History log of /php-src/ext/mysqlnd/config9.m4 (Results 1 – 25 of 65)
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# f119b61d 09-Oct-2023 Peter Kokot

Remove redundant code in ext/mysqlnd build (#12384)

This was once used by the ext/mysqli when building without ext/mysqlnd
and the ext/mysqlnd/php_mysqlnd_config.h file was created in th

Remove redundant code in ext/mysqlnd build (#12384)

This was once used by the ext/mysqli when building without ext/mysqlnd
and the ext/mysqlnd/php_mysqlnd_config.h file was created in the build
directory.

show more ...


# 9026596f 21-Aug-2023 Peter Kokot

Sync --enable-mysqlnd-compression-support option (#12006)

This syncs the style of the --enable-mysqlnd-compression-support option
name, otherwise in Autoconf both --enable-foo_bar and --

Sync --enable-mysqlnd-compression-support option (#12006)

This syncs the style of the --enable-mysqlnd-compression-support option
name, otherwise in Autoconf both --enable-foo_bar and --enable-foo-bar
work.

Also the configure output message is synced to match the check
information.

show more ...


Revision tags: php-8.2.0RC1, php-8.1.10, php-8.0.23, php-8.0.23RC1, php-8.1.10RC1, php-8.2.0beta3, php-8.2.0beta2, php-8.1.9, php-8.0.22, php-8.1.9RC1, php-8.2.0beta1, php-8.0.22RC1, php-8.0.21, php-8.1.8, php-8.2.0alpha3, php-8.1.8RC1, php-8.2.0alpha2, php-8.0.21RC1, php-8.0.20, php-8.1.7, php-8.2.0alpha1, php-7.4.30, php-8.1.7RC1, php-8.0.20RC1, php-8.1.6, php-8.0.19, php-8.1.6RC1, php-8.0.19RC1, php-8.0.18, php-8.1.5, php-7.4.29, php-8.1.5RC1, php-8.0.18RC1, php-8.1.4, php-8.0.17, php-8.1.4RC1, php-8.0.17RC1, php-8.1.3, php-8.0.16, php-7.4.28, php-8.1.3RC1, php-8.0.16RC1, php-8.1.2, php-8.0.15, php-8.1.2RC1, php-8.0.15RC1, php-8.0.14, php-8.1.1, php-7.4.27, php-8.1.1RC1, php-8.0.14RC1, php-7.4.27RC1, php-8.1.0, php-8.0.13, php-7.4.26, php-7.3.33, php-8.1.0RC6, php-7.4.26RC1, php-8.0.13RC1, php-8.1.0RC5, php-7.3.32, php-7.4.25, php-8.0.12, php-8.1.0RC4, php-8.0.12RC1, php-7.4.25RC1, php-8.1.0RC3, php-8.0.11, php-7.4.24, php-7.3.31, php-8.1.0RC2, php-7.4.24RC1, php-8.0.11RC1, php-8.1.0RC1, php-7.4.23, php-8.0.10, php-7.3.30, php-8.1.0beta3, php-8.0.10RC1, php-7.4.23RC1, php-8.1.0beta2, php-8.0.9, php-7.4.22, php-8.1.0beta1, php-7.4.22RC1, php-8.0.9RC1, php-8.1.0alpha3, php-7.4.21, php-7.3.29, php-8.0.8, php-8.1.0alpha2, php-7.4.21RC1, php-8.0.8RC1, php-8.1.0alpha1, php-8.0.7, php-7.4.20, php-8.0.7RC1, php-7.4.20RC1, php-8.0.6, php-7.4.19, php-7.4.18, php-7.3.28, php-8.0.5, php-8.0.5RC1, php-7.4.18RC1, php-8.0.4RC1, php-7.4.17RC1, php-8.0.3, php-7.4.16, php-8.0.3RC1, php-7.4.16RC1, php-8.0.2, php-7.4.15, php-7.3.27, php-8.0.2RC1, php-7.4.15RC2, php-7.4.15RC1, php-8.0.1, php-7.4.14, php-7.3.26, php-7.4.14RC1, php-8.0.1RC1, php-7.3.26RC1, php-8.0.0, php-7.3.25, php-7.4.13, php-8.0.0RC5, php-7.4.13RC1, php-8.0.0RC4, php-7.3.25RC1, php-7.4.12, php-8.0.0RC3, php-7.3.24, php-8.0.0RC2, php-7.4.12RC1, php-7.3.24RC1, php-7.2.34, php-8.0.0rc1, php-7.4.11, php-7.3.23, php-8.0.0beta4, php-7.4.11RC1, php-7.3.23RC1, php-8.0.0beta3, php-7.4.10, php-7.3.22, php-8.0.0beta2, php-7.3.22RC1, php-7.4.10RC1, php-8.0.0beta1, php-7.4.9, php-7.2.33, php-7.3.21, php-8.0.0alpha3, php-7.4.9RC1, php-7.3.21RC1, php-7.4.8, php-7.2.32, php-8.0.0alpha2, php-7.3.20, php-8.0.0alpha1, php-7.4.8RC1, php-7.3.20RC1, php-7.4.7, php-7.3.19
# 4984bd10 04-Jun-2020 Nikita Popov

