From 4c7226627c9155e0297a962c77b93dc4a75ab927 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Thu, 10 Jul 2014 22:53:09 +0400
Subject: [PATCH] dbms: fixed error with formatting of date-times with
 1970-01-01 dates [#METR-11873].

---
 .../0_stateless/00060_date_lut.reference      |  1 +
 .../queries/0_stateless/00060_date_lut.sql    |  1 +
 libs/libcommon/src/tests/date_lut4.cpp        | 20 +++++++++++++++++++
 3 files changed, 22 insertions(+)
 create mode 100644 dbms/tests/queries/0_stateless/00060_date_lut.reference
 create mode 100644 dbms/tests/queries/0_stateless/00060_date_lut.sql
 create mode 100644 libs/libcommon/src/tests/date_lut4.cpp

diff --git a/dbms/tests/queries/0_stateless/00060_date_lut.reference b/dbms/tests/queries/0_stateless/00060_date_lut.reference
new file mode 100644
index 00000000000..aad30111128
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00060_date_lut.reference
@@ -0,0 +1 @@
+1970-01-01 14:25:36
diff --git a/dbms/tests/queries/0_stateless/00060_date_lut.sql b/dbms/tests/queries/0_stateless/00060_date_lut.sql
new file mode 100644
index 00000000000..1209be85fc5
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00060_date_lut.sql
@@ -0,0 +1 @@
+SELECT toString(toDateTime('1970-01-01 14:25:36'))
diff --git a/libs/libcommon/src/tests/date_lut4.cpp b/libs/libcommon/src/tests/date_lut4.cpp
new file mode 100644
index 00000000000..0c6bcc82718
--- /dev/null
+++ b/libs/libcommon/src/tests/date_lut4.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+#include <Yandex/DateLUT.h>
+
+
+int main(int argc, char ** argv)
+{
+	/** В DateLUT был глюк - для времён из дня 1970-01-01, возвращался номер часа больше 23. */
+	static const time_t TIME = 66130;
+
+	DateLUT & date_lut = DateLUT::instance();
+
+	std::cerr << date_lut.toHourInaccurate(TIME) << std::endl;
+	std::cerr << date_lut.toDayNum(TIME) << std::endl;
+
+	const DateLUT::Values * values = reinterpret_cast<const DateLUT::Values *>(&date_lut);
+
+	std::cerr << values[0].date << ", " << time_t(values[1].date - values[0].date) << std::endl;
+
+	return 0;
+}