Collation Locales and Default Parameters排序规则区域设置和默认参数
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Collation排序规则 allows users to specify language-specific rules for string comparison, such as rules for lettercase and accent marks.允许用户为字符串比较指定特定于语言的规则,例如字母大小写和重音标记的规则。
Behavior行为
Some collation locales have variants, which employ special language-specific rules. 一些排序规则区域设置具有变体,这些变体使用特定于语言的特殊规则。To specify a locale variant, use the following syntax:要指定区域设置变体,请使用以下语法:
{ "locale" : "<locale code>@collation=<variant>" }
For example, to use the 例如,要使用汉语排序规则的unihan
variant of the Chinese collation:unihan
变体:
{ "locale" : "zh@collation=unihan" }
See the collation page for a full description of collation behavior and syntax.有关排序规则行为和语法的完整描述,请参阅。
Supported Languages and Locales支持的语言和区域设置
MongoDB's collation feature supports the following languages. MongoDB的排序规则功能支持以下语言。The following table lists the supported languages and the associated locales as defined by ICU Locale ID下表列出了受支持的语言以及ICU区域设置ID.
定义的相关区域设置。[1]
|
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To explicitly specify simple binary comparison, specify 若要显式指定简单二进制比较,请指定locale
value of "simple"
.locale
值"simple"
。
[1] | |
Collation Default Parameters排序规则默认参数
A collation document contains several optional parameters in addition to the required 排序规则文档除了包含必需的locale
parameter. locale
参数外,还包含几个可选参数。Depending on which 根据您使用的locale
you use, the default parameters may be different. locale
,默认参数可能会有所不同。See the collation page for a full description of collation syntax.有关排序规则语法的完整描述,请参阅排序规则页面。
The following default parameters are consistent across all locales:以下默认参数在所有区域设置中都是一致的:
caseLevel : false
strength : 3
numericOrdering : false
maxVariable : punct
The following table shows the default collation parameters which may vary across different locales:下表显示了默认排序规则参数,这些参数可能因不同的区域设置而异:
caseFirst | alternate | |||
---|---|---|---|---|
af | off | non-ignorable | FALSE | FALSE |
sq | off | non-ignorable | FALSE | FALSE |
am | off | non-ignorable | FALSE | FALSE |
ar | off | non-ignorable | FALSE | FALSE |
ar@collation=compat | off | non-ignorable | FALSE | FALSE |
hy | off | non-ignorable | FALSE | FALSE |
as | off | non-ignorable | TRUE | FALSE |
az | off | non-ignorable | FALSE | FALSE |
az@collation=search | off | non-ignorable | TRUE | FALSE |
be | off | non-ignorable | FALSE | FALSE |
bn | off | non-ignorable | TRUE | FALSE |
bn@collation=traditional | off | non-ignorable | TRUE | FALSE |
bs | off | non-ignorable | FALSE | FALSE |
bs@collation=search | off | non-ignorable | TRUE | FALSE |
bs_Cyrl | off | non-ignorable | FALSE | FALSE |
bg | off | non-ignorable | FALSE | FALSE |
my | off | non-ignorable | TRUE | FALSE |
ca | off | non-ignorable | FALSE | FALSE |
ca@collation=search | off | non-ignorable | TRUE | FALSE |
chr | off | non-ignorable | FALSE | FALSE |
zh | off | non-ignorable | FALSE | FALSE |
zh@collation=big5han | off | non-ignorable | FALSE | FALSE |
zh@collation=gb2312han | off | non-ignorable | FALSE | FALSE |
zh@collation=unihan | off | non-ignorable | FALSE | FALSE |
zh@collation=zhuyin | off | non-ignorable | FALSE | FALSE |
zh_Hant | off | non-ignorable | FALSE | FALSE |
hr | off | non-ignorable | FALSE | FALSE |
hr@collation=search | off | non-ignorable | TRUE | FALSE |
cs | off | non-ignorable | FALSE | FALSE |
cs@collation=search | off | non-ignorable | TRUE | FALSE |
da | upper | non-ignorable | FALSE | FALSE |
da@collation=search | off | non-ignorable | TRUE | FALSE |
nl | off | non-ignorable | FALSE | FALSE |
dz | off | non-ignorable | FALSE | FALSE |
en | off | non-ignorable | FALSE | FALSE |
en_US_POSIX | off | non-ignorable | FALSE | FALSE |
en_US | off | non-ignorable | FALSE | FALSE |
eo | off | non-ignorable | FALSE | FALSE |
et | off | non-ignorable | FALSE | FALSE |
ee | off | non-ignorable | FALSE | FALSE |
fo | off | non-ignorable | FALSE | FALSE |
fo@collation=search | off | non-ignorable | TRUE | FALSE |
fil | off | non-ignorable | FALSE | FALSE |
fi | off | non-ignorable | FALSE | FALSE |
fi@collation=search | off | non-ignorable | TRUE | FALSE |
fi@collation=traditional | off | non-ignorable | FALSE | FALSE |
fr | off | non-ignorable | FALSE | FALSE |
fr_CA | off | non-ignorable | FALSE | TRUE |
gl | off | non-ignorable | FALSE | FALSE |
gl@collation=search | off | non-ignorable | TRUE | FALSE |
ka | off | non-ignorable | FALSE | FALSE |
de | off | non-ignorable | FALSE | FALSE |
de@collation=search | off | non-ignorable | TRUE | FALSE |
de@collation=phonebook | off | non-ignorable | FALSE | FALSE |
