fix: postgres columns with timezone

Add timezone for the columns creation_date and update_date, otherwise
it's difficult to compare the times correctly in the unit test.

Furthermore the default value of the creation_date will now be defined
by the postgres implementation of the database interface.

pkg/repository/db/postgres/createTableDevices.sql

@@ -2,6 +2,6 @@ CREATE TABLE IF NOT EXISTS devices (
   device_id               CHAR(36)                                                CONSTRAINT pk_devices PRIMARY KEY,
   device_name             VARCHAR(64)                                             NOT NULL,
   device_location         VARCHAR(64),
-  creation_date           TIMESTAMP                   DEFAULT CURRENT_TIMESTAMP   NOT NULL,
-  update_date             TIMESTAMP
+  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
+  update_date             TIMESTAMP WITH TIME ZONE
 );

pkg/repository/db/postgres/createTableHumidities.sql

@@ -1,10 +1,10 @@
 CREATE TABLE IF NOT EXISTS humidities (
   id                      CHAR(36)                                                CONSTRAINT pk_humidities PRIMARY KEY,
   value                   NUMERIC(10,3)                                           NOT NULL,
-  date                    TIMESTAMP                                               NOT NULL,
+  date                    TIMESTAMP WITH TIME ZONE                                               NOT NULL,
   sensor_id               CHAR(36)                                                NOT NULL,
-  creation_date           TIMESTAMP                   DEFAULT CURRENT_TIMESTAMP   NOT NULL,
-  update_date             TIMESTAMP
+  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
+  update_date             TIMESTAMP WITH TIME ZONE
 );
 
 ALTER TABLE humidities

pkg/repository/db/postgres/createTablePressures.sql

@@ -1,10 +1,10 @@
 CREATE TABLE IF NOT EXISTS pressures (
   id                      CHAR(36)                                                CONSTRAINT pk_pressures PRIMARY KEY,
   value                   NUMERIC(10,3)                                           NOT NULL,
-  date                    TIMESTAMP                                               NOT NULL,
+  date                    TIMESTAMP WITH TIME ZONE                                NOT NULL,
   sensor_id               CHAR(36)                                                NOT NULL,
-  creation_date           TIMESTAMP                   DEFAULT CURRENT_TIMESTAMP   NOT NULL,
-  update_date             TIMESTAMP
+  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
+  update_date             TIMESTAMP WITH TIME ZONE
 );
 
 ALTER TABLE pressures

pkg/repository/db/postgres/createTableSensors.sql

@@ -10,8 +10,8 @@ CREATE TABLE IF NOT EXISTS sensors (
   sensor_enabled          BOOLEAN                     DEFAULT TRUE                NOT NULL,
   tick_duration           VARCHAR(6)                                              NOT NULL,
   device_id               CHAR(36)                                                NOT NULL,
-  creation_date           TIMESTAMP                   DEFAULT CURRENT_TIMESTAMP   NOT NULL,
-  update_date             TIMESTAMP
+  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
+  update_date             TIMESTAMP WITH TIME ZONE
 );
 
 ALTER TABLE sensors

pkg/repository/db/postgres/createTableTemperatures.sql

@@ -1,10 +1,10 @@
 CREATE TABLE IF NOT EXISTS temperatures (
   id                      CHAR(36)                                                CONSTRAINT pk_temperatures PRIMARY KEY,
   value                   NUMERIC(10,3)                                           NOT NULL,
-  date                    TIMESTAMP                                               NOT NULL,
+  date                    TIMESTAMP WITH TIME ZONE                                NOT NULL,
   sensor_id               CHAR(36)                                                NOT NULL,
-  creation_date           TIMESTAMP                   DEFAULT CURRENT_TIMESTAMP   NOT NULL,
-  update_date             TIMESTAMP
+  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
+  update_date             TIMESTAMP WITH TIME ZONE
 );
 
 ALTER TABLE temperatures

pkg/repository/db/postgres/selectSensor.sql

@@ -15,4 +15,6 @@ SELECT
 FROM
   sensors
 WHERE
-  sensor_id = $1;
+  sensor_id = $1
+ORDER BY
+  sensor_name ASC;