You can use the Select API to query objects with following features:

- Objects must be in CSV, JSON, or Parquet(*) format.
- UTF-8 is the only encoding type the Select API supports.

#### Caching

package tar

import (
	"io/fs"
	"os/user"
	"runtime"
	"strconv"
	"sync"
	"syscall"
)

func init() {
	sysStat = statUnix
}

// userMap and groupMap caches UID and GID lookups for performance reasons.
// The downside is that renaming uname or gname by the OS never takes effect.
var userMap, groupMap sync.Map // map[int]string

func statUnix(fi fs.FileInfo, h *Header, doNameLookups bool) error {

Avec **FastAPI** vous aurez toutes les fonctionnalités de **Starlette** (FastAPI est juste Starlette sous stéroïdes):

* Des performances vraiment impressionnantes. C'est l'<a href="https://github.com/encode/starlette#performance" class="external-link" target="_blank">un des framework Python les plus rapide, à égalité avec **NodeJS** et **GO**</a>.
* Le support des **WebSockets**.
* Le support de **GraphQL**.

But it's possible to customize it, you can set a specific CDN, or serve the files yourself.

## Custom CDN for JavaScript and CSS

INHERIT: ../en/mkdocs.maybe-insiders.yml
site_name: FastAPI
site_description: FastAPI framework, high performance, easy to learn, fast to code, ready for production
site_url: https://fastapi.tiangolo.com/
theme:
  name: material
  custom_dir: ../en/overrides
  palette:
  - media: "(prefers-color-scheme)"
    toggle:
      icon: material/lightbulb-auto
      name: Switch to light mode
  - media: '(prefers-color-scheme: light)'
    scheme: default

  DEVICE_PLACEMENT_EXPLICIT = 0,
  // Copy the tensor to the right device but log a warning.
  DEVICE_PLACEMENT_WARN = 1,
  // Silently copy the tensor, which has a performance cost since the operation
  // will be blocked till the copy completes. This is the default policy.
  DEVICE_PLACEMENT_SILENT = 2,
  // Placement policy which silently copies int32 tensors but not other dtypes.

Trouvez un moyen d'avoir une performance folle.

C'est pourquoi **FastAPI** est basé sur Starlette, car il s'agit du framework le plus rapide disponible (testé par des benchmarks tiers).

///

### <a href="https://falconframework.org/" class="external-link" target="_blank">Falcon</a>

`FastAPI` 🤙 🎧-🎓 `Starlette`. , 🚥 👆 ⏪ 💭 ⚖️ ⚙️ 💃, 🌅 🛠️ 🔜 👷 🎏 🌌.

⏮️ **FastAPI** 👆 🤚 🌐 **💃**'Ⓜ ⚒ (FastAPI 💃 🔛 💊):

* 🤙 🎆 🎭. ⚫️ <a href="https://github.com/encode/starlette#performance" class="external-link" target="_blank">1️⃣ ⏩ 🐍 🛠️ 💪, 🔛 🇷🇪 ⏮️ **✳** &amp; **🚶**</a>.
* ** *️⃣ ** 🐕‍🦺.
* -🛠️ 🖥 📋.
* 🕴 &amp; 🤫 🎉.
* 💯 👩‍💻 🏗 🔛 🇸🇲.
* **⚜**, 🗜, 🎻 📁, 🎏 📨.

* Data validation
* API annotation and automatic documentation

And you only have to declare them once.