diff --git a/tangostationcontrol/tangostationcontrol/toolkit/archiver_base_mysql.py b/tangostationcontrol/tangostationcontrol/toolkit/archiver_base_mysql.py
deleted file mode 100644
index e770cbb42820804ada57dcc3790afd04e2ded842..0000000000000000000000000000000000000000
--- a/tangostationcontrol/tangostationcontrol/toolkit/archiver_base_mysql.py
+++ /dev/null
@@ -1,926 +0,0 @@
-#! /usr/bin/env python3
-
-from sqlalchemy.dialects.mysql.types import INTEGER
-from sqlalchemy.orm import declarative_base
-from sqlalchemy import Column, Integer, String
-from sqlalchemy.dialects.mysql import DOUBLE,TIMESTAMP,BLOB, FLOAT, BIGINT
-from typing import List
-import numpy
-
-#Declarative system used to define classes mapped to relational DB tables
-Base = declarative_base()
-
-class Attribute(Base):
-    """
-    Class that represents a Tango Attribute mapped to table 'att_conf'
-    """
-    __tablename__ = 'att_conf'
-    __table_args__ = {'extend_existing': True}
-    
-    att_conf_id = Column(Integer, primary_key=True)
-    att_name = Column(String)
-    att_conf_data_type_id = Column(Integer)
-    att_ttl = Column(Integer)
-    facility = Column(String)
-    domain = Column(String)
-    family = Column(String)
-    member = Column(String)
-    name = Column(String)
-     
-    def __repr__(self):
-        return f"<Attribute(fullname='{self.att_name}',data_type ='{self.att_conf_data_type_id}',ttl='{self.att_ttl}',facility ='{self.facility}',domain ='{self.domain}',family ='{self.family}',member ='{self.member}',name ='{self.name}')>"
-    
-class DataType(Base):
-    """
-    Class that represents a Tango Data Type mapped to table 'att_conf_data_type'
-    """
-    __tablename__ = 'att_conf_data_type'
-    __table_args__ = {'extend_existing': True}
-    
-    att_conf_data_type_id = Column(Integer, primary_key=True)
-    data_type = Column(String)
-    
-    def __repr__(self):
-        return f"<DataType(type='{self.data_type}')>"
-
-class Scalar(Base):
-    """
-    Abstract class that represents Super-class of Scalar mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True 
-
-    # Primary key is not defined for tables which store values, but SQLAlchemy requires a mandatory 
-    # primary key definition. Anyway, this definition is on Python-side and does not compromise
-    # DBMS architecture
-    att_conf_id = Column(Integer, primary_key=True)
-    data_time = Column(TIMESTAMP)
-    recv_time = Column(TIMESTAMP)
-    insert_time = Column(TIMESTAMP, primary_key=True)
-    quality = Column(Integer)
-    att_error_desc_id = Column(Integer)
-
-class Scalar_Boolean(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Boolean mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Scalar_Boolean_RO(Scalar_Boolean):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devboolean_ro'
-    """
-    __tablename__ = 'att_scalar_devboolean_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Scalar_Boolean_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Boolean_RW(Scalar_Boolean):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devboolean_rw'
-    """
-    __tablename__ = 'att_scalar_devboolean_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Scalar_Boolean_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_UChar(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Uchar mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Scalar_UChar_RO(Scalar_UChar):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devuchar_ro'
-    """
-    __tablename__ = 'att_scalar_devuchar_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Scalar_UChar_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_UChar_RW(Scalar_UChar):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devuchar_rw'
-    """
-    __tablename__ = 'att_scalar_devuchar_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Scalar_UChar_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Double(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Double mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(DOUBLE)
-
-class Scalar_Double_RO(Scalar_Double):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devdouble_ro'
-    """
-    __tablename__ = 'att_scalar_devdouble_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Double_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Double_RW(Scalar_Double):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devdouble_rw'
-    """
-    __tablename__ = 'att_scalar_devdouble_rw'
-    __table_args__ = {'extend_existing': True}  
-    value_w = Column(DOUBLE)
-
-    def __repr__(self):
-        return f"<Scalar_Double_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Encoded(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Encoded mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(BLOB)
-
-class Scalar_Encoded_RO(Scalar_Encoded):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devencoded_ro'
-    """
-    __tablename__ = 'att_scalar_devencoded_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Encoded_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Encoded_RW(Scalar_Encoded):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devencoded_rw'
-    """
-    __tablename__ = 'att_scalar_devencoded_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(BLOB)
-
-    def __repr__(self):
-        return f"<Scalar_Encoded_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Enum(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Enum mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Scalar_Enum_RO(Scalar_Enum):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devenum_ro'
-    """
-    __tablename__ = 'att_scalar_devenum_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Enum_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Enum_RW(Scalar_Enum):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devenum_rw'
-    """
-    __tablename__ = 'att_scalar_devenum_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Scalar_Enum_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Float(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Float mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(FLOAT)
-
-class Scalar_Float_RO(Scalar_Float):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devfloat_ro'
-    """
-    __tablename__ = 'att_scalar_devfloat_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Float_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Float_RW(Scalar_Float):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devfloat_rw'
-    """
-    __tablename__ = 'att_scalar_devfloat_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(FLOAT)
-
-    def __repr__(self):
-        return f"<Scalar_Float_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Long64(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Long64 mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(BIGINT)
-
-class Scalar_Long64_RO(Scalar_Long64):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devlong64_ro'
-    """