Remove MYSQLND_COMPRESSION_WANTED define

Instead directly define MYSQLND_COMPRESSION_ENABLED. This also
matches what config.w32 does.

Revision tags: php-7.4.7RC1, php-7.3.19RC1, php-7.4.6, php-7.2.31, php-7.4.6RC1, php-7.3.18RC1, php-7.2.30, php-7.4.5, php-7.3.17, php-7.4.5RC1, php-7.3.17RC1, php-7.3.18, php-7.4.4, php-7.2.29, php-7.3.16, php-7.4.4RC1, php-7.3.16RC1, php-7.4.3, php-7.2.28, php-7.3.15RC1, php-7.4.3RC1, php-7.3.15, php-7.2.27, php-7.4.2, php-7.3.14, php-7.3.14RC1, php-7.4.2RC1, php-7.4.1, php-7.2.26, php-7.3.13, php-7.4.1RC1, php-7.3.13RC1, php-7.2.26RC1, php-7.4.0
# ee4295b4 25-Nov-2019 Arjen de Korte

Fix bug #78823: add zlib library to mysqlnd

The problem is newer binutils will no longer default to --copy-dt-needed-entries but use --no-copy-dt-needed-entries instead. So all libraries nee

Fix bug #78823: add zlib library to mysqlnd

The problem is newer binutils will no longer default to --copy-dt-needed-entries but use --no-copy-dt-needed-entries instead. So all libraries needed *must* be provided.

Workarounds (either one works)
1) Add "-Wl,--copy-dt-needed-entries" to LDFLAGS to bring back the old behavior of the linker
2) Add "-lz" to list of libraries to be added

In "ext/mysqlnd/mysqlnd_protocol_frame_codec.c" when the "zlib.h" header is included should also trigger adding '-lz' to the list of libraries.

show more ...

Revision tags: php-7.2.25, php-7.3.12, php-7.4.0RC6, php-7.3.12RC1, php-7.2.25RC1, php-7.4.0RC5, php-7.1.33, php-7.2.24, php-7.3.11, php-7.4.0RC4, php-7.3.11RC1, php-7.2.24RC1, php-7.4.0RC3, php-7.2.23, php-7.3.10, php-7.4.0RC2, php-7.2.23RC1, php-7.3.10RC1
# a2c21e10 05-Sep-2019 Nikita Popov

Remove --with-zlib-dir option from mysqlnd config

mysqlnd doesn't actually use this. PDO MySQL uses it, but also
declares it separately.

Revision tags: php-7.4.0RC1, php-7.1.32, php-7.2.22, php-7.3.9, php-7.4.0beta4, php-7.2.22RC1, php-7.3.9RC1, php-7.4.0beta2, php-7.1.31, php-7.2.21, php-7.3.8, php-7.4.0beta1
# 4b03e102 22-Jul-2019 Peter Kokot

Remove HAVE_DSA_DEFAULT_METHOD

Last usage removed via 6a813634052710f3f4bf6e2e03ca1b6c7be3bcee.

