KevinYanesG commented on issue #21457:
URL: https://github.com/apache/airflow/issues/21457#issuecomment-1035099486
I actually already tried with `DROP TABLE <name>`, it didn't work either.
With
```bash
./airflow.sh airflow db shell <<EOF
DROP TABLE EMPLOYEES_TEMP IF EXISTS CASCADE;
DROP TABLE EMPLOYEES IF EXISTS CASCADE;
CREATE TABLE "Employees"
(
"Serial Number" NUMERIC PRIMARY KEY,
"Company Name" TEXT,
"Employee Markme" TEXT,
"Description" TEXT,
"Leave" INTEGER
);
CREATE TABLE "Employees_temp"
(
"Serial Number" NUMERIC PRIMARY KEY,
"Company Name" TEXT,
"Employee Markme" TEXT,
"Description" TEXT,
"Leave" INTEGER
);
EOF
```
After running the DAG I still get
```python
psycopg2.errors.UniqueViolation: duplicate key value violates unique
constraint "Employees_temp_pkey"
DETAIL: Key ("Serial Number")=(2) already exists.
CONTEXT: COPY Employees_temp, line 2
```
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