-    __tablename__ = 'att_scalar_devlong64_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Long64_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Long64_RW(Scalar_Long64):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devlong64_rw'
-    """
-    __tablename__ = 'att_scalar_devlong64_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(BIGINT)
-
-    def __repr__(self):
-        return f"<Scalar_Long64_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_ULong64(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar ULong64 mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Scalar_ULong64_RO(Scalar_ULong64):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devulong64_ro'
-    """
-    __tablename__ = 'att_scalar_devulong64_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_ULong64_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_ULong64_RW(Scalar_ULong64):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devulong64_rw'
-    """
-    __tablename__ = 'att_scalar_devulong64_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Scalar_ULong64_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-
-class Scalar_Long(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Long mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Scalar_Long_RO(Scalar_Long):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devlong_ro'
-    """
-    __tablename__ = 'att_scalar_devlong_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Long_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Long_RW(Scalar_Long):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devlong_rw'
-    """
-    __tablename__ = 'att_scalar_devlong_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Scalar_Long_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_ULong(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar ULong mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Scalar_ULong_RO(Scalar_ULong):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devulong_ro'
-    """
-    __tablename__ = 'att_scalar_devulong_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_ULong_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_ULong_RW(Scalar_ULong):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devulong_rw'
-    """
-    __tablename__ = 'att_scalar_devulong_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Scalar_ULong_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Short(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar Short mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Scalar_Short_RO(Scalar_Short):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devshort_ro'
-    """
-    __tablename__ = 'att_scalar_devshort_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_Short_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_Short_RW(Scalar_Short):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devshort_rw'
-    """
-    __tablename__ = 'att_scalar_devshort_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Scalar_Short_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_State(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar State mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Scalar_State_RO(Scalar_State):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devstate_ro'
-    """
-    __tablename__ = 'att_scalar_devstate_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_State_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_State_RW(Scalar_State):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devstate_rw'
-    """
-    __tablename__ = 'att_scalar_devstate_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Scalar_State_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_String(Scalar):
-    """
-    Abstract class that represents Parent class of Scalar String mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(String)
-
-class Scalar_String_RO(Scalar_String):
-    """
-    Class that represents a Tango Scalar Read-Only Value mapped to table 'att_scalar_devstring_ro'
-    """
-    __tablename__ = 'att_scalar_devstring_ro'
-    __table_args__ = {'extend_existing': True}
-
-    def __repr__(self):
-        return f"<Scalar_String_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Scalar_String_RW(Scalar_String):
-    """
-    Class that represents a Tango Scalar Read-Write Value mapped to table 'att_scalar_devstring_rw'
-    """
-    __tablename__ = 'att_scalar_devstring_rw'
-    __table_args__ = {'extend_existing': True}
-    value_w = Column(String)
-
-    def __repr__(self):
-        return f"<Scalar_String_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',value_r='{self.value_r}',value_w='{self.value_w}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array(Base):
-    """
-    Abstract class that represents Super-class of Array mapper classes
-    """
-    __abstract__ = True
-    # Primary key is not defined for tables which store values, but SQLAlchemy requires a mandatory 
-    # primary key definition. Anyway, this definition is on Python-side and does not compromise
-    # DBMS architecture
-    att_conf_id = Column(Integer, primary_key=True)
-    data_time = Column(TIMESTAMP)
-    recv_time = Column(TIMESTAMP)
-    insert_time = Column(TIMESTAMP, primary_key=True)
-    idx = Column(Integer, primary_key=True)
-    dim_x_r = Column(Integer)
-    dim_y_r = Column(Integer)
-    quality = Column(Integer)
-    att_error_desc_id = Column(Integer)
-
-class Array_Boolean(Array):
-    """
-    Abstract class that represents Parent class of Array Boolean mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Array_Boolean_RO(Array_Boolean):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devboolean_ro'
-    """
-    __tablename__ = 'att_array_devboolean_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Boolean_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Boolean_RW(Array_Boolean):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devboolean_rw'
-    """
-    __tablename__ = 'att_array_devboolean_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Array_Boolean_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_UChar(Array):
-    """
-    Abstract class that represents Parent class of Array UChar mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Array_UChar_RO(Array_UChar):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devuchar_ro'
-    """
-    __tablename__ = 'att_array_devuchar_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_UChar_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_UChar_RW(Array_Boolean):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devuchar_rw'
-    """
-    __tablename__ = 'att_array_devuchar_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Array_UChar_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Double(Array):
-    """
-    Abstract class that represents Parent class of Array Double mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(DOUBLE)
-
-class Array_Double_RO(Array_Double):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devdouble_ro'
-    """
