Fix nested function calls in WHERE clause

src/CosmosDB.InMemoryEmulator.JsTriggers/CosmosDB.InMemoryEmulator.JsTriggers.csproj

@@ -7,7 +7,7 @@
 		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 		<IsPackable>true</IsPackable>
 		<PackageId>CosmosDB.InMemoryEmulator.JsTriggers</PackageId>
-		<Version>2.0.183</Version>
+		<Version>2.0.185</Version>
 		<Authors>lemonlion</Authors>
 		<Description>JavaScript trigger body interpretation for CosmosDB.InMemoryEmulator. Uses Jint to execute real Cosmos DB trigger JavaScript (getContext, getRequest, getResponse, getBody, setBody) inside your in-memory tests.</Description>
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>

src/CosmosDB.InMemoryEmulator.ProductionExtensions/CosmosDB.InMemoryEmulator.ProductionExtensions.csproj

@@ -7,7 +7,7 @@
 		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 		<IsPackable>true</IsPackable>
 		<PackageId>CosmosDB.InMemoryEmulator.ProductionExtensions</PackageId>
-		<Version>2.0.183</Version>
+		<Version>2.0.185</Version>
 		<Description>Production-safe extension methods for Azure Cosmos DB that enable seamless in-memory testing via CosmosDB.InMemoryEmulator.</Description>
 		<AzureCosmosDisableNewtonsoftJsonCheck>true</AzureCosmosDisableNewtonsoftJsonCheck>
 	</PropertyGroup>

src/CosmosDB.InMemoryEmulator/CosmosDB.InMemoryEmulator.csproj

@@ -7,7 +7,7 @@
 		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 		<IsPackable>true</IsPackable>
 		<PackageId>CosmosDB.InMemoryEmulator</PackageId>
-		<Version>2.0.183</Version>
+		<Version>2.0.185</Version>
 		<Authors>lemonlion</Authors>
 		<Description>A high-fidelity, in-memory implementation of the Azure Cosmos DB SDK for .NET — purpose-built for fast, reliable component and integration testing. Drop-in replacements for CosmosClient, Container, and Database with full CRUD, SQL queries, LINQ, patch, bulk operations, batches, change feed, fault injection, and DI integration. Zero production code changes required with FakeCosmosHandler.</Description>
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>

src/CosmosDB.InMemoryEmulator/CosmosSqlParser.cs

@@ -969,6 +969,24 @@ public static WhereExpression ToWhereExpression(SqlExpression expr)
                     return new SqlExpressionCondition(func);
                 }
 
+                var hasNestedFunctions = func.Arguments.Any(ContainsFunctionCall);
+                if (hasNestedFunctions)
+                {
+                    return new SqlExpressionCondition(func);
+                }
+
+                var hasArithmetic = func.Arguments.Any(ContainsArithmetic);
+                if (hasArithmetic)
+                {
+                    return new SqlExpressionCondition(func);
+                }
+
+                var hasComplexExpressions = func.Arguments.Any(ContainsComplexExpression);
+                if (hasComplexExpressions)
+                {
+                    return new SqlExpressionCondition(func);
+                }
+
                 if (LegacyFunctionNames.Contains(func.FunctionName))
                 {
                     var args = func.Arguments.Select(ExprToString).ToArray();

src/CosmosDB.InMemoryEmulator/InMemoryContainer.cs

@@ -5860,6 +5860,11 @@ private static bool EvaluateFunction(
                         return jArray.Any(t => t.Type == JTokenType.Null);
                     }
 
+                    if (searchValue is UndefinedValue)
+                    {
+                        return false;
+                    }
+
                     var searchStr = searchValue.ToString();
                     var partial = func.Arguments.Length >= 3 &&
                         string.Equals(func.Arguments[2].Trim(), "true", StringComparison.OrdinalIgnoreCase);
@@ -6210,7 +6215,7 @@ and not "FULLTEXTSCORE" and not "FULLTEXTCONTAINS" and not "FULLTEXTCONTAINSALL"
                     // (even when its value is null).
                     if (func.Arguments[0] is ParameterExpression param)
                         return parameters.ContainsKey(param.Name);
-                    return args[0] != null;
+                    return args[0] is not null and not UndefinedValue;
                 }
             case "IS_NULL": return args.Length > 0 && args[0] is null;
             case "IS_ARRAY":
@@ -6720,6 +6725,11 @@ and not "FULLTEXTSCORE" and not "FULLTEXTCONTAINS" and not "FULLTEXTCONTAINSALL"
                             return jArray.Any(t => t.Type == JTokenType.Null);
                         }
 
+                        if (searchValue is UndefinedValue)
+                        {
+                            return false;
+                        }
+
                         var searchStr = searchValue.ToString();
                         return ArrayContainsMatch(jArray, searchStr, partial);
                     }