added Impala ref

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diff --git a/index.html b/index.html
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@@ -173,39 +173,39 @@ You can learn more about Zstandard API by reading [its documentation](http://fac
 Should you need Zstandard in another language [than reference C],
 here is a list of known bindings and their authors :
 
-| Language     | Author              | URL                                   |
-| ------------ | ------------------- | ------------------------------------- |
-| __Java__     | Luben Karavelov     | https://github.com/luben/zstd-jni     |
-| __Python__ (full) | Gregory Szorc  | https://pypi.python.org/pypi/zstandard
+| Language      | Author              | URL                                   |
+| ------------- | ------------------- | ------------------------------------- |
+| __Java__      | Luben Karavelov     | https://github.com/luben/zstd-jni     |
+| __Python__ (full) | Gregory Szorc   | https://pypi.python.org/pypi/zstandard
 | __Python__ (simple) | Sergey Dryabzhinsky | https://github.com/sergey-dryabzhinsky/python-zstd
-| __Rust__     | Alexandre Bury      | https://crates.io/crates/zstd         |
-| __C#__       | SKB Kontur          | https://github.com/skbkontur/ZstdNet  |
+| __Rust__      | Alexandre Bury      | https://crates.io/crates/zstd         |
+| __C#__        | SKB Kontur          | https://github.com/skbkontur/ZstdNet  |
 | __C#__ (streaming) | Bernhard Pichler | https://github.com/bp74/Zstandard.Net
 | __Javascript__ (emscripten) | Yoshihito | https://www.npmjs.com/package/zstd-codec
-| __Node.js__ streams | albertdb     | https://www.npmjs.com/package/node-zstandard
-| __Node.js__ buffers | Zwb          | https://www.npmjs.com/package/node-zstd
-| __PHP__      | Kamijo              | https://github.com/kjdev/php-ext-zstd |
-| __Swift__    | Anatoli Peredera    | https://github.com/omniprog/SwiftZSTD |
-| __Perl__     | Jiro Nishiguchi     | https://metacpan.org/release/Compress-Zstd
-| __Objective C__ | Micha Mazaheri   | https://github.com/luckymarmot/ZstdKit
-| __Ruby__     | SpringMT            | https://github.com/SpringMT/zstd-ruby |
-| __Ruby__ (FFI) | Michael Sievers   | https://github.com/msievers/zstandard-ruby |
-| __Go__       | Vianney Tran        | https://github.com/DataDog/zstd       |
-| __Go__ (+dict) | Aliaksandr Valialkin | https://github.com/valyala/gozstd  |
-| __D__        | Masahiro Nakagawa   | https://code.dlang.org/packages/zstd  |
-| __Ada__      | John Marino         | https://github.com/jrmarino/zstd-ada  |
-| __Lua__      | Soojin Nam          | https://github.com/sjnam/lua-resty-zstd
-| __Haskell__  | Bryan O'Sullivan    | https://github.com/facebookexperimental/hs-zstd
-| __Erlang__   | Yuki Ito            | https://hex.pm/packages/zstd          |
+| __Node.js__ streams | albertdb      | https://www.npmjs.com/package/node-zstandard
+| __Node.js__ buffers | Zwb           | https://www.npmjs.com/package/node-zstd
+| __PHP__       | Kamijo              | https://github.com/kjdev/php-ext-zstd |
+| __Swift__     | Anatoli Peredera    | https://github.com/omniprog/SwiftZSTD |
+| __Perl__      | Jiro Nishiguchi     | https://metacpan.org/release/Compress-Zstd
+| __Objective C__ | Micha Mazaheri    | https://github.com/luckymarmot/ZstdKit
+| __Ruby__      | SpringMT            | https://github.com/SpringMT/zstd-ruby |
+| __Ruby__ (FFI) | Michael Sievers    | https://github.com/msievers/zstandard-ruby
+| __Go__        | Vianney Tran        | https://github.com/DataDog/zstd       |
+| __Go__ (+dict) | Aliaksandr Valialkin | https://github.com/valyala/gozstd   |
+| __D__         | Masahiro Nakagawa   | https://code.dlang.org/packages/zstd  |
+| __Ada__       | John Marino         | https://github.com/jrmarino/zstd-ada  |
+| __Lua__       | Soojin Nam          | https://github.com/sjnam/lua-resty-zstd
+| __Haskell__   | Bryan O'Sullivan    | https://github.com/facebookexperimental/hs-zstd
+| __Erlang__    | Yuki Ito            | https://hex.pm/packages/zstd          |
 | __Visual Basic 6__ | Tanner Helland | https://github.com/tannerhelland/VB6-Compression
-| __Julia__    | Kenta Sato          | https://github.com/bicycle1885/CodecZstd.jl
-| __Tcl__      | D. Bohdan           | https://wiki.tcl-lang.org/48788       |
-| __R__        | Konstantin Sorokin  | https://cran.r-project.org/web/packages/zstdr/index.html
-| __SmallTalk__| Instantiations      | http://www.instantiations.com/resources/goodies.html#instantiations
-| __Elixir__   | chenzhuoyu          | https://hex.pm/packages/ex_zstd       |
-| __OCaml__    | Jane Street         | https://opam.ocaml.org/packages/zstandard/
-| __Pascal__   | Denis Anisimov      | https://github.com/DenisAnisimov/ZSTD.pas
-| __Crystal__  | @didactic-drunk     | https://github.com/didactic-drunk/zstd.cr |
+| __Julia__     | Kenta Sato          | https://github.com/bicycle1885/CodecZstd.jl
+| __Tcl__       | D. Bohdan           | https://wiki.tcl-lang.org/48788       |
+| __R__         | Konstantin Sorokin  | https://cran.r-project.org/web/packages/zstdr/index.html
+| __SmallTalk__ | Instantiations      | http://www.instantiations.com/resources/goodies.html#instantiations
+| __Elixir__    | chenzhuoyu          | https://hex.pm/packages/ex_zstd       |
+| __OCaml__     | Jane Street         | https://opam.ocaml.org/packages/zstandard/
+| __Pascal__    | Denis Anisimov      | https://github.com/DenisAnisimov/ZSTD.pas
+| __Crystal__   | @didactic-drunk     | https://github.com/didactic-drunk/zstd.cr
 
