Fixed CSV agent not working with OpenAI GPT

[Hariharan1828]

Pull Request Description:

This pull request addresses an issue #2341 encountered with the CSV agent in Flowise when processing CSV data containing prefixed column names. The issue manifested as an error preventing successful retrieval of information from the CSV file, specifically when querying for city data.

Changes Made:

Regex Function Implementation:
    Introduced a removePrefix function utilizing a regular expression pattern to remove any prefixes from column names. The regex pattern effectively targets and removes prefixes added by OpenAI to the column names in the CSV data.

Map Function Application:
    Applied the removePrefix function to each node's label property using the map function. This ensures that any prefixes present in the labels of the starting nodes are removed before they are added to the activeChatflows object.

Logger Info Enhancement:
    Added logging statements to provide visibility into the addition and removal of chatflows from the ChatflowPool. These statements aid in tracking the execution flow and monitoring the status of chatflows.

Expected Outcome:

With these changes, the prefixes from column names in the CSV data will be effectively removed, enabling the CSV agent to accurately process the data without encountering errors. This should resolve the issue described in the bug report, allowing for successful retrieval of city data from CSV files.

If there are any further questions or adjustments needed, please feel free to discuss them in the comments.

[Hariharan1828]

Opps, there is a lint error, let me fix

[HenryHengZJ]

thanks for the suggested fix!

why do we have the fix here though? I thought it should be in the CSVAgent.ts line 178 to check if the pythonCode contains any prefix

[Hariharan1828]

I thought of changing it directly from the Pool because not only CSV AGENT AirtableAgent also had same issue, but yes I do find changing from CSV AGENT is precise, will revert back and do he checks in both CSV and AirtableAgent