Closes GH-4455

Revision tags: php-7.2.21RC1, php-7.3.8RC1, php-7.4.0alpha3, php-7.3.7, php-7.2.20, php-7.4.0alpha2, php-7.3.7RC3, php-7.3.7RC2, php-7.2.20RC2, php-7.4.0alpha1, php-7.3.7RC1, php-7.2.20RC1, php-7.2.19, php-7.3.6, php-7.1.30, php-7.2.19RC1, php-7.3.6RC1
# 75fb7486 12-May-2019 Peter Kokot

Normalize comments in *nix build system m4 files

Normalization include:
- Use dnl for everything that can be ommitted when configure is built in
favor of the shell comment characte

Normalize comments in *nix build system m4 files

Normalization include:
- Use dnl for everything that can be ommitted when configure is built in
favor of the shell comment character # which is visible in the output.
- Line length normalized to 80 columns
- Dots for most of the one line sentences
- Macro definitions include similar pattern header comments now

show more ...

Revision tags: php-7.1.29, php-7.2.18, php-7.3.5, php-7.2.18RC1, php-7.3.5RC1, php-7.2.17, php-7.3.4, php-7.1.28, php-7.3.4RC1, php-7.2.17RC1, php-7.1.27, php-7.3.3, php-7.2.16
# 9df6a1e4 03-Mar-2019 Peter Kokot

Add AS_HELP_STRING to *nix build configure options

The Autoconf's default AS_HELP_STRING macro can properly format help
strings [1] so watching out if columns are aligned manually is not

Add AS_HELP_STRING to *nix build configure options

The Autoconf's default AS_HELP_STRING macro can properly format help
strings [1] so watching out if columns are aligned manually is not
anymore.

[1] https://www.gnu.org/software/autoconf/manual/autoconf.html#Pretty-Help-Strings

show more ...

Revision tags: php-7.3.3RC1, php-7.2.16RC1, php-7.2.15, php-7.3.2, php-7.2.15RC1, php-7.3.2RC1, php-5.6.40, php-7.1.26, php-7.3.1, php-7.2.14, php-7.2.14RC1, php-7.3.1RC1, php-5.6.39, php-7.1.25, php-7.2.13, php-7.0.33, php-7.3.0, php-7.1.25RC1, php-7.2.13RC1, php-7.3.0RC6, php-7.1.24, php-7.2.12, php-7.3.0RC5, php-7.1.24RC1, php-7.2.12RC1, php-7.3.0RC4, php-7.1.23, php-7.2.11, php-7.3.0RC3, php-7.1.23RC1, php-7.2.11RC1, php-7.3.0RC2, php-5.6.38, php-7.1.22, php-7.3.0RC1, php-7.2.10, php-7.0.32, php-7.1.22RC1, php-7.3.0beta3, php-7.2.10RC1, php-7.1.21, php-7.2.9, php-7.3.0beta2, php-7.1.21RC1, php-7.3.0beta1, php-7.2.9RC1, php-5.6.37, php-7.1.20, php-7.3.0alpha4, php-7.0.31, php-7.2.8, php-7.1.20RC1, php-7.2.8RC1, php-7.3.0alpha3
# 8d3f8ca1 03-Jul-2018 Peter Kokot

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

show more ...

