class_docstr: This handler handles connection and execution of the PostgreSQL statements.
code: def __init__(self, name=None, **kwargs):
      super().__init__(name)
      self.parser = parse_sql
      self.connection_args = kwargs.get("connection_data")
      self.dialect = "postgresql"
      self.database = self.connection_args.get("database")
      self.renderer = SqlalchemyRender("postgres")
  
      self.connection = None
      self.is_connected = False
  
imports: from collections import OrderedDict
  import psycopg
  from psycopg.postgres import types
  from psycopg.pq import ExecStatus
  from pandas import DataFrame
  from mindsdb_sql import parse_sql
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.integrations.libs.base import DatabaseHandler
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  from mindsdb.utilities import log
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse, RESPONSE_TYPE
  import mindsdb.utilities.profiler
label_desc: Use image node_id 1 to create a new PostgresHandler object from inherited base classes: DatabaseHandler with example: obj = PostgresHandler(name)