Question

我正在使用php的客户端库进行弹性搜索。我想创建一个索引一个人的id和他的name的索引，并允许用户以非常灵活的方式搜索名称（不区分大小写，搜索部分名称等等< / p>

这是我到目前为止的代码片段，为方便起见注释

<?php

require_once(__DIR__ . '/../init.php');

$client = new Elasticsearch\Client();
$params = [
    'index' => 'person',
    'body' => [
        'settings' => [
            // Simple setings for now, single shard
            'number_of_shards' => 1,
            'number_of_replicas' => 0,
            'analysis' => [
                'filter' => [
                    'shingle' => [
                        'type' => 'shingle'
                    ]
                ],
                'analyzer' => [
                    'my_ngram_analyzer' => [
                        'tokenizer' => 'my_ngram_tokenizer',
                    ]
                ],
                // Allow searching for partial names with nGram
                'tokenizer' => [
                    'my_ngram_tokenizer' => [
                        'type' => 'nGram',
                        'min_gram' => 1,
                        'max_gram' => 15,
                        'token_chars' => ['letter', 'digit']
                    ]
                ]
            ]
        ],
        'mappings' => [
            '_default_' => [
                'properties' => [
                    'person_id' => [
                        'type' => 'string',
                        'index' => 'not_analyzed',
                    ],
                    // The name of the person
                    'value' => [
                        'type' => 'string',
                        'analyzer' => 'my_ngram_analyzer',
                        'term_vector' => 'yes',
                        'copy_to' => 'combined'
                    ],
                ]
            ],
        ]
    ]
];

// Create index `person` with ngram indexing
$client->indices()->create($params);

// Index a single person using this indexing scheme
$params = array();
$params['body']  = array('person_id' => '1234', 'value' => 'Johnny Appleseed');
$params['index'] = 'person';
$params['type']  = 'type';
$params['id']    = 'id';
$ret = $client->index($params);

// Get that document (to prove it's in there)
$getParams = array();
$getParams['index'] = 'person';
$getParams['type']  = 'type';
$getParams['id']    = 'id';
$retDoc = $client->get($getParams);
print_r($retDoc); // success


// Search for that document
$searchParams['index'] = 'person';
$searchParams['type']  = 'type';
$searchParams['body']['query']['match']['value'] = 'J';
$queryResponse = $client->search($searchParams);
print_r($queryResponse); // FAILURE

// blow away index so that we can run the script again immediately
$deleteParams = array();
$deleteParams['index'] = 'person';
$retDelete = $client->indices()->delete($deleteParams);

我有时会使用此搜索功能，但我一直在忙于脚本以使不区分大小写的功能按预期工作，并且在此过程中，脚本现在无法找到任何{{1 }}或J用作要匹配的查询值。

任何想法可能会在这里发生什么？

Answer 1

要修复不区分大小写的位，我添加了

'filter' => 'lowercase',

到我的ngram分析仪。

此外，它之所以未能开始，是因为在使用php的客户端库时，您无法创建索引，然后在同一个脚本中搜索它。我的猜测是异步正在进行中。因此，在一个脚本中创建索引并在另一个脚本中搜索它，它应该可以工作。

如何搜索弹性搜索不区分大小写

1 个答案: