Revert "Use a different Date data type"

This reverts commit 857c7d3972a03cbeebf730d99b924d3710dee6a0.

1 files changed, 2 insertions, 11 deletions

diff --git a/src/database/postgresql_engine.hpp b/src/database/postgresql_engine.hpp
index 70215d4..1a9c249 100644
--- a/src/database/postgresql_engine.hpp
+++ b/src/database/postgresql_engine.hpp
@@ -23,22 +23,13 @@ class PostgresqlEngine: public DatabaseEngine
   ~PostgresqlEngine();
 
   static std::unique_ptr<DatabaseEngine> open(const std::string& string);
-  EngineType engine_type() const override
-  {
-    return EngineType::Postgresql;
-  }
 
-  std::map<std::string, std::string> get_all_columns_from_table(const std::string& table_name) override final;
+  std::set<std::string> get_all_columns_from_table(const std::string& table_name) override final;
   std::tuple<bool, std::string> raw_exec(const std::string& query) override final;
   std::unique_ptr<Statement> prepare(const std::string& query) override;
   void extract_last_insert_rowid(Statement& statement) override;
   std::string get_returning_id_sql_string(const std::string& col_name) override;
-  std::string id_column_type() const override;
-  std::string datetime_column_type() const override;
-  void convert_date_format(DatabaseEngine& engine) override;
-  long double epoch_to_floating_value(long double seconds) const override;
-  void init_session() override;
-  std::string escape_param_number(int nb) const override;
+  std::string id_column_type() override;
 private:
   PGconn* const conn;
 };