Predefined WHERE statements to NLSQLTableQueryEngine

[ashishsurya]

I want to add a set of WHERE statements to the generation of SQL Query by NLSQLTableQueryEngine

Can anyone help me how to achieve this

Thankyou

[dosubot[bot]]

Hey @ashishsurya! 👋 I'm here to help you out with any issues or questions you have. I'm a bot designed to assist you while waiting for a human maintainer.

To add a set of predefined WHERE statements to the generation of SQL queries by the NLSQLTableQueryEngine, you can modify the NLSQLRetriever initialization within the NLSQLTableQueryEngine class to include these WHERE statements in the context_query_kwargs parameter.

Here's an example of how you can do this:

class NLSQLTableQueryEngine(BaseSQLTableQueryEngine):
    """
    Natural language SQL Table query engine.

    Read NLStructStoreQueryEngine's docstring for more info on NL SQL.
    """

    def __init__(
        self,
        sql_database: SQLDatabase,
        text_to_sql_prompt: Optional[BasePromptTemplate] = None,
        context_query_kwargs: Optional[dict] = None,
        synthesize_response: bool = True,
        response_synthesis_prompt: Optional[BasePromptTemplate] = None,
        tables: Optional[Union[List[str], List[Table]]] = None,
        service_context: Optional[ServiceContext] = None,
        context_str_prefix: Optional[str] = None,
        sql_only: bool = False,
        verbose: bool = False,
        **kwargs: Any,
    ) -> None:
        """Initialize params."""
        # Add predefined WHERE statements to context_query_kwargs
        if context_query_kwargs is None:
            context_query_kwargs = {}
        context_query_kwargs['where_statements'] = "your_predefined_where_statements"

        self._sql_retriever = NLSQLRetriever(
            sql_database,
            text_to_sql_prompt=text_to_sql_prompt,
            context_query_kwargs=context_query_kwargs,
            tables=tables,
            context_str_prefix=context_str_prefix,
            service_context=service_context,
            sql_only=sql_only,
            verbose=verbose,
        )
        super().__init__(
            synthesize_response=synthesize_response,
            response_synthesis_prompt=response_synthesis_prompt,
            service_context=service_context,
            verbose=verbose,
            **kwargs,
        )

    @property
    def sql_retriever(self) -> NLSQLRetriever:
        """Get SQL retriever."""
        return self._sql_retriever

Replace "your_predefined_where_statements" with the actual SQL WHERE statements you want to include. This will ensure that every query generated by the NLSQLTableQueryEngine includes these predefined WHERE statements ^[1][2][3].

To continue talking to Dosu, mention @dosu.

[ashishsurya]

@dosu is this a valid fix

[dosubot[bot]]

Yes, the approach you outlined is valid. By adding predefined WHERE statements to the context_query_kwargs parameter during the initialization of the NLSQLRetriever within the NLSQLTableQueryEngine, you ensure that these statements are included in the SQL queries generated.

Here's a refined version of your code snippet:

class NLSQLTableQueryEngine(BaseSQLTableQueryEngine):
    """
    Natural language SQL Table query engine.

    Read NLStructStoreQueryEngine's docstring for more info on NL SQL.
    """

    def __init__(
        self,
        sql_database: SQLDatabase,
        text_to_sql_prompt: Optional[BasePromptTemplate] = None,
        context_query_kwargs: Optional[dict] = None,
        synthesize_response: bool = True,
        response_synthesis_prompt: Optional[BasePromptTemplate] = None,
        tables: Optional[Union[List[str], List[Table]]] = None,
        service_context: Optional[ServiceContext] = None,
        context_str_prefix: Optional[str] = None,
        sql_only: bool = False,
        verbose: bool = False,
        **kwargs: Any,
    ) -> None:
        """Initialize params."""
        # Add predefined WHERE statements to context_query_kwargs
        if context_query_kwargs is None:
            context_query_kwargs = {}
        context_query_kwargs['where_statements'] = "your_predefined_where_statements"

        self._sql_retriever = NLSQLRetriever(
            sql_database,
            text_to_sql_prompt=text_to_sql_prompt,
            context_query_kwargs=context_query_kwargs,
            tables=tables,
            context_str_prefix=context_str_prefix,
            service_context=service_context,
            sql_only=sql_only,
            verbose=verbose,
        )
        super().__init__(
            synthesize_response=synthesize_response,
            response_synthesis_prompt=response_synthesis_prompt,
            service_context=service_context,
            verbose=verbose,
            **kwargs,
        )

    @property
    def sql_retriever(self) -> NLSQLRetriever:
        """Get SQL retriever."""
        return self._sql_retriever

Replace "your_predefined_where_statements" with the actual SQL WHERE statements you want to include. This will ensure that every query generated by the NLSQLTableQueryEngine includes these predefined WHERE statements ^[1][2].

To continue talking to Dosu, mention @dosu.

[ashishsurya]

@dosu it is not working

[dosubot[bot]]

To troubleshoot why the predefined WHERE statements are not working, ensure the context_query_kwargs parameter is correctly set and used within the NLSQLRetriever. Here’s a refined approach:

1. Ensure context_query_kwargs is correctly passed:
   Make sure the context_query_kwargs dictionary is properly initialized and includes the WHERE statements.

2. Verify the NLSQLRetriever usage:
   Confirm that the NLSQLRetriever is correctly utilizing the context_query_kwargs parameter.

Here’s an updated example:

class NLSQLTableQueryEngine(BaseSQLTableQueryEngine):
    """
    Natural language SQL Table query engine.

    Read NLStructStoreQueryEngine's docstring for more info on NL SQL.
    """

    def __init__(
        self,
        sql_database: SQLDatabase,
        text_to_sql_prompt: Optional[BasePromptTemplate] = None,
        context_query_kwargs: Optional[dict] = None,
        synthesize_response: bool = True,
        response_synthesis_prompt: Optional[BasePromptTemplate] = None,
        tables: Optional[Union[List[str], List[Table]]] = None,
        service_context: Optional[ServiceContext] = None,
        context_str_prefix: Optional[str] = None,
        sql_only: bool = False,
        verbose: bool = False,
        **kwargs: Any,
    ) -> None:
        """Initialize params."""
        # Add predefined WHERE statements to context_query_kwargs
        if context_query_kwargs is None:
            context_query_kwargs = {}
        context_query_kwargs['where'] = "your_predefined_where_statements"

        self._sql_retriever = NLSQLRetriever(
            sql_database,
            text_to_sql_prompt=text_to_sql_prompt,
            context_query_kwargs=context_query_kwargs,
            tables=tables,
            context_str_prefix=context_str_prefix,
            service_context=service_context,
            sql_only=sql_only,
            verbose=verbose,
        )
        super().__init__(
            synthesize_response=synthesize_response,
            response_synthesis_prompt=response_synthesis_prompt,
            service_context=service_context,
            verbose=verbose,
            **kwargs,
        )

    @property
    def sql_retriever(self) -> NLSQLRetriever:
        """Get SQL retriever."""
        return self._sql_retriever

Ensure that "your_predefined_where_statements" is a valid SQL WHERE clause. For example:

context_query_kwargs['where'] = "user_id = 1"

If the issue persists, check if the NLSQLRetriever class is correctly handling the context_query_kwargs parameter. You might need to debug or add logging to verify that the WHERE statements are being applied as expected ^[1][2].

To continue talking to Dosu, mention @dosu.