format_datetime fails with +00:00 not found in timezone database

[mbasmanova]

Bug description

TEST_F(DateTimeFunctionsTest, xxx) {
  auto r = evaluateOnce<std::string>(
      "format_datetime(from_unixtime(0.0, 'UTC'), 'yyyy-MM-dd HH:mm:ss')",
      std::optional(123));

  ASSERT_TRUE(r.has_value());
  LOG(ERROR) << r.value();
}

[ RUN      ] DateTimeFunctionsTest.xxx

terminate called after throwing an instance of 'facebook::velox::VeloxUserError'
  what():  Exception: VeloxUserError
Error Source: USER
Error Code: INVALID_ARGUMENT
Reason: +00:00 not found in timezone database
Retriable: False
Context: Top-level Expression: format_datetime(0:TIMESTAMP WITH TIME ZONE, yyyy-MM-dd HH:mm:ss:VARCHAR)

Similar errors:

• Etc/GMT+7: -07:00 not found in timezone database
• Etc/GMT+8: +08:00 not found in timezone database

They come from date::locate_zone("+00:00").

CC: @pedroerp @amitkdutta

System information

n/a

Relevant logs

No response

[PHILO-HE]

FYI. Quote:
"date::locate_zone() only recognizes IANA time zone names. Here is a list of the IANA time zone names:
https://en.wikipedia.org/wiki/List_of_tz_database_time_zones"

Source HowardHinnant/date#823 (comment).

[mbasmanova]

@pedroerp Pedro, any update on this?

[pedroerp]

@pedroerp Pedro, any update on this?

I haven't had the time to start on this yet. Unless anyone has bandwidth to take this first, my plan is to start early next week.

[pedroerp]

This is the last one to address this Issue:

#10606