change ES schema

# Get aliases
GET http://:esHost/_aliases

# {
#  "filter": { "terms": { "postId": ["dGfbX_4XQ5aq34X_PY8OTA"] } }
# }

# Create the posts index
PUT http://:esHost/posts-0003

# Create an alias for the posts index
POST http://:esHost/_aliases
{
  "actions": [
    { "remove": { "index": "posts-0002", "alias": "posts" } },
    { "add": { "index": "posts-0003", "alias": "posts" } }
  ]
}

# Re-index posts
POST http://:esHost/_reindex
{
  "source": { "index": "posts-0001" },
  "dest": { "index": "posts-0002" }
}