-    __tablename__ = 'att_array_devdouble_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Double_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Double_RW(Array_Double):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devdouble_rw'
-    """
-    __tablename__ = 'att_array_devdouble_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(DOUBLE)
-
-    def __repr__(self):
-        return f"<Array_Double_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Encoded(Array):
-    """
-    Abstract class that represents Parent class of Array Encoded mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(BLOB)
-
-class Array_Encoded_RO(Array_Encoded):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devencoded_ro'
-    """
-    __tablename__ = 'att_array_devencoded_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Encoded_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Encoded_RW(Array_Encoded):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devencoded_rw'
-    """
-    __tablename__ = 'att_array_devencoded_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(BLOB)
-
-    def __repr__(self):
-        return f"<Array_Encoded_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Enum(Array):
-    """
-    Abstract class that represents Parent class of Array Enum mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Array_Enum_RO(Array_Enum):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devenum_ro'
-    """
-    __tablename__ = 'att_array_devenum_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Enum_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Enum_RW(Array_Enum):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devenum_rw'
-    """
-    __tablename__ = 'att_array_devenum_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Array_Enum_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Float(Array):
-    """
-    Abstract class that represents Parent class of Array Float mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(FLOAT)
-
-class Array_Float_RO(Array_Float):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devfloat_ro'
-    """
-    __tablename__ = 'att_array_devfloat_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Float_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Float_RW(Array_Float):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devfloat_rw'
-    """
-    __tablename__ = 'att_array_devfloat_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(FLOAT)
-
-    def __repr__(self):
-        return f"<Array_Float_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Long64(Array):
-    """
-    Abstract class that represents Parent class of Array Long64 mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(BIGINT)
-
-class Array_Long64_RO(Array_Long64):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devlong64_ro'
-    """
-    __tablename__ = 'att_array_devlong64_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Long64_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Long64_RW(Array_Long64):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devlong64_rw'
-    """
-    __tablename__ = 'att_array_devlong64_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(BIGINT)
-
-    def __repr__(self):
-        return f"<Array_Long64_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_ULong64(Array):
-    """
-    Abstract class that represents Parent class of Array ULong64 mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Array_ULong64_RO(Array_ULong64):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devulong64_ro'
-    """
-    __tablename__ = 'att_array_devulong64_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_ULong64_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_ULong64_RW(Array_ULong64):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devulong64_rw'
-    """
-    __tablename__ = 'att_array_devulong64_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Array_ULong64_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-
-class Array_Long(Array):
-    """
-    Abstract class that represents Parent class of Array Long mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Array_Long_RO(Array_Long):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devlong_ro'
-    """
-    __tablename__ = 'att_array_devlong_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Long_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Long_RW(Array_Long):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devlong_rw'
-    """
-    __tablename__ = 'att_array_devlong_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Array_Long_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_ULong(Array):
-    """
-    Abstract class that represents Parent class of Array ULong mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(INTEGER)
-
-class Array_ULong_RO(Array_ULong):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devulong_ro'
-    """
-    __tablename__ = 'att_array_devulong_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_ULong_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_ULong_RW(Array_ULong):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devulong_rw'
-    """
-    __tablename__ = 'att_array_devulong_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(INTEGER)
-
-    def __repr__(self):
-        return f"<Array_ULong_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Short(Array):
-    """
-    Abstract class that represents Parent class of Array Short mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Array_Short_RO(Array_Short):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devshort_ro'
-    """
-    __tablename__ = 'att_array_devshort_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_Short_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_Short_RW(Array_Short):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devshort_rw'
-    """
-    __tablename__ = 'att_array_devshort_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Array_Short_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_State(Array):
-    """
-    Abstract class that represents Parent class of Array State mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(Integer)
-
-class Array_State_RO(Array_State):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devstate_ro'
-    """
-    __tablename__ = 'att_array_devstate_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_State_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_State_RW(Array_State):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devstate_rw'
-    """
-    __tablename__ = 'att_array_devstate_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(Integer)
-
-    def __repr__(self):
-        return f"<Array_State_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_String(Array):
-    """
-    Abstract class that represents Parent class of Array String mapper classes
-    """
-    # In the concrete inheritance use case, it is common that the base class is not represented 
-    # within the database, only the subclasses. In other words, the base class is abstract.
