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Code Issues

Fixed CORE-1802 - Maximum key size using PXW_CSY collation

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asfernandes 2008-05-17 18:18:17 +00:00
parent 7bc95f13fc
commit ff80913a1b
1 changed files with 24 additions and 26 deletions
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50
src/intl/lc_narrow.cpp
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@ -105,36 +105,34 @@ USHORT LC_NARROW_key_length(texttype* obj, USHORT inLen)
{ {
BYTE bytesPerChar = 3; BYTE bytesPerChar = 3;
// if collation is not multi-level, the weights used is already know // scan the table to identify what weights are used
bool useSecondary = false;
bool useTertiary = false;
for (int ch = 0; ch <= 255; ++ch)
{
const SortOrderTblEntry* coll =
&((const SortOrderTblEntry*)obj->texttype_impl->texttype_collation_table)[ch];
if (coll->Secondary != NULL_SECONDARY)
useSecondary = true;
if (coll->Tertiary != NULL_TERTIARY)
useTertiary = true;
}
if (!useSecondary)
--bytesPerChar;
if (!useTertiary)
--bytesPerChar;
if (obj->texttype_impl->texttype_flags & TEXTTYPE_non_multi_level) if (obj->texttype_impl->texttype_flags & TEXTTYPE_non_multi_level)
{ {
if (obj->texttype_impl->texttype_flags & TEXTTYPE_secondary_insensitive) if (useSecondary && (obj->texttype_impl->texttype_flags & TEXTTYPE_secondary_insensitive))
--bytesPerChar; --bytesPerChar;
if (obj->texttype_impl->texttype_flags & TEXTTYPE_tertiary_insensitive) if (useTertiary && (obj->texttype_impl->texttype_flags & TEXTTYPE_tertiary_insensitive))
--bytesPerChar;
}
else // scan the table to identify what weights are used
{
bool useSecondary = false;
bool useTertiary = false;
for (int ch = 0; ch <= 255; ++ch)
{
const SortOrderTblEntry* coll =
&((const SortOrderTblEntry*)obj->texttype_impl->texttype_collation_table)[ch];
if (coll->Secondary != NULL_SECONDARY)
useSecondary = true;
if (coll->Tertiary != NULL_TERTIARY)
useTertiary = true;
}
if (!useSecondary)
--bytesPerChar;
if (!useTertiary)
--bytesPerChar; --bytesPerChar;
} }