Issue with Spanish Text Index stemming

[Ruben Gonzalez]

Hi group

NOTE: Using a text index, the process of deleting some letters at the end is a language-specific feature called "stemming".

Why using a Text Index in Spanish the stemming of "filología" is "filolog" and the stemming of "filologia" (without accent mark) is "filologi"?

Words ending in -ía are very common in Spanish and searching without accent marks in very common too.



> db.Series.find({ "$text": { "$search": 'filologia clásica', "$language": "es" } }, {indexlanguage: 1}).explain("executionStats") 

... 

"terms" : [ "filologi", "clasic" ], 

... 

 > db.Series.find({ "$text": { "$search": 'filología clásica', "$language": "es" } }, {indexlanguage: 1}).explain("executionStats") 

... 

"terms" : [ "filolog", "clasic" ],

... 

Is it a bug in the stemming process or in my Text Index configuration?:

> db.User.getIndexes()

[

    {

        "v" : 1,

        "key" : {

            "_fts" : "text",

            "_ftsx" : 1

        },

        "name" : "$**_text",

        "ns" : "test.User",

        "weights" : {

            "$**" : 1

        },

        "default_language" : "english",

        "language_override" : "language",

        "textIndexVersion" : 3

    }

]

Thank you.

[Ruben Gonzalez]

Sorry. This mail duplicates https://groups.google.com/forum/#!msg/mongodb-user/yEnD21E_9q0/WoIR7-jtAAAJ