Function expect_string_array

nodedb-sql/src/planner/array_fn/helpers.rs:88–114

(expr: &ast::Expr, ctx: &str)

}

pub(super) fn expect_string_array(expr: &ast::Expr, ctx: &str) -> Result<Vec<String>> {
    let elems = match expr {
        ast::Expr::Array(arr) => arr.elem.clone(),
        ast::Expr::Function(f)
            if matches!(
                crate::parser::normalize::normalize_object_name_checked(&f.name)
                    .as_deref()
                    .unwrap_or(""),
                "make_array" | "array"
            ) =>
        {
            match &f.args {
                ast::FunctionArguments::List(list) => collect_args(&list.args),
                _ => Vec::new(),
            }
        }
        _ => {
            return Err(SqlError::Unsupported {
                detail: format!("{ctx}: expected array literal, got {expr}"),
            });
        }
    };
    elems
        .iter()
        .map(|e| expect_string_literal(e, ctx))
        .collect()
}

pub(super) fn is_null_literal(expr: &ast::Expr) -> bool {
    matches!(