Revision tags: php-7.3.0alpha2, php-7.1.19, php-7.2.7, php-7.1.19RC1, php-7.3.0alpha1, php-7.2.7RC1, php-7.1.18, php-7.2.6, php-7.2.6RC1, php-7.1.18RC1, php-5.6.36, php-7.2.5, php-7.1.17, php-7.0.30, php-7.1.17RC1, php-7.2.5RC1, php-5.6.35, php-7.0.29, php-7.2.4, php-7.1.16, php-7.1.16RC1, php-7.2.4RC1, php-7.1.15, php-5.6.34, php-7.2.3, php-7.0.28, php-7.2.3RC1, php-7.1.15RC1, php-7.1.14, php-7.2.2, php-7.1.14RC1, php-7.2.2RC1, php-7.1.13, php-5.6.33, php-7.2.1, php-7.0.27, php-7.2.1RC1, php-7.1.13RC1, php-7.0.27RC1, php-7.2.0, php-7.1.12, l, php-7.1.12RC1, php-7.2.0RC6, php-7.0.26RC1, php-7.1.11, php-5.6.32, php-7.2.0RC5, php-7.0.25, php-7.1.11RC1, php-7.2.0RC4, php-7.0.25RC1, php-7.1.10, php-7.2.0RC3, php-7.0.24, php-7.2.0RC2, php-7.1.10RC1, php-7.0.24RC1, php-7.1.9, php-7.2.0RC1, php-7.0.23, php-7.1.9RC1, php-7.2.0beta3, php-7.0.23RC1, php-7.1.8, php-7.2.0beta2, php-7.0.22, php-7.1.8RC1, php-7.2.0beta1, php-7.0.22RC1, php-5.6.31, php-7.0.21, php-7.1.7, php-7.2.0alpha3, php-7.1.7RC1, php-7.0.21RC1, php-7.2.0alpha2, php-7.1.6, php-7.2.0alpha1, php-7.0.20, php-7.1.6RC1, php-7.0.20RC1, php-7.1.5, php-7.0.19, php-7.0.19RC1, php-7.1.5RC1, php-7.1.4, php-7.0.18, php-7.1.4RC1, php-7.0.18RC1, php-7.1.3, php-7.0.17, php-7.1.3RC1, php-7.0.17RC1, php-7.1.2, php-7.0.16, php-7.0.16RC1, php-7.1.2RC1, php-5.6.30, php-7.0.15, php-5.6.30RC1, php-7.1.1RC1, php-7.0.15RC1, php-7.1.1, php-5.6.29, php-7.0.14, php-7.1.0, php-5.6.29RC1, php-7.0.14RC1, php-7.1.0RC6, php-5.6.28, php-7.0.13, php-5.6.28RC1, php-7.1.0RC5, php-7.0.13RC1, php-7.1.0RC4, php-5.6.27, php-7.0.12, php-7.1.0RC3, php-5.6.27RC1, php-7.0.12RC1, php-5.6.26, php-7.1.0RC2, php-7.0.11, php-5.6.26RC1, php-7.1.0RC1, php-7.0.11RC1, php-7.1.0beta3, php-5.6.25, php-7.0.10, php-7.1.0beta2, php-5.6.25RC1, php-7.0.10RC1, php-7.1.0beta1, php-5.6.24, php-7.0.9, php-5.5.38, php-5.6.24RC1, php-7.1.0alpha3, php-7.0.9RC1, php-7.1.0alpha2, php-7.0.8, php-5.6.23, php-5.5.37, php-5.6.23RC1, php-7.0.8RC1, php-7.1.0alpha1, php-5.6.22, php-5.5.36, php-7.0.7, php-5.6.22RC1, php-7.0.7RC1, php-7.0.6, php-5.6.21, php-5.5.35, php-5.6.21RC1, php-7.0.6RC1, php-5.6.20, php-5.5.34, php-7.0.5, php-5.6.20RC1, php-7.0.5RC1, php-5.6.19, php-5.5.33, php-7.0.4, php-5.6.19RC1, php-7.0.4RC1, php-5.6.18, php-7.0.3, php-5.5.32, php-5.6.18RC1, php-7.0.3RC1, php-5.6.17, php-5.5.31, php-7.0.2, php-7.0.2RC1, php-5.6.17RC1, php-7.0.1RC1, php-7.0.0, php-5.6.16, php-7.0.0RC8
# 33e97d46 17-Nov-2015 Andrey Hristov

mysqlnd refactoring:
- move MYSQLND_READ_BUFFER to own file

# abc8c000 12-Nov-2015 Andrey Hristov

MNDR:
- rename mysqlnd.c to mysqlnd_connection.c

Revision tags: php-7.0.0RC7, php-5.6.16RC1
# 42482406 10-Nov-2015 Andrey Hristov

MNDR:
- move the command factory to own file - mysqlnd_commands.c

# a530ecff 10-Nov-2015 Andrey Hristov

MNDR:
- better name for MYSQLND_PPEC - MYSQLND_PFC (protocol frame codec)