-    __abstract__ = True
-    value_r = Column(String)
-
-class Array_String_RO(Array_String):
-    """
-    Class that represents a Tango Array Read-Only Value mapped to table 'att_array_devstring_ro'
-    """
-    __tablename__ = 'att_array_devstring_ro'
-    __table_args__ = {'extend_existing': True}
-    
-    def __repr__(self):
-        return f"<Array_String_RO(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-class Array_String_RW(Array_String):
-    """
-    Class that represents a Tango Array Read-Write Value mapped to table 'att_array_devstring_rw'
-    """
-    __tablename__ = 'att_array_devstring_rw'
-    __table_args__ = {'extend_existing': True}
-    dim_x_w = Column(Integer)
-    dim_y_w = Column(Integer)
-    value_w = Column(String)
-
-    def __repr__(self):
-        return f"<Array_String_RW(att_conf_id='{self.att_conf_id}',data_time='{self.data_time}',recv_time='{self.recv_time}',insert_time='{self.insert_time}',idx='{self.idx}',dim_x_r='{self.dim_x_r}',dim_y_r='{self.dim_y_r}',value_r='{self.value_r}',dim_x_w='{self.dim_x_w}',dim_y_w='{self.dim_y_w}',value_w='%{self.value_w},quality='{self.quality}',att_error_desc_id='{self.att_error_desc_id}')>"
-
-def get_class_by_tablename(tablename: str):
-    """
-    Returns class reference mapped to a table.    
-    """
-    for mapper in Base.registry.mappers:
-        c = mapper.class_
-        classname = c.__name__
-        if not classname.startswith('_'):
-            if hasattr(c, '__tablename__') and c.__tablename__ == tablename:
-                return c
-    return None
-
-def build_array_from_record(rows: List[Array], dim_x: int):
-    """
-    Converts Array database items in Python lists
-    """
-    matrix = numpy.array([])
-    for i in range(0,dim_x):
-        x = numpy.array([item for item in rows if item.idx==i]) #group records by array index
-        if i==0:
-            matrix = numpy.append(matrix,x)    #append first row
-        else:
-            matrix = numpy.vstack([matrix,x])  #stack vertically
-    result = numpy.transpose(matrix)   #transpose -> each row is a distinct array of value
-    list_result = result.tolist()
-    return list_result
-    
-def get_values_from_record(data_matrix: List[Array]):
-    """
-    Returns a matrix of values from a matrix of Array records
-    """
-    array_matrix = numpy.matrix(data_matrix)
-    value_matrix = numpy.empty(array_matrix.shape)
-    for index in range(array_matrix.size):    # for each object element
-        value_matrix.itemset(index,array_matrix.item(index).value_r) # extract the value from object and put in the matrix
-    return value_matrix
-
diff --git a/tangostationcontrol/tangostationcontrol/toolkit/retriever.py b/tangostationcontrol/tangostationcontrol/toolkit/retriever.py
index 5c7426dbe41faf4ecd6d2498c809097335d107d5..f9b996480ca4372aa4d7da3e74b3b045b718623f 100644
--- a/tangostationcontrol/tangostationcontrol/toolkit/retriever.py
+++ b/tangostationcontrol/tangostationcontrol/toolkit/retriever.py
@@ -119,102 +119,6 @@ class Retriever(ABC):
             raise ValueError(f"Attribute {attribute_fqname} not found!") from e
         return result
 
-class RetrieverMySQL(Retriever):
-    
-    def __init__(self, cm_name: str = 'archiving/hdbpp/confmanager01'):
-        self.cm_name = cm_name
-
-        super().__init__()
-    
-    def connect_to_archiving_db(self):
-        """
-        Returns a session to a MySQL DBMS using default credentials.
