索引操作
Indices
Types
类型即对应了关系型数据库中表的地位，那么常见的基本操作也就包括了对于类型的创建 ( 类比于表创建 ) 与类型结构的修正 ( 类比于表结构修正 )。
// Creates an index called twitter with the message field in the tweet mapping type.
PUT twitter
{
"mappings": {
"tweet": {
"properties": {
"message": {
"type": "string"
}
}
}
}
}
// Uses the PUT mapping API to add a new mapping type called user.
PUT twitter/_mapping/user
{
"properties": {
"name": {
"type": "string"
}
}
}
// Uses the PUT mapping API to add a new field called user_name to the tweet mapping type.
PUT twitter/_mapping/tweet
{
"properties": {
"user_name": {
"type": "string"
}
}
}
内置索引
_cat:
# cat paths
/_cat/allocation
/_cat/shards
/_cat/shards/{index}
/_cat/master
/_cat/nodes
/_cat/indices
/_cat/indices/{index}
/_cat/segments
/_cat/segments/{index}
/_cat/count
/_cat/count/{index}
/_cat/recovery
/_cat/recovery/{index}
/_cat/health
/_cat/pending_tasks
/_cat/aliases
/_cat/aliases/{alias}
/_cat/thread_pool
/_cat/plugins
/_cat/fielddata
/_cat/fielddata/{fields}