c059cf2f Merge macbook:mysql/work/B30587-5.0-opt
into  magare.gmz:/home/kgeorge/mysql/work/B30587-5.1-opt


mysql-test/r/func_math.result:
  Auto merged
mysql-test/t/func_math.test:
  Auto merged
sql/item_func.cc:
  Auto merged
2007-09-28 17:03:14 +03:00