CREATE TABLE table_test_21 ("id" NUMBER, "gender" CLOB, "systolic_blood_pressure_sbp" NUMBER, "tachycardia" NUMBER, "body_weight" FLOAT, "renal_disease" BOOLEAN, "anaemia" BOOLEAN, "creatinine_clearance_cl" FLOAT, "estimated_glomerular_filtration_rate_egfr" NUMBER, "cardiogenic_shock" BOOLEAN, "history_of_dialysis" BOOLEAN, "prior_creatinine" FLOAT, "severe_bradycardia" BOOLEAN, "diastolic_blood_pressure_dbp" NUMBER, "hypotension" BOOLEAN, "heart_rate" NUMBER, "serum_creatinine" FLOAT, "hb" FLOAT, "renal_transplantation" BOOLEAN, "hypertension" BOOLEAN, "age" FLOAT, "NOUSE" FLOAT)

patients with acute or chronic renal impairment ( serum creatinine > 2 mg % or 200 mg / l or creatinine clearance < 30 ml / min ) ;
SELECT * FROM table_test_21 WHERE renal_disease = 1 OR renal_disease = 1 OR serum_creatinine > 2 OR creatinine_clearance_cl < 30
SELECT * FROM "table_test_21" WHERE "creatinine_clearance_cl" < 30 OR "renal_disease" = 1 OR "serum_creatinine" > 2