Collection::createIndex

(No version information available, might only be in Git)

Collection::createIndex — Create collection index

说明

public mysql_xdevapi\Collection::createIndex(string $index_name, string $index_desc_json): void

Creates an index on the collection.

An exception is thrown if an index with the same name already exists, or if index definition is not correctly formed.

参数

index_name

The name of the index that to create. This name must be a valid index name as accepted by the CREATE INDEX SQL query.

index_desc_json

Definition of the index to create. It contains an array of IndexField objects, and each object describes a single document member to include in the index, and an optional string for the type of index that might be INDEX (default) or SPATIAL.

A single IndexField description consists of the following fields:

field: string, the full document path to the document member or field to be indexed.
type: string, one of the supported SQL column types to map the field into. For numeric types, the optional UNSIGNED keyword may follow. For the TEXT type, the length to consider for indexing may be added.
required: bool, (optional) true if the field is required to exist in the document. Defaults to false, except for GEOJSON where it defaults to true.
options: integer, (optional) special option flags for use when decoding GEOJSON data.
srid: integer, (optional) srid value for use when decoding GEOJSON data.

It is an error to include other fields not described above in IndexDefinition or IndexField documents.

返回值

范例

示例 #1 mysql_xdevapi\Collection::createIndex() example


<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();

$schema     = $session->getSchema("addressbook");
$collection = $schema->createCollection("people");

// Creating a text index
$collection->createIndex(
  'myindex1', 
  '{"fields": [{
    "field": "$.name", 
    "type": "TEXT(25)", 
    "required": true}], 
    "unique": false}'
);

// A spatial index
$collection->createIndex(
  'myindex2', 
  '{"fields": [{
    "field": "$.home", 
    "type": "GEOJSON", 
    "required": true}], 
    "type": "SPATIAL"}'
);

// Index with multiple fields
$collection->createIndex(
  'myindex3', 
  '{"fields": [
    {
      "field": "$.name",
      "type": "TEXT(20)",
      "required": true
    },
    {
      "field": "$.age",
      "type": "INTEGER"
    },
    {
      "field": "$.job",
      "type": "TEXT(30)",
      "required": false
    }
  ],
  "unique": true
  }'
);

add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址：https://www.php.net/manual/en/mysql-xdevapi-collection.createindex.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库 JAVA 面试 NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 adodb手册 ADORecordSet对象 opcache预加载 Composer的Packagist资源 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet mysql面试题 PHP json解析（json_decode）页面工具 php中几种注释规范 [原创]诡异的php-fpm超时问题纯php实现DES以及TripleDES加密算法 php 修改图片大小支持php7的性能采集扩展 PHP5 扩展SOAP 调用 webservice

略微加速

PHP官方手册 - 互联网笔记

Collection::createIndex

说明

参数

返回值

范例

User Contributed Notes