de@collation=eor | off | non-ignorable | FALSE | FALSE |
de_AT | off | non-ignorable | FALSE | FALSE |
de_AT@collation=phonebook | off | non-ignorable | FALSE | FALSE |
el | off | non-ignorable | TRUE | FALSE |
gu | off | non-ignorable | TRUE | FALSE |
ha | off | non-ignorable | FALSE | FALSE |
haw | off | non-ignorable | FALSE | FALSE |
he | off | non-ignorable | TRUE | FALSE |
he@collation=search | off | non-ignorable | TRUE | FALSE |
hi | off | non-ignorable | TRUE | FALSE |
hu | off | non-ignorable | FALSE | FALSE |
is | off | non-ignorable | FALSE | FALSE |
is@collation=search | off | non-ignorable | TRUE | FALSE |
ig | off | non-ignorable | TRUE | FALSE |
smn | off | non-ignorable | FALSE | FALSE |
smn@collation=search | off | non-ignorable | TRUE | FALSE |
id | off | non-ignorable | FALSE | FALSE |
ga | off | non-ignorable | FALSE | FALSE |
it | off | non-ignorable | FALSE | FALSE |
ja | off | non-ignorable | FALSE | FALSE |
ja@collation=unihan | off | non-ignorable | FALSE | FALSE |
kl | off | non-ignorable | FALSE | FALSE |
kl@collation=search | off | non-ignorable | TRUE | FALSE |
kn | off | non-ignorable | TRUE | FALSE |
kn@collation=traditional | off | non-ignorable | TRUE | FALSE |
kk | off | non-ignorable | FALSE | FALSE |
km | off | non-ignorable | TRUE | FALSE |
kok | off | non-ignorable | TRUE | FALSE |
ko | off | non-ignorable | FALSE | FALSE |
ko@collation=search | off | non-ignorable | TRUE | FALSE |
ko@collation=searchjl | off | non-ignorable | TRUE | FALSE |
ko@collation=unihan | off | non-ignorable | FALSE | FALSE |
ky | off | non-ignorable | FALSE | FALSE |
lkt | off | non-ignorable | FALSE | FALSE |
lo | off | non-ignorable | FALSE | FALSE |
lv | off | non-ignorable | FALSE | FALSE |
ln | off | non-ignorable | FALSE | FALSE |
ln@collation=phonetic | off | non-ignorable | FALSE | FALSE |
lt | off | non-ignorable | FALSE | FALSE |
dsb | off | non-ignorable | FALSE | FALSE |
lb | off | non-ignorable | FALSE | FALSE |
mk | off | non-ignorable | FALSE | FALSE |
ms | off | non-ignorable | FALSE | FALSE |
ml | off | non-ignorable | FALSE | FALSE |
mt | upper | non-ignorable | FALSE | FALSE |
mr | off | non-ignorable | TRUE | FALSE |
mn | off | non-ignorable | FALSE | FALSE |
ne | off | non-ignorable | FALSE | FALSE |
se | off | non-ignorable | FALSE | FALSE |
se@collation=search | off | non-ignorable | TRUE | FALSE |
nb | off | non-ignorable | FALSE | FALSE |
nb@collation=search | off | non-ignorable | TRUE | FALSE |
nn | off | non-ignorable | FALSE | FALSE |
nn@collation=search | off | non-ignorable | TRUE | FALSE |
or | off | non-ignorable | TRUE | FALSE |
om | off | non-ignorable | FALSE | FALSE |
ps | off | non-ignorable | TRUE | FALSE |
fa | off | non-ignorable | TRUE | FALSE |
fa_AF | off | non-ignorable | TRUE | FALSE |
pl | off | non-ignorable | FALSE | FALSE |
pt | off | non-ignorable | FALSE | FALSE |
pa | off | non-ignorable | TRUE | FALSE |
ro | off | non-ignorable | FALSE | FALSE |
ru | off | non-ignorable | FALSE | FALSE |
sr | off | non-ignorable | FALSE | FALSE |
sr_Latn | off | non-ignorable | FALSE | FALSE |
sr_Latn@collation=search | off | non-ignorable | TRUE | FALSE |
si | off | non-ignorable | TRUE | FALSE |
si@collation=dictionary | off | non-ignorable | TRUE | FALSE |
sk | off | non-ignorable | FALSE | FALSE |
sk@collation=search | off | non-ignorable | TRUE | FALSE |
sl | off | non-ignorable | FALSE | FALSE |
es | off | non-ignorable | FALSE | FALSE |
es@collation=search | off | non-ignorable | TRUE | FALSE |
es@collation=traditional | off | non-ignorable | FALSE | FALSE |
sw | off | non-ignorable | FALSE | FALSE |
sv | off | non-ignorable | FALSE | FALSE |
sv@collation=search | off | non-ignorable | TRUE | FALSE |
ta | off | non-ignorable | TRUE | FALSE |
te | off | non-ignorable | TRUE | FALSE |
th | off | shifted | TRUE | FALSE |
bo | off | non-ignorable | FALSE | FALSE |
to | off | non-ignorable | FALSE | FALSE |
tr | off | non-ignorable | FALSE | FALSE |
tr@collation=search | off | non-ignorable | TRUE | FALSE |
uk | off | non-ignorable | FALSE | FALSE |
hsb | off | non-ignorable | FALSE | FALSE |
ur | off | non-ignorable | FALSE | FALSE |
ug | off | non-ignorable | FALSE | FALSE |
vi | off | non-ignorable | TRUE | FALSE |
vi@collation=traditional | off | non-ignorable | TRUE | FALSE |
wae | off | non-ignorable | FALSE | FALSE |
cy | off | non-ignorable | FALSE | FALSE |
yi | off | non-ignorable | TRUE | FALSE |
yi@collation=search | off | non-ignorable | TRUE | FALSE |
yo | off | non-ignorable | TRUE | FALSE |
zu | off | non-ignorable | FALSE | FALSE |