Method fmt_verbose_syntax

src/expr/src/explain/text.rs:340–911

(
        &self,
        f: &mut fmt::Formatter<'_>,
        ctx: &mut PlanRenderingContext<'_, MirRelationExpr>,
    )

    }

    fn fmt_verbose_syntax(
        &self,
        f: &mut fmt::Formatter<'_>,
        ctx: &mut PlanRenderingContext<'_, MirRelationExpr>,
    ) -> fmt::Result {
        use MirRelationExpr::*;

        let mode = HumanizedExplain::new(ctx.config.redacted);

        match &self {
            Constant { rows, typ: _ } => match rows {
                Ok(rows) => {
                    if !rows.is_empty() {
                        write!(f, "{}Constant", ctx.indent)?;
                        self.fmt_analyses(f, ctx)?;
                        ctx.indented(|ctx| {
                            fmt_text_constant_rows(
                                f,
                                rows.iter().map(|(x, y)| (x, y)),
                                &mut ctx.indent,
                                mode.redacted(),
                            )
                        })?;
                    } else {
                        write!(f, "{}Constant <empty>", ctx.indent)?;
                        self.fmt_analyses(f, ctx)?;
                    }
                }
                Err(err) => {
                    if mode.redacted() {
                        writeln!(f, "{}Error █", ctx.indent)?;
                    } else {
                        writeln!(f, "{}Error {}", ctx.indent, err.to_string().escaped())?;
                    }
                }
            },
            Let { id, value, body } => {
                let mut bindings = vec![(id, value.as_ref())];
                let mut head = body.as_ref();

                // Render Let-blocks nested in the body an outer Let-block in one step
                // with a flattened list of bindings
                while let Let { id, value, body } = head {
                    bindings.push((id, value.as_ref()));
                    head = body.as_ref();
                }

                if ctx.config.linear_chains {
                    writeln!(f, "{}With", ctx.indent)?;
                    ctx.indented(|ctx| {
                        for (id, value) in bindings.iter() {
                            writeln!(f, "{}cte {} =", ctx.indent, *id)?;
                            ctx.indented(|ctx| value.fmt_text(f, ctx))?;
                        }
                        Ok(())
                    })?;
                    write!(f, "{}Return", ctx.indent)?;
                    self.fmt_analyses(f, ctx)?;