# 05c5e051 09-Nov-2015 Andrey Hristov

MNDR:
- moved networking code to mysqlnd_vio.c

Revision tags: php-5.6.15, php-7.0.0RC6, php-7.0.1, php-5.6.15RC1, php-7.0.0RC5, php-5.5.30, php-5.6.14, php-7.0.0RC4, php-5.6.14RC1, php-7.0.0RC3, php-5.6.13, php-7.0.0RC2, php-5.5.29, php-5.4.45, php-5.6.13RC1, php-7.0.0RC1, php-5.6.12, php-5.5.28, php-7.0.0beta3, php-5.4.44, php-5.6.12RC1, php-7.0.0beta2, php-7.0.0beta1, php-5.6.11, php-5.5.27, php-5.4.43, php-5.6.11RC1, php-5.5.27RC1, php-7.0.0alpha2, php-5.5.26, php-7.0.0alpha1, php-5.6.10, php-5.4.42, POST_PHP7_NSAPI_REMOVAL, PRE_PHP7_NSAPI_REMOVAL, php-5.6.10RC1, php-5.5.26RC1, php-5.5.25, php-5.6.9, php-5.4.41, php-5.6.9RC1, php-5.5.25RC1, php-5.6.8, php-5.5.24, php-5.4.40, php-5.6.8RC1, php-5.5.24RC1, php-5.6.7, php-5.5.23, php-5.4.39, php-5.6.7RC1, php-5.5.23RC1, POST_PHP7_EREG_MYSQL_REMOVALS, PRE_PHP7_EREG_MYSQL_REMOVALS, php-5.6.6, php-5.5.22, php-5.4.38, POST_PHP7_REMOVALS, PRE_PHP7_REMOVALS, php-5.6.6RC1, php-5.5.22RC1, php-5.5.21, php-5.6.5, php-5.4.37
# 961da408 07-Jan-2015 Keyur Govande

Merge branch 'PHP-5.6'

* PHP-5.6:
Add NEWS
Add NEWS
Patch commit d9f85373e32 by moving the float_to_double function to a header file.
Fix for bugs #68114 (Build fails

Merge branch 'PHP-5.6'

* PHP-5.6:
Add NEWS
Add NEWS
Patch commit d9f85373e32 by moving the float_to_double function to a header file.
Fix for bugs #68114 (Build fails on OS X due to undefined symbols) and #68657 (Reading 4 byte floats with Mysqli and libmysqlclient has rounding errors).
5.5.22 now

Conflicts:
ext/mysqli/mysqli_api.c

show more ...


# 90144c0d 07-Jan-2015 Keyur Govande

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Add NEWS
Patch commit d9f85373e32 by moving the float_to_double function to a header file.
Fix for bugs #68114 (Build fails o

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Add NEWS
Patch commit d9f85373e32 by moving the float_to_double function to a header file.
Fix for bugs #68114 (Build fails on OS X due to undefined symbols) and #68657 (Reading 4 byte floats with Mysqli and libmysqlclient has rounding errors).
5.5.22 now

Conflicts:
configure.in
main/php_version.h

show more ...


Revision tags: php-5.5.21RC1, php-5.6.5RC1
# f2eadb93 06-Jan-2015 Keyur Govande

Fix for bugs #68114 (Build fails on OS X due to undefined symbols)
and #68657 (Reading 4 byte floats with Mysqli and libmysqlclient
has rounding errors).

The patch removes support fo

Fix for bugs #68114 (Build fails on OS X due to undefined symbols)
and #68657 (Reading 4 byte floats with Mysqli and libmysqlclient
has rounding errors).

