diff --git a/src/common/types/date_t.cpp b/src/common/types/date_t.cpp
index 3fd7561cfe6..b1d2fe9b162 100644
--- a/src/common/types/date_t.cpp
+++ b/src/common/types/date_t.cpp
@@ -390,13 +390,13 @@ int32_t Date::monthDays(int32_t year, int32_t month) {
     return Date::isLeapYear(year) ? Date::LEAP_DAYS[month] : Date::NORMAL_DAYS[month];
 }
 
-std::string Date::getDayName(date_t& date) {
+std::string Date::getDayName(date_t date) {
     std::string dayNames[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
         "Saturday"};
     return dayNames[(date.days < 0 ? 7 - ((-date.days + 3) % 7) : ((date.days + 3) % 7) + 1) % 7];
 }
 
-std::string Date::getMonthName(date_t& date) {
+std::string Date::getMonthName(date_t date) {
     std::string monthNames[] = {"January", "February", "March", "April", "May", "June", "July",
         "August", "September", "October", "November", "December"};
     int32_t year = 0, month = 0, day = 0;
@@ -404,7 +404,7 @@ std::string Date::getMonthName(date_t& date) {
     return monthNames[month - 1];
 }
 
-date_t Date::getLastDay(date_t& date) {
+date_t Date::getLastDay(date_t date) {
     int32_t year = 0, month = 0, day = 0;
     Date::convert(date, year, month, day);
     year += (month / 12);
@@ -413,7 +413,7 @@ date_t Date::getLastDay(date_t& date) {
     return Date::fromDate(year, month, 1) - 1;
 }
 
-int32_t Date::getDatePart(DatePartSpecifier specifier, date_t& date) {
+int32_t Date::getDatePart(DatePartSpecifier specifier, date_t date) {
     int32_t year = 0, month = 0, day = 0;
     Date::convert(date, year, month, day);
     switch (specifier) {
@@ -446,7 +446,7 @@ int32_t Date::getDatePart(DatePartSpecifier specifier, date_t& date) {
     }
 }
 
-date_t Date::trunc(DatePartSpecifier specifier, date_t& date) {
+date_t Date::trunc(DatePartSpecifier specifier, date_t date) {
     switch (specifier) {
     case DatePartSpecifier::YEAR:
         return Date::fromDate(Date::getDatePart(DatePartSpecifier::YEAR, date), 1 /* month */,
diff --git a/src/common/types/interval_t.cpp b/src/common/types/interval_t.cpp
index 9d9736372a8..cc66f7d5a77 100644
--- a/src/common/types/interval_t.cpp
+++ b/src/common/types/interval_t.cpp
@@ -420,7 +420,7 @@ void Interval::tryGetDatePartSpecifier(std::string specifier, DatePartSpecifier&
     }
 }
 
-int32_t Interval::getIntervalPart(DatePartSpecifier specifier, interval_t& interval) {
+int32_t Interval::getIntervalPart(DatePartSpecifier specifier, interval_t interval) {
     switch (specifier) {
     case DatePartSpecifier::YEAR:
         return interval.months / Interval::MONTHS_PER_YEAR;
diff --git a/src/common/types/timestamp_t.cpp b/src/common/types/timestamp_t.cpp
index 05418236f6a..d466c37171a 100644
--- a/src/common/types/timestamp_t.cpp
+++ b/src/common/types/timestamp_t.cpp
@@ -282,7 +282,7 @@ timestamp_t Timestamp::fromEpochNanoSeconds(int64_t ns) {
     return fromEpochMicroSeconds(ns / 1000);
 }
 
-int32_t Timestamp::getTimestampPart(DatePartSpecifier specifier, timestamp_t& timestamp) {
+int32_t Timestamp::getTimestampPart(DatePartSpecifier specifier, timestamp_t timestamp) {
     switch (specifier) {
     case DatePartSpecifier::MICROSECOND:
         return getTime(timestamp).micros % Interval::MICROS_PER_MINUTE;
@@ -303,7 +303,7 @@ int32_t Timestamp::getTimestampPart(DatePartSpecifier specifier, timestamp_t& ti
     }
 }
 
-timestamp_t Timestamp::trunc(DatePartSpecifier specifier, timestamp_t& timestamp) {
+timestamp_t Timestamp::trunc(DatePartSpecifier specifier, timestamp_t timestamp) {
     int32_t hour = 0, min = 0, sec = 0, micros = 0;
     date_t date;
     dtime_t time;
diff --git a/src/include/common/types/date_t.h b/src/include/common/types/date_t.h
index 576a3c623cd..5e92995a44c 100644
--- a/src/include/common/types/date_t.h
+++ b/src/include/common/types/date_t.h
@@ -99,15 +99,15 @@ class Date {
 
     KUZU_API static int32_t monthDays(int32_t year, int32_t month);
 
-    KUZU_API static std::string getDayName(date_t& date);
+    KUZU_API static std::string getDayName(date_t date);
 
