import pandas as pd
q1= ("SELECT * FROM dzlog WHERE ullid=49876996433 AND sheetid=6394503;")
engine = create_engine('pgfdw://postgres:test@123@localhost:5432/mydb')
connection = engine.connect()
pd.read_sql(q1, connection)

q2=("SELECT * from sheetheight WHERE ullid=49876883285 AND sheetid=6391745;")
engine = create_engine('pgfdw://postgres:test@123@localhost:5432/mydb')
connection = engine.connect()
pd.read_sql(q2, connection)

import psycopg2
connection = psycopg2.connect("dbname='mydb' user='qfsa' host='localhost' password='123' port=5433")
cursor=connection.cursor()
pd.read_sql(q1,cursor)

df=pd.read_csv('.sourcessheetHeight.csv', delimiter=',')
df.loc[(df['ullid']==49876883285 ) & (df['sheetid'==6391745)]

import timit
start_time = timeit.default_timer()
...Execution of query...
elapsed = timeit.default_timer()-start_time