From 1b9531e58014826dea1e300ffe6a4f7c97ca899c Mon Sep 17 00:00:00 2001
From: Ran Tao <chucheng.tr@gmail.com>
Date: Thu, 26 Oct 2023 12:39:56 +0800
Subject: [PATCH] Add UT for leastRestrictive

---
 .../main/java/org/apache/calcite/test/SqlOperatorTest.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java b/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java
index 29d311153888..3a5f14fd51e1 100644
--- a/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java
+++ b/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java
@@ -10534,6 +10534,8 @@ private static void checkArrayConcatAggFuncFails(SqlOperatorFixture t) {
         "Map requires an even number of arguments", false);
     f1.checkFails("^map(1, 1, 2, 'x')^",
         "Parameters must be of the same type", false);
+    f1.checkFails("^MAP('k1', 1, 'k2', 2.0, 'k3', '3')^",
+        "Parameters must be of the same type", false);
     // this behavior is different from std MapValueConstructor
     f1.checkScalar("map()",
         "{}",
@@ -10550,6 +10552,9 @@ private static void checkArrayConcatAggFuncFails(SqlOperatorFixture t) {
     f1.checkScalar("map('washington', 1, 'obama', 44)",
         "{washington=1, obama=44}",
         "(CHAR(10) NOT NULL, INTEGER NOT NULL) MAP NOT NULL");
+    f1.checkScalar("map('k1', 1, 'k2', 2.0)",
+        "{k1=1, k2=2.0}",
+        "(CHAR(2) NOT NULL, DECIMAL(11, 1) NOT NULL) MAP NOT NULL");
   }
 
   @Test void testCeilFunc() {