-    KUZU_API static std::string getMonthName(date_t& date);
+    KUZU_API static std::string getMonthName(date_t date);
 
-    KUZU_API static date_t getLastDay(date_t& date);
+    KUZU_API static date_t getLastDay(date_t date);
 
-    KUZU_API static int32_t getDatePart(DatePartSpecifier specifier, date_t& date);
+    KUZU_API static int32_t getDatePart(DatePartSpecifier specifier, date_t date);
 
-    KUZU_API static date_t trunc(DatePartSpecifier specifier, date_t& date);
+    KUZU_API static date_t trunc(DatePartSpecifier specifier, date_t date);
 
     KUZU_API static int64_t getEpochNanoSeconds(const date_t& date);
 
diff --git a/src/include/common/types/interval_t.h b/src/include/common/types/interval_t.h
index e0d6da7670f..01b93aae2b3 100644
--- a/src/include/common/types/interval_t.h
+++ b/src/include/common/types/interval_t.h
@@ -105,7 +105,7 @@ class Interval {
     KUZU_API static void normalizeIntervalEntries(interval_t input, int64_t& months, int64_t& days,
         int64_t& micros);
     KUZU_API static void tryGetDatePartSpecifier(std::string specifier, DatePartSpecifier& result);
-    KUZU_API static int32_t getIntervalPart(DatePartSpecifier specifier, interval_t& timestamp);
+    KUZU_API static int32_t getIntervalPart(DatePartSpecifier specifier, interval_t timestamp);
     KUZU_API static int64_t getMicro(const interval_t& val);
     KUZU_API static int64_t getNanoseconds(const interval_t& val);
     KUZU_API static const regex::RE2& regexPattern1();
diff --git a/src/include/common/types/timestamp_t.h b/src/include/common/types/timestamp_t.h
index 790c99eaaaf..5af76fed99b 100644
--- a/src/include/common/types/timestamp_t.h
+++ b/src/include/common/types/timestamp_t.h
@@ -93,9 +93,9 @@ class Timestamp {
     // Create a Timestamp object from the specified epochNs.
     KUZU_API static timestamp_t fromEpochNanoSeconds(int64_t ns);
 
-    KUZU_API static int32_t getTimestampPart(DatePartSpecifier specifier, timestamp_t& timestamp);
+    KUZU_API static int32_t getTimestampPart(DatePartSpecifier specifier, timestamp_t timestamp);
 
-    KUZU_API static timestamp_t trunc(DatePartSpecifier specifier, timestamp_t& date);
+    KUZU_API static timestamp_t trunc(DatePartSpecifier specifier, timestamp_t date);
 
     KUZU_API static int64_t getEpochNanoSeconds(const timestamp_t& timestamp);
 
diff --git a/test/test_files/function/date.test b/test/test_files/function/date.test
index a1bb4fe865e..36cf49bf8b7 100644
--- a/test/test_files/function/date.test
+++ b/test/test_files/function/date.test
@@ -133,7 +133,7 @@ October
 October
 November
 
--LOG StructuredDateLastDayFuncTest
+-LOG DateLastDayFuncTest
 -STATEMENT MATCH (p:person) RETURN last_day(p.birthdate)
 ---- 8
 1900-01-31
@@ -145,6 +145,20 @@ November
 1980-10-31
 1990-11-30
 
+-LOG LastDayInFilter
+-STATEMENT MATCH (p:person) WHERE last_day(p.birthdate) > date('1940-06-30') RETURN p.birthdate
+---- 5
+1950-07-23
+1980-10-26
+1980-10-26
+1980-10-26
+1990-11-27
+
+-LOG DatePartWithFilterTest
+-STATEMENT MATCH (p:person) WHERE date_part("year", p.birthdate) > 1940 and date_part("year", p.birthdate) < 1976 RETURN p.fName
+---- 1
+Dan
+
 -LOG StructuredDateExtractYearFuncTest
 -STATEMENT MATCH (p:person) RETURN date_part("year", p.birthdate)
 ---- 8
@@ -325,7 +339,7 @@ November
 1980-10-01
 1990-10-01
 
--LOG StructuredDateTruncSecondFuncTest
+-LOG DateTruncSecondFuncTest
 -STATEMENT MATCH (p:person) RETURN date_trunc("second", p.birthdate)
 ---- 8
 1900-01-01
@@ -337,6 +351,16 @@ November
 1980-10-26
 1990-11-27
 
+-LOG DateTruncInFilter
+-STATEMENT MATCH (p:person) where date_trunc("second", p.birthdate) <> date('1900-01-01') RETURN p.birthdate
+---- 6
+1940-06-22
+1950-07-23
+1980-10-26
+1980-10-26
+1980-10-26
+1990-11-27
+
 -LOG StructuredDateGreatestFuncTest
 -STATEMENT MATCH (p:person) RETURN greatest(p.birthdate, date("1980-10-02"))
 ---- 8