mongoDB limit the number of entries scanned - mysql

Question

I'm trying mongoDB and I need translate this following SQL query.
SELECT * FROM infos_cli
WHERE MATCH(denomination) AGAINST('cafe')
WHERE code_postal LIKE '34%'
My full text index definition:
db.infos_cli.createIndex(
{ "code_postal": 1,
"denomination": "text"
},
{default_language: "french"},
{name: "indexSerch"}
)
And my query in mongoDb:
db.infos_cli.find({code_postal : /34/, $text: {$search: "cafe"}})
But it's not working.
Can anyone explain how I've to do ?

Answer 1

In this case please create separate index for postal field and for text search
db.articles.createIndex({ author : 1}) //postal... in your case
db.articles.createIndex({
"denomination" : "text"
}, {
default_language : "french"
}, {
name : "indexSerch"
})
my query
db.getCollection('articles').find({
$text : {
$search : "coffee",
$language : "french"
}
}).explain()
Result shows that there is TEXT phase and IXSCAN which is desired!
result from explain:
{
"queryPlanner" : {
"plannerVersion" : 1,
"namespace" : "testCode.articles",
"indexFilterSet" : false,
"parsedQuery" : {
"$text" : {
"$search" : "coffee",
"$language" : "french",
"$caseSensitive" : false,
"$diacriticSensitive" : false
}
},
"winningPlan" : {
"stage" : "TEXT",
"indexPrefix" : {},
"indexName" : "denomination_text",
"parsedTextQuery" : {
"terms" : [
"coffe"
],
"negatedTerms" : [],
"phrases" : [],
"negatedPhrases" : []
},
"inputStage" : {
"stage" : "TEXT_MATCH",
"inputStage" : {
"stage" : "TEXT_OR",
"inputStage" : {
"stage" : "IXSCAN",
"keyPattern" : {
"_fts" : "text",
"_ftsx" : 1
},
"indexName" : "denomination_text",
"isMultiKey" : false,
"isUnique" : false,
"isSparse" : false,
"isPartial" : false,
"indexVersion" : 1,
"direction" : "backward",
"indexBounds" : {}
}
}
}
},
"rejectedPlans" : []
},
"serverInfo" : {
"host" : "gbernas3-lt",
"port" : 27017,
"version" : "3.2.0",
"gitVersion" : "45d947729a0315accb6d4f15a6b06be6d9c19fe7"
},
"ok" : 1
}
any comments welcome!