diff --git a/composer.json b/composer.json
index 952552d..9bf6121 100644
--- a/composer.json
+++ b/composer.json
@@ -6,5 +6,10 @@
         "psr-4": {
             "TipsTricks\\": "src"
         }
+    },
+    "require": {
+        "php" : "7.3",
+        "zendframework/zend-db": "^2.10",
+        "inovia-team/matters-repository": "^1.1"
     }
 }
diff --git a/composer.lock b/composer.lock
index 1906415..02ddbd8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,205 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2e756aa16a51ab824d1775c97f233eb2",
-    "packages": [],
+    "content-hash": "600aeab7dca57e429628b0c20a869a53",
+    "packages": [
+        {
+            "name": "inovia-team/matters-repository",
+            "version": "1.1.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/matterstech/matters-repository.git",
+                "reference": "c4cc6f0cc7499e469f78e043d5c240c7f0f2f072"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/matterstech/matters-repository/zipball/c4cc6f0cc7499e469f78e043d5c240c7f0f2f072",
+                "reference": "c4cc6f0cc7499e469f78e043d5c240c7f0f2f072",
+                "shasum": ""
+            },
+            "require": {
+                "zendframework/zend-db": "^2.9",
+                "zendframework/zend-hydrator": "^2.3"
+            },
+            "require-dev": {
+                "mockery/mockery": "~0.9",
+                "phpunit/phpunit": "^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Matters\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "description": "Matters' proposal on how to use zendframework/zend-db",
+            "time": "2018-05-18T16:30:04+00:00"
+        },
+        {
+            "name": "zendframework/zend-db",
+            "version": "2.10.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-db.git",
+                "reference": "77022f06f6ffd384fa86d22ab8d8bbdb925a1e8e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-db/zipball/77022f06f6ffd384fa86d22ab8d8bbdb925a1e8e",
+                "reference": "77022f06f6ffd384fa86d22ab8d8bbdb925a1e8e",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0",
+                "zendframework/zend-stdlib": "^2.7 || ^3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^5.7.25 || ^6.4.4",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-eventmanager": "^2.6.2 || ^3.0",
+                "zendframework/zend-hydrator": "^1.1 || ^2.1 || ^3.0",
+                "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3"
+            },
+            "suggest": {
+                "zendframework/zend-eventmanager": "Zend\\EventManager component",
+                "zendframework/zend-hydrator": "Zend\\Hydrator component for using HydratingResultSets",
+                "zendframework/zend-servicemanager": "Zend\\ServiceManager component"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.9-dev",
+                    "dev-develop": "2.10-dev"
+                },
+                "zf": {
+                    "component": "Zend\\Db",
+                    "config-provider": "Zend\\Db\\ConfigProvider"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Db\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "Database abstraction layer, SQL abstraction, result set abstraction, and RowDataGateway and TableDataGateway implementations",
+            "keywords": [
+                "ZendFramework",
+                "db",
+                "zf"
+            ],
+            "time": "2019-02-25T11:37:45+00:00"
+        },
+        {
+            "name": "zendframework/zend-hydrator",
+            "version": "2.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-hydrator.git",
+                "reference": "2bfc6845019e7b6d38b0ab5e55190244dc510285"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-hydrator/zipball/2bfc6845019e7b6d38b0ab5e55190244dc510285",
+                "reference": "2bfc6845019e7b6d38b0ab5e55190244dc510285",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0",
+                "zendframework/zend-stdlib": "^3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.2",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-eventmanager": "^2.6.2 || ^3.0",
+                "zendframework/zend-filter": "^2.6",
+                "zendframework/zend-inputfilter": "^2.6",
+                "zendframework/zend-serializer": "^2.6.1",
+                "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3"
+            },
+            "suggest": {
+                "zendframework/zend-eventmanager": "^2.6.2 || ^3.0, to support aggregate hydrator usage",
+                "zendframework/zend-filter": "^2.6, to support naming strategy hydrator usage",
+                "zendframework/zend-serializer": "^2.6.1, to use the SerializableStrategy",
+                "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3, to support hydrator plugin manager usage"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-release-2.4": "2.4.x-dev"
+                },
