[GitHub] [arrow-datafusion] avantgardnerio opened a new issue, #4957: Split `create_logical_plan()` into parsing and planning

[GitBox <gi...@apache.org>]

avantgardnerio opened a new issue, #4957:
URL: https://github.com/apache/arrow-datafusion/issues/4957

   **Describe the bug**
   
   It's not really a bug, more of an API regression. When #4607 got merged, consumers of the DataFusion public API lost the ability to (easily) inspect or alter the AST of a SQL statement before it got planned. This is because the function that runs it became non-trivial in that it copies tables into a new context, so now the consumer would either have to duplicate the table copying logic, or go without.
   
   **To Reproduce**
   
   This used to work:
   
   ```
           let statements = DFParser::parse_sql(sql)?;
           let statements: Vec<_> = statements.into_iter().collect();
   
          // Do something with AST here
   
           let state = df_ctx.state();
           let planner = SqlToRel::new(&state);
           let plan = planner.statement_to_plan(stmt).map_err(|e| err!("", e))?;
           let df = Arc::new(DataFrame::new(df_ctx.state(), plan));
   ```
   
   But now it yields: `ContextProvider not implented for SessionState`
   
   **Expected behavior**
   
   A way to parse, manipulate AST, then plan separately.
   


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[GitHub] [arrow-datafusion] avantgardnerio closed issue #4957: Split `create_logical_plan()` into parsing and planning

[GitBox <gi...@apache.org>]

avantgardnerio closed issue #4957: Split `create_logical_plan()` into parsing and planning
URL: https://github.com/apache/arrow-datafusion/issues/4957


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