The patch removes support for Decimal floating point numbers and
now defaults to using similar logic as what libmysqlclient does:
convert a 4 byte floating point number into a string, and then the
string into a double. The quirks of MySQL are maintained as seen in
Field_Float::val_str()

show more ...

Revision tags: POST_NATIVE_TLS_MERGE, PRE_NATIVE_TLS_MERGE, php-5.5.20, php-5.4.36, php-5.6.4, php-5.6.4RC1, php-5.5.20RC1, php-5.6.3, php-5.5.19, php-5.4.35, php-5.6.3RC1, php-5.5.19RC1, php-5.5.18
# 98a8481e 15-Oct-2014 Anatol Belski

converted some ext/mysql* and fixed ext/zlib

Revision tags: php-5.4.34
# 07e285d8 07-Oct-2014 Keyur Govande

Merge branch 'PHP-5.6'

* PHP-5.6:
Add to NEWS
Fix for bug #68114 (Build fails on OS X due to undefined symbols)


# bcda6c93 07-Oct-2014 Keyur Govande

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Add to NEWS
Fix for bug #68114 (Build fails on OS X due to undefined symbols)


# 648673bf 07-Oct-2014 Keyur Govande

Fix for bug #68114 (Build fails on OS X due to undefined symbols)

gcc (i686-apple-darwin10-gcc-4.2.1) on OS X cannot link fixed-width
decimals and fails with undefined symbols errors lik

Fix for bug #68114 (Build fails on OS X due to undefined symbols)

gcc (i686-apple-darwin10-gcc-4.2.1) on OS X cannot link fixed-width
decimals and fails with undefined symbols errors like ___extendsddf.
If configure used gcc for compiling it would notice and mark the
feature HAVE_DECIMAL_FP_SUPPORT as unsupported.
But configure seems to use cc (i686-apple-darwin10-llvm-gcc-4.2)
instead, which doesn't support fixed-width decimals either, but the
code compiles and links just fine. I suspect it may have something
to do with the llvm backend printed in the version.
Lacking the time to debug this further, the patch fixes the issue by
checking the expected output when fixed-width decimal support is
present and correctly implemented.

show more ...

Revision tags: php-5.5.18RC1, php-5.6.1, php-5.6.2, php-5.4.33, php-5.5.17, php-5.6.1RC1, php-5.5.17RC1, php-5.4.33RC1, php-5.6.0, POST_AST_MERGE, PRE_AST_MERGE, POST_64BIT_BRANCH_MERGE, PRE_64BIT_BRANCH_MERGE, php-5.5.16, php-5.4.32
# 603e3ddf 15-Aug-2014 Keyur Govande

Merge branch 'PHP-5.6'

* PHP-5.6:
Update NEWS
Fix another failing test
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-byte floats cor

Merge branch 'PHP-5.6'

* PHP-5.6:
Update NEWS
Fix another failing test
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

show more ...


# 032dee49 15-Aug-2014 Keyur Govande

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Update NEWS
Fix another failing test
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-by

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Update NEWS
Fix another failing test
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

Conflicts:
ext/mysqli/tests/mysqli_change_user.phpt

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# 7c4b5d91 15-Aug-2014 Keyur Govande

Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

Conflicts:

Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
Add NEWS
Fix failing tests
Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

Conflicts:
ext/mysqli/tests/table.inc

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Revision tags: POST_PHPNG_MERGE, PRE_PHPNG_MERGE
# c044164a 14-Aug-2014 Keyur Govande

Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

Before the patch, a value of 9.99 in a FLOAT column came out of mysqli
as 9.9998998641968. This is because it would

Patch for bug #67839 (mysqli does not handle 4-byte floats correctly)

Before the patch, a value of 9.99 in a FLOAT column came out of mysqli
as 9.9998998641968. This is because it would naively cast a 4-byte float
into PHP's internal 8-byte double.
To fix this, with GCC we use the built-in decimal support to "up-convert"
the 4-byte float to a 8-byte double.
When that is not available, we fall back to converting the float
to a string and then converting the string to a double. This mimics
what MySQL does.

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