Configuring built-in analyzers
The built-in analyzers can be used directly without any configuration. Some
of them, however, support configuration options to alter their behaviour. For
instance, the standard analyzer can be configured
to support a list of stop words:
PUT my_index
{
"settings": {
"analysis": {
"analyzer": {
"std_english": { 
"type": "standard",
"stopwords": "_english_"
}
}
}
},
"mappings": {
"properties": {
"my_text": {
"type": "text",
"analyzer": "standard", 
"fields": {
"english": {
"type": "text",
"analyzer": "std_english" 
}
}
}
}
}
}
POST my_index/_analyze
{
"field": "my_text", 
"text": "The old brown cow"
}
POST my_index/_analyze
{
"field": "my_text.english", 
"text": "The old brown cow"
} |
We define the std_english analyzer to be based on the standard
analyzer, but configured to remove the pre-defined list of English stopwords.
|
|
The my_text field uses the standard analyzer directly, without
any configuration. No stop words will be removed from this field.
The resulting terms are: [ the, old, brown, cow ]
|
|
The my_text.english field uses the std_english analyzer, so
English stop words will be removed. The resulting terms are:
[ old, brown, cow ]
|