PHP 中 Elasticsearch 实现数据去重与去噪的技术思路

use ElasticsearchClientBuilder;

$client = ClientBuilder::create()->build();

$params = [
    'index' => 'deduplicate_index',
    'body' => [
        'settings' => [
            'number_of_shards' => 1,
            'number_of_replicas' => 0
        ]
    ]
];

$response = $client->indices()->create($params);

$params = [
    'index' => 'deduplicate_index',
    'body' => [
        'data' => [
            ['field1' => 'value1', 'field2' => 'value2'],
            ['field1' => 'value3', 'field2' => 'value4'],
            // ...
        ]
    ]
];

$response = $client->index($params);

$params = [
    'index' => 'deduplicate_index',
    'body' => [
        'script' => [
            'source' => 'ctx._source.duplicate = true;',
            'lang' => 'painless'
        ],
        'query' => [
            'match_all' => []
        ]
    ]
];

$response = $client->updateByQuery($params);

$params = [
    'index' => 'deduplicate_index',
    'body' => [
        'query' => [
            'term' => [
                'duplicate' => true
            ]
        ]
    ]
];

$response = $client->deleteByQuery($params);

$params = [
    'index' => 'deduplicate_index',
    'body' => [
        'query' => [
            'match' => [
                'field1' => 'value_to_keep'
            ]
        ]
    ]
];

$response = $client->deleteByQuery($params);