+                "zf": {
+                    "component": "Zend\\Hydrator",
+                    "config-provider": "Zend\\Hydrator\\ConfigProvider"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Hydrator\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "Serialize objects to arrays, and vice versa",
+            "keywords": [
+                "ZendFramework",
+                "hydrator",
+                "zf"
+            ],
+            "time": "2019-10-04T11:17:36+00:00"
+        },
+        {
+            "name": "zendframework/zend-stdlib",
+            "version": "3.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-stdlib.git",
+                "reference": "66536006722aff9e62d1b331025089b7ec71c065"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-stdlib/zipball/66536006722aff9e62d1b331025089b7ec71c065",
+                "reference": "66536006722aff9e62d1b331025089b7ec71c065",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0"
+            },
+            "require-dev": {
+                "phpbench/phpbench": "^0.13",
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.2",
+                "zendframework/zend-coding-standard": "~1.0.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.2.x-dev",
+                    "dev-develop": "3.3.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Stdlib\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "SPL extensions, array utilities, error handlers, and more",
+            "keywords": [
+                "ZendFramework",
+                "stdlib",
+                "zf"
+            ],
+            "time": "2018-08-28T21:34:05+00:00"
+        }
+    ],
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
diff --git a/src/Repo/Column.php b/src/Repo/Column.php
new file mode 100644
index 0000000..aee4db2
--- /dev/null
+++ b/src/Repo/Column.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use Zend\Db\Sql\Expression;
+
+class Column extends Expression
+{
+    public function __construct(string $columnName, TableIdentifier $table)
+    {
+        $expression = sprintf('%s.%s', $table->getFullName(), $columnName);
+        parent::__construct($expression);
+    }
+}
\ No newline at end of file
diff --git a/src/Repo/Condition.php b/src/Repo/Condition.php
new file mode 100644
index 0000000..8990230
--- /dev/null
+++ b/src/Repo/Condition.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use TipsTricks\Repo\Condition\AndSql;
+
+class Condition
+{
+    public static function andSql()
+    {
+        return new AndSql();
+    }
+
+}
\ No newline at end of file
diff --git a/src/Repo/Condition/AndSql.php b/src/Repo/Condition/AndSql.php
new file mode 100644
index 0000000..fb5694c
--- /dev/null
+++ b/src/Repo/Condition/AndSql.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace TipsTricks\Repo\Condition;
+
+use Zend\Db\Sql\Expression;
+
+class AndSql extends Expression
+{
+    private $parts = [];
+
+    public function orSql(OrSql $expression)
+    {
+        $this->appendExpression($expression);
+    }
+
+    public function equals($left, $right)
+    {
+        $this->appendExpression(new Equals($left, $right));
+        return $this;
+    }
+
+    private function appendExpression(Expression $expression)
+    {
+        $this->parts[] = '('. $expression->getExpression() .')';
+        $this->expression = implode(' AND ', $this->parts);
+    }
+}
diff --git a/src/Repo/Condition/Equals.php b/src/Repo/Condition/Equals.php
new file mode 100644
index 0000000..53598fb
--- /dev/null
+++ b/src/Repo/Condition/Equals.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace TipsTricks\Repo\Condition;
+
+use Zend\Db\Sql\Expression;
+
+class Equals extends Expression
+{
+    public function __construct($left, $right)
+    {
+        $left = $this->castAsExpression($left);
+        $right = $this->castAsExpression($right);
+
+        $expression = sprintf('%s = %s', $left->getExpression(), $right->getExpression());
+        parent::__construct($expression);
+    }
+
+    private function castAsExpression($expression) : Expression
+    {
+        if (!is_a($expression, Expression::class)) {
+            return new Expression($expression);
+        }
+        return $expression;
+    }
+}
\ No newline at end of file
diff --git a/src/Repo/Condition/OrSql.php b/src/Repo/Condition/OrSql.php
new file mode 100644
index 0000000..4d55f99
--- /dev/null
+++ b/src/Repo/Condition/OrSql.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace TipsTricks\Repo\Condition;
+
+use Zend\Db\Sql\Expression;
+
+class OrSql extends Expression
+{
+    public function andSql(AndSql $expression)
+    {
+        $this->appendExpression($expression);
+    }
+
+    public function equals(Expression $left, Expression $right)
+    {
+        $this->appendExpression(new Equals($left, $right));
+    }
+
+    private function appendExpression(Expression $expression)
+    {
+        $this->expression .= ' OR ('. $expression->getExpression() .')';
