Some collations--including cp1250_czech_cs,latin2_czech_cs,
ucs2/utf8_czech_ci, ucs2/utf8_danish_ci--are not being
sorted correctly by the IBMDB2I storage engine. This
was being caused because the sort order used by DB2 is
incompatible with the order expected by MySQL.
This patch removes support for the cp1250_czech_cs and
latin2_czech_cs collations because it has been determined
that the sort order used by DB2 is incompatible with the
order expected by MySQL. Users needing a czech collation
with IBMDB2I are encouraged to use a Unicode-based collation
instead of these single-byte collations. This patch also
modifies the DB2 sort sequence used for ucs2/utf8_czech_ci
and ucs2/utf8_danish_ci collations to better match the
sorting expected by MySQL. This will only affect indexes
or tables that are newly created through the IBMDB2I storage
engine. Existing IBMDB2I tables will retain the old sort
sequence until recreated.
mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_45196.result:
Bug#45196 Some collations do not sort correctly with IBMDB2I
Result file for the test case.
mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_45196.test:
Bug#45196 Some collations do not sort correctly with IBMDB2I
Adding tests for testing the sort order with the modified collations.
storage/ibmdb2i/db2i_collationSupport.cc:
Bug#45196 Some collations do not sort correctly with IBMDB2I
Remove the support for the cp1250_czech_cs and latin2_czech_cs
collations because it has been determined that the sort order
used by DB2 is incompatible with the order expected by MySQL.
Users needing a czech collation with IBMDB2I are encouraged to
use a Unicode-based collation instead of these single-byte
collations. This patch also modifies the DB2 sort sequence
used for ucs2/utf8_czech_ci and ucs2/utf8_danish_ci collations
to better match the sorting expected by MySQL. This will only
affect indexes or tables that are newly created through the
IBMDB2I storage engine. Existing IBMDB2I tables will retain
the old sort sequence until recreated.
The utf8_swedish_ci and ucs2_swedish_ci
collations do not work with indexes on
IBMDB2I tables.
The current patch adds the mapping for
ucs2_swedish collation and removes the
ucs2_spanish2 mapping which is not
supported by any version of the operating
system.
storage/ibmdb2i/db2i_collationSupport.cc:
Removed mapping for ucs2_spanish2 collation
since it is not supported by any version of the operating system. Added mapping for ucs2_swedish
collation which had been overlooked but is
supported by the IBM i 6.1.
Modify plugins.m4 configuration framework so that plugins which are
not built still get added to the source distribution during make dist.
This came up now because we can only build ibmdb2i on i5/OS, and we
can't bootstrap our source dist on that platform. The solution is to
specify DIST_SUBDIRS containing all plugins, separate from SUBDIRS
which contains the plugins which are actually built.
This ibmdb2i code is from the ibmdb2i-ga3-src.zip file, with a patch
to plug.in to disable the plugin if the PASE environment isn't available.
