Let's search in the content field of the documents that we have for the e-mail address <[email protected]>:
{
"query" : {
"match" : {
"content" : "[email protected]"
}
}
}Incidentally, Document 1 and Document 2 matched our query rather than just Document 1.
Let's see why this happened and how:
By default, the standard analyzer is taken as the default analyzer
The standard analyzer breaks
<[email protected]>into malhotra and gmail.comThe standard analyzer also breaks the e-mail ID
<[email protected]>into buygroceries and gmail.comThis means that when we search for the e-mail ID
<[email protected]>, either malhotra or gmail.com needs to match for the document to be qualified as a result
Hence, both Document 1 and Document 2 matched our query rather than just Document 1.
The solution for this problem is to use the UAX Email URL tokenizer rather than the default tokenizer. This tokenizer preserves...