feat: Add America/Coyhaique timezone support

Add America/Coyhaique (timezone ID 2234) to the timezone database and
timezone names, following the Presto zone-index convention. Also fix
the namespace in gen_timezone_database.py (util -> tz) to match the
current codebase.

America/Coyhaique was added to the IANA timezone database in tzdata
2025b. The upstream Presto PR (prestodb/presto#26981) has been merged.

Fixes #16216

Author: n0r0shi

velox/type/tz/TimeZoneDatabase.cpp

@@ -2265,6 +2265,7 @@ const std::vector<std::pair<int16_t, std::string>>& getTimeZoneEntries() {
         {2231, "Pacific/Kanton"},
         {2232, "Europe/Kyiv"},
         {2233, "America/Ciudad_Juarez"},
+        {2234, "America/Coyhaique"},
     };
   }());
   return *tzDB;

velox/type/tz/TimeZoneNames.cpp

@@ -1155,6 +1155,11 @@ const std::unordered_map<std::string, TimeZoneNames>& getTimeZoneNames() {
          {"Greenwich Mean Time", "GMT", "Greenwich Mean Time", "GMT"}},
         {"America/Costa_Rica",
          {"Central Standard Time", "CST", "Central Daylight Time", "CDT"}},
+        {"America/Coyhaique",
+         {"Coyhaique Standard Time",
+          "GMT-03:00",
+          "Coyhaique Daylight Time",
+          "GMT-03:00"}},
         {"America/Grand_Turk",
          {"Eastern Standard Time", "EST", "Eastern Daylight Time", "EDT"}},
         {"America/Guadeloupe",

velox/type/tz/gen_timezone_database.py

@@ -50,7 +50,7 @@
 #include <unordered_map>
 #include <vector>
 
-namespace facebook::velox::util {
+namespace facebook::velox::tz {
 
 const std::vector<std::pair<int16_t, std::string>>& getTimeZoneEntries() {
   static auto* tzDB = new std::vector<std::pair<int16_t, std::string>>([] {
@@ -64,7 +64,7 @@
   return *tzDB;
 }
 
-} // namespace facebook::velox::util\
+} // namespace facebook::velox::tz\
 """
 )
 

velox/type/tz/tests/TimeZoneMapTest.cpp

@@ -44,6 +44,7 @@ TEST(TimeZoneMapTest, locateZoneID) {
   EXPECT_EQ(2141, locateZoneID("Pacific/Marquesas"));
   EXPECT_EQ(2215, locateZoneID("Asia/Chita"));
   EXPECT_EQ(2233, locateZoneID("America/Ciudad_Juarez"));
+  EXPECT_EQ(2234, locateZoneID("America/Coyhaique"));
 }
 
 TEST(TimeZoneMapTest, locateZoneUTCAlias) {
@@ -165,6 +166,7 @@ TEST(TimeZoneMapTest, getTimeZoneName) {
   EXPECT_EQ("Pacific/Kanton", getTimeZoneName(2231));
   EXPECT_EQ("Europe/Kyiv", getTimeZoneName(2232));
   EXPECT_EQ("America/Ciudad_Juarez", getTimeZoneName(2233));
+  EXPECT_EQ("America/Coyhaique", getTimeZoneName(2234));
   EXPECT_EQ("-00:01", getTimeZoneName(840));
   EXPECT_EQ("UTC", getTimeZoneName(0));
 }
@@ -175,6 +177,7 @@ TEST(TimeZoneMapTest, getTimeZoneID) {
   EXPECT_EQ(2231, getTimeZoneID("Pacific/Kanton"));
   EXPECT_EQ(2232, getTimeZoneID("Europe/Kyiv"));
   EXPECT_EQ(2233, getTimeZoneID("America/Ciudad_Juarez"));
+  EXPECT_EQ(2234, getTimeZoneID("America/Coyhaique"));
   EXPECT_EQ(0, getTimeZoneID("UTC"));
   EXPECT_EQ(0, getTimeZoneID("GMT"));
   EXPECT_EQ(0, getTimeZoneID("Z"));