-        """
-        creds = get_db_config(self.cm_name)
-
-        # Set sqlalchemy library connection
-        if creds["host"] == 'archiver-maria-db':
-            creds["libname"] = 'mysql+pymysql'         
-        else:
-            raise ValueError(f"Invalid hostname: {creds['host']}, we only support 'archiver-maria-db'")
-
-        Session = self.create_session(creds)
-        return Session()
-    
-    def set_archiver_base(self):
-        """
-        Sets the right mapper class following the DBMS connection
-        """    
-        return importlib.import_module('.archiver_base_mysql', package=__package__)
-    
-    def get_attribute_datatype(self,attribute_fqname: str):
-        """
-        Takes as input the fully-qualified name of an attribute and returns its Data-Type.
-        Data Type name indicates the type (e.g. string, int, ...) and the read/write property. The name is used
-        as DB table name suffix in which values are stored.
-        """
-        domain, family, member, name = split_tango_name(attribute_fqname,"attribute")
-        try:
-            result = self.session.query(self.ab.DataType.data_type).join(self.ab.Attribute,self.ab.Attribute.att_conf_data_type_id==self.ab.DataType.att_conf_data_type_id).\
-                        filter(and_(self.ab.Attribute.domain == domain, self.ab.Attribute.family == family, self.ab.Attribute.member == member, self.ab.Attribute.name == name)).one()
-            return result[0]
-        except (AttributeError, TypeError, NoResultFound) as e:
-            raise ValueError(f"Attribute {attribute_fqname} not found!") from e
-    
-    def get_attribute_value_by_hours(self,attribute_fqname: str, hours: float = 1.0):
-        """
-        Takes as input the attribute fully-qualified name and the number of past hours since the actual time 
-        (e.g. hours=1 retrieves values in the last hour, hours=8.5 retrieves values in the last eight hours and half).
-        Returns a list of timestamps and a list of values
-        """
-        attr_datatype = self.get_attribute_datatype(attribute_fqname)
-        # Retrieves the class that maps the DB table given the tablename
-        tablename = f"att_{attr_datatype}"
-        return super().get_attribute_value_by_hours(attribute_fqname,hours,tablename) 
-
-
-    def get_attribute_value_by_interval(self,attribute_fqname: str, start_time: datetime, stop_time: datetime):
-        """
-        Takes as input the attribute name and a certain starting and ending point-time. 
-        The datetime format is pretty flexible (e.g. "YYYY-MM-dd hh:mm:ss").
-        Returns a list of timestamps and a list of values
-        """
-        attr_datatype = self.get_attribute_datatype(attribute_fqname)
-        # Retrieves the class that maps the DB table given the tablename
-        tablename = f"att_{attr_datatype}"           
-        return super().get_attribute_value_by_interval(attribute_fqname,start_time,stop_time,tablename)
-    
-    # DRAFT #
-    def get_masked_fpga_temp(self,start_time: datetime, stop_time: datetime,temp_attr_name:str='stat/sdp/1/fpga_temp_r',
-                    mask_attr_name:str='stat/sdp/1/tr_fpga_mask_r'):
-        """
-        Returns a list of SDP/fpga_temp_r values, but only if SDP/tr_fpga_mask_r values are TRUE
-        """
-        mask_values = self.get_attribute_value_by_interval(mask_attr_name,start_time,stop_time)
-        temp_values = self.get_attribute_value_by_interval(temp_attr_name,start_time,stop_time)
-        # Since timestamps can be not syncrhonized, remove first or last element from arrays
-        if len(mask_values)==len(temp_values):
-            first_mask_datatime = mask_values[0].data_time
-            first_temp_datatime = temp_values[0].data_time
-            if (first_mask_datatime>first_temp_datatime):
-                mask_values = mask_values[:-int(mask_values[0].dim_x_r)]
-                temp_values = temp_values[int(temp_values[0].dim_x_r):]
-            elif (first_mask_datatime<first_temp_datatime):
-                mask_values = mask_values[int(mask_values[0].dim_x_r)]
-                temp_values = temp_values[:-int(temp_values[0].dim_x_r):]
-        else:
-            raise Exception
-        # Convert DB Array records into Python lists
-        mask_data = self.ab.build_array_from_record(mask_values,mask_values[0].dim_x_r)
-        temp_data = self.ab.build_array_from_record(temp_values,temp_values[0].dim_x_r)
-        # Extract only the value from the array 
-        mask_array_values = self.ab.get_values_from_record(mask_data)
-        temp_array_values = self.ab.get_values_from_record(temp_data)
-        # Multiply the matrix
-        #masked_values = np.multiply(temp_array_values,mask_array_values)
-        masked_values = numpy.ma.masked_array(temp_array_values,mask=numpy.invert(mask_array_values.astype(bool)))
-        return masked_values, mask_values, temp_values
-
 class RetrieverTimescale(Retriever):
     
     def __init__(self, cm_name: str = 'archiving/hdbppts/confmanager01'):