排序规则区域设置和默认参数
在此页面上
排序规则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符号规则。
行为
某些排序规则语言环境会有一些变体,这些变体采用特定于语言的特殊规则。若要指定语言环境变体,请使用以下语法:
{ "locale" : "<locale code>@collation=<variant>" }
例如,如要使用中文排序规则的unihan
变体:
{ "locale" : "zh@collation=unihan" }
有关排序规则行为和语法的完整说明,请参阅排序规则页面。
支持的语言和区域设置
MongoDB 排序规则功能支持以下语言。下表列出了由 ICU 区域设置 ID 定义的支持语言和相关本地语言。[1]
|
|
提示
要明确指定简单的二进制比较,请将 locale
的值指定为 "simple"
。
[1] | 要请求对区域设置的支持,请向服务器项目提交 JIRA 工单 |
排序规则默认参数
排序规则文档包含多个可选参数以及必填的 locale
参数。根据您使用的 locale
,默认参数可能会有所不同。请参阅排序规则页面,获取排序规则语法的完整说明。
以下默认参数对于所有区域设置都是一致的:
caseLevel : false
strength : 3
numericOrdering : false
maxVariable : punct
下表显示默认排序规则参数,这些参数可能因区域设置而异:
locale | caseFirst | 替代方案 | normalization | backwards |
---|---|---|---|---|
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 |