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src/backend/Admin/Admin.ts

@@ -146,12 +146,19 @@ implements TableDefinitionExporter {
 
         this.knex = Knex(conf)
     
-        await Promise.all(this.getTableDefinitions().map(async (def)=>{
-            const hasTable = await this.knex.schema.hasTable(def.name)
-            if(!hasTable){
-                await this.knex.schema.createTable(def.name, def.tableBuilder)
-            }
-        }))
+        await Promise.all(
+            this.getTableDefinitions()
+            //make unique by name
+            .filter((other, index, self) => index === self.findIndex(
+                (self) => self.name === other.name)
+            )
+            //create table if not exists
+            .map(async (def)=> {
+                const hasTable = await this.knex.schema.hasTable(def.name)
+                if(!hasTable)
+                    return await this.knex.schema.createTable(def.name, def.tableBuilder)
+            })
+        )
         
         return this.knex
     }