+    }
+}
diff --git a/src/Repo/Entity.php b/src/Repo/Entity.php
new file mode 100644
index 0000000..8f4a6e3
--- /dev/null
+++ b/src/Repo/Entity.php
@@ -0,0 +1,23 @@
+<?php
+
+
+namespace TipsTricks\Repo;
+
+class Entity implements EntityInterface
+{
+    private $id;
+
+    private $name;
+
+    private $plaque;
+
+    public static function hydrate($id, $name, $plaque)
+    {
+        $self = new self();
+
+        $self->id = $id;
+        $self->name = $name;
+        $self->plaque = $plaque;
+        return $self;
+    }
+}
diff --git a/src/Repo/Repo.php b/src/Repo/Repo.php
new file mode 100644
index 0000000..e104e54
--- /dev/null
+++ b/src/Repo/Repo.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use TipsTricks\Repo\On\Equals as Equals;
+use Zend\Db\Sql\Select;
+
+class Repo
+{
+    /**
+     * return Entity[]
+     */
+    public function findByUuidLargerThan4()
+    {
+        $resas = new TableIdentifier('resa', 'schema');
+        $vehicles = new TableIdentifier('vehicle', 'schema');
+        $transactions = new TableIdentifier('transaction', 'schema');
+
+        $resaId = $resas->column('uuid');
+        $vehicleId = $vehicles->column('resa_id');
+        $transactionId = $transactions->column('resa_id');
+
+        $select = (new Select())
+            ->from($resas)
+            ->join($vehicles, new Equals($resaId, $vehicleId))
+            ->join($transactions, new Equals($resaId, $transactionId))
+            ;
+
+
+        $plop = new Columns(Entity::class, [
+            $resas->column('uuid'),
+            $resas->column('first_name'),
+            $vehicles->column('plaque')
+        ]);
+
+        $where = new Where('uuid > 4');
+
+        return new Select($columns, $jointure, $where);
+    }
+}
+}
\ No newline at end of file
diff --git a/src/Repo/Select.php b/src/Repo/Select.php
new file mode 100644
index 0000000..9b4235f
--- /dev/null
+++ b/src/Repo/Select.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use Zend\Db\Sql\Expression;
+use Zend\Db\Sql\Select as SqlSelect;
+
+class Select extends SqlSelect
+{
+    public function joinLeft($name, $on, $columns)
+    {
+        return parent::join($name, $on, $columns, parent::JOIN_LEFT);
+    }
+
+    public function whereCondition(Expression $expression)
+    {
+        $this->where->expression(
+            $expression->getExpression()
+        );
+    }
+}
\ No newline at end of file
diff --git a/src/Repo/TableIdentifier.php b/src/Repo/TableIdentifier.php
new file mode 100644
index 0000000..5ed5c98
--- /dev/null
+++ b/src/Repo/TableIdentifier.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use Zend\Db\Sql\TableIdentifier as ZendTableIdentifier;
+
+class TableIdentifier extends ZendTableIdentifier
+{
+    public function column(string $columnName)
+    {
+        return new Column($columnName, new self($this->table, $this->schema));
+    }
+
+    public function getFullName()
+    {
+        if (!$this->schema) {
+            return sprintf('"%s"', $this->table);
+        }
+        return sprintf('"%s"."%s"', $this->schema, $this->table);
+    }
+}
\ No newline at end of file
diff --git a/tests/Repo/RepoTest.php b/tests/Repo/RepoTest.php
new file mode 100644
index 0000000..2950fdf
--- /dev/null
+++ b/tests/Repo/RepoTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace TipsTricks\Repo;
+
+use PHPUnit\Framework\TestCase;
+use TipsTricks\Repo\Condition\Equals;
+use Zend\Db\Adapter\Platform\Postgresql;
+use Zend\Db\Sql\Expression;
+
+class RepoTest extends TestCase
+{
+    public function testSelect()
+    {
+        $select = new Select();
+
+        $select->columns([
+            'title'           ,
+            'officer'    ,
+            'reference',
+        ]);
+
+        $designs = new TableIdentifier('asset_design', 'mis');
+        $invoices = new TableIdentifier('invoice', 'public');
+
+        $designJoinCondition = Condition::AndSql()
+            ->equals($designs->column('id'), $invoices->column('asset_id'))
+            ->equals($invoices->column('asset_type'), 'design');
+
+        $select->from($designs);
+
+        $select->joinLeft(
+            $invoices,
+            $designJoinCondition,
+            []
+        );
+
+        $select->where->equalTo(
+            $invoices->column('owner_id'), 4
+        );
+
+        $platform = new class extends Postgresql
+        {
+            public function quoteValue($value)
+            {
+                return $value;
+            }
+        };
+        self::assertSame(
+            'SELECT "mis"."asset_design"."title" AS "title", "mis"."asset_design"."officer" AS "officer", "mis"."asset_design"."reference" AS "reference" FROM "mis"."asset_design" LEFT JOIN "public"."invoice" ON ("mis"."asset_design".id = "public"."invoice".asset_id) AND ("public"."invoice".asset_type = design) WHERE "public"."invoice".owner_id = 4',
+            $select->getSqlString($platform)
+        );
+    }
+}
\ No newline at end of file