 
 [than reference C]:https://github.com/facebook/zstd
@@ -267,7 +267,8 @@ Finally, Peazip is a free multi-platforms archiver by Giorgio Tani with [support
     <li><a href="https://www.postgresql.org/"      ><img src="images/postgresql.png"/></a>   [PostgreSQL](https://github.com/grahamedgecombe/pgzstd) </li>
     <li><a href="https://github.com/VictoriaMetrics/VictoriaMetrics/"><img src="images/victoriametrics.png"/></a> [VictoriaMetrics](https://medium.com/faun/victoriametrics-achieving-better-compression-for-time-series-data-than-gorilla-317bc1f95932) </li>
     <li><a href="https://www.scylladb.com/"        ><img src="images/scylla.png"  /></a> [Scylla](https://www.scylladb.com/2019/10/04/compression-in-scylla-part-one/) </li>
-    <li><a href="https://www.vertica.com/"         ><img src="images/vertica.png"  /></a> [Vertica](https://www.vertica.com/docs/9.3.x/HTML/Content/Authoring/SQLReferenceManual/Statements/encoding-type.htm?zoom_highlight=zstandard#Zstandar) </li>
+    <li><a href="https://www.vertica.com/"         ><img src="images/vertica.png" /></a> [Vertica](https://www.vertica.com/docs/9.3.x/HTML/Content/Authoring/SQLReferenceManual/Statements/encoding-type.htm?zoom_highlight=zstandard#Zstandar) </li>
+    <li><a href="https://impala.apache.org/"       ><img src="images/impala.png"  /></a> [Impala](https://impala.apache.org/docs/build/html/topics/impala_new_features.html) </li>
   </ul>
 </div>