Issue: Unable to use SQLDatabaseChain with Falcon 7b Instruct for quering the postgresql database.
Labels: name: auto:question, name: area: models

### Issue you'd like to raise.

Hi Langchain Gurus,
I am trying to use SQLDatabaseChain to query and answer questions on postgresql table. so far the code that I have written uses following hugging face pipeline
```
model_name ='tiiuae/falcon-7b-instruct' 
tokenizer = AutoTokenizer.from_pretrained(model_name)
pipe = pipeline("question-answering", model=model_name, tokenizer=tokenizer, torch_dtype=bfloat16)
llm = HuggingFacePipeline(pipeline=pipe)
```

the prompt template looks like following
```
default_prompt = """You are a postgresql expert. Given an input question, first create a syntactically correct postgresql query to run, then look at the results of the query and return the answer to the input question.
            Unless the user specifies in the question a specific number of examples to obtain, query for at most {top_k} results using the LIMIT clause as per postgresql. You can order the results to return the most informative data in the database.
            Never query for all columns from a table. You must query only the columns that are needed to answer the question. Wrap each column name in double quotes (") to denote them as delimited identifiers.
            Pay attention to use only the column names you can see in the tables below. Be careful to not query for columns that do not exist. Also, pay attention to which column is in which table.
            Pay attention to use date('now') function to get the current date, if the question involves "today".

            Use the following format:

            Question: Question here
            SQLQuery: SQL Query to run
            SQLResult: Result of the SQLQuery
            Answer: Final answer here

            Only use the following tables:
            {table_info}

            Question: {question}
"""
```
post that I am using the SQLDatabaseChain like this

```
        database = SQLDatabase.from_uri(f"postgresql+psycopg2://{db_user}:{db_password}@{db_host}:5432/{db_name}")
        prompt_template = PromptTemplate.from_template(prompt_template)
        print("SQLDatabase loaded.")
        db_chain = SQLDatabaseChain.from_llm(llm, self.database, verbose=True)
        db_chain.run('How many records are available in flightData table')
```


running this throws error 

```
``
Use the following format:

Question: Question here
SQLQuery: SQL Query to run
SQLResult: Result of the SQLQuery
Answer: Final answer here

Only use the following tables:

CREATE TABLE "FlightData" (
        year BIGINT,
        month BIGINT,
        day BIGINT,
        dep_time DOUBLE PRECISION,
        sched_dep_time BIGINT,
        dep_delay DOUBLE PRECISION,
        arr_time DOUBLE PRECISION,
        sched_arr_time BIGINT,
        arr_delay DOUBLE PRECISION,
        carrier TEXT,
        flight BIGINT,
        tailnum TEXT,
        origin TEXT,
        dest TEXT,
        air_time DOUBLE PRECISION,
        distance BIGINT,
        hour BIGINT,
        minute BIGINT,
        time_hour TEXT
)

/*
3 rows from FlightData table:
year    month   day     dep_time        sched_dep_time  dep_delay       arr_time        sched_arr_time  arr_delay       carrier flight tailnum  origin  dest    air_time        distance        hour    minute  time_hour
2013    1       1       517.0   515     2.0     830.0   819     11.0    UA      1545    N14228  EWR     IAH     227.0   1400    5      15       1/1/2013 5:00
2013    1       1       533.0   529     4.0     850.0   830     20.0    UA      1714    N24211  LGA     IAH     227.0   1416    5      29       1/1/2013 5:00
2013    1       1       542.0   540     2.0     923.0   850     33.0    AA      1141    N619AA  JFK     MIA     160.0   1089    5      40       1/1/2013 5:00
*/

Question: How many records are available in flightData table
SQLQuery: argument needs to be of type (SquadExample, dict)
```



Requesting help /pointer on how I can I run this code without error and generate the correct answer?



### Suggestion:

_No response_