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ccb1183887
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. |
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