From ae1252faae301277f7390e681128c2a18520a725 Mon Sep 17 00:00:00 2001
From: Kunlin Yu <yukunlin@syriusrobotics.com>
Date: Tue, 31 Dec 2024 12:20:40 +0800
Subject: [PATCH] Remove NullValue if the left hand side of IN is null

Signed-off-by: Kunlin Yu <yukunlin@syriusrobotics.com>
---
 include/cql2cpp/node_evaluator.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/cql2cpp/node_evaluator.h b/include/cql2cpp/node_evaluator.h
index fd32706..0215e83 100644
--- a/include/cql2cpp/node_evaluator.h
+++ b/include/cql2cpp/node_evaluator.h
@@ -115,6 +115,10 @@ const std::map<NodeType, std::map<Operator, NodeEval>> node_evals = {
                   std::to_string(n->children().size());
               return false;
             }
+            if (std::holds_alternative<NullStruct>(vs.at(0))) {
+              *value = NullValue;
+              return true;
+            }
             if (not std::holds_alternative<bool>(vs.at(0)) and
                 not std::holds_alternative<int64_t>(vs.at(0)) and
                 not std::holds_alternative<uint64_t>(vs.at(0)) and