How to convert MySQL search criteria to Elasticsearch query - php

Question

I am trying to convert MySQL search criteria to Eleasticsearch (version 7) query, however, both queries (MySQL and Elasticsearch) gives different results. On the SQL statement, it shows a single record, and on Elasticsearch, it shows 0 records. Any help or guidance is much appreciated on this.
SQL criteria
COUNT(*) WHERE (document_title like '%never listened%' or document_content like '%never listened%') and documnent_tone = 'negative'
Converting to Elasticsearch - using PHP Elasticsearch library
use Elasticsearch\ClientBuilder;
...
$elasticServer = $this->getOption('elasticsearch')->getElasticServer1();
$hosts = array(
$elasticServer['host'] . ':' . $elasticServer['port']
);
$client = ClientBuilder::create()
->setHosts($hosts)
->build();
$params = array (
"index" => "index_politics",
"body" => array(
"query" => array(
"bool" => array(
"must" => array(
array(
"wildcard" => array(
"document_title" => "never listened",
)
),
array(
"wildcard" => array(
"document_content" => "never listened"
)
),
array(
"match" => array(
"document_tone" => "negative"
)
)
)
)
)
)
);
$response = $client->count($params);
$negative = $response['count'];
var_dump($negative);

Answer 1

After much digging, the following worked for me
use Elasticsearch\ClientBuilder;
...
$elasticServer = $this->getOption('elasticsearch')->getElasticServer1();
$hosts = array(
$elasticServer['host'] . ':' . $elasticServer['port']
);
$client = ClientBuilder::create()
->setHosts($hosts)
->build();
$params = array (
"index" => "index_politics",
"body" => array(
"query" => array(
"bool" => array(
"must" => array(
array(
"multi_match" => array(
"query" => "never listened",
"fields" => array("document_title", "document_content")
)
)
),
"filter" => array(
"term" => array(
"document_tone" => "negative"
)
)
)
)
)
);
$response = $client->count($params);
$negative = $response['count'];
var_dump($negative);
Converted to Elasticsearch query
GET /index_politics/_count
{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "never listened",
"fields": [
"document_title",
"document_content"
]
}
}
],
"filter": {
"term": {
"document_tone": "negative"
}
}
}
}
}