Change GMT to Etc/GMT+0

Author: GLaDAP

common/src/main/java/org/ldbcouncil/snb/impls/workloads/converter/Converter.java

@@ -16,13 +16,13 @@ public class Converter {
 
     public String convertDateTime(Date date) {
         final SimpleDateFormat sdf = new SimpleDateFormat(DATETIME_FORMAT);
-        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
+        sdf.setTimeZone(TimeZone.getTimeZone("Etc/GMT+0"));
         return "'" + sdf.format(date) + "'";
     }
 
     public String convertDate(Date date) {
         final SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT);
-        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
+        sdf.setTimeZone(TimeZone.getTimeZone("Etc/GMT+0"));
         return "'" + sdf.format(date) + "'";
     }
 

duckdb/src/main/java/org/ldbcouncil/snb/impls/workloads/duckdb/DuckDbConnectionState.java

@@ -17,7 +17,7 @@ public class DuckDbConnectionState<TDbQueryStore extends QueryStore> extends Bas
 
     public DuckDbConnectionState(Map<String, String> properties, TDbQueryStore store) throws ClassNotFoundException, SQLException {
         super(properties, store);
-        TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
+        TimeZone.setDefault(TimeZone.getTimeZone("Etc/GMT+0"));
         connection = DriverManager.getConnection("jdbc:duckdb:scratch/ldbc.duckdb");
         Statement statement = connection.createStatement();
         statement.execute("PRAGMA threads=1;");

duckdb/src/main/java/org/ldbcouncil/snb/impls/workloads/duckdb/converter/DuckDbConverter.java

@@ -15,7 +15,7 @@ public class DuckDbConverter extends Converter {
     @Override
     public String convertDateTime(Date date) {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'+00:00'");
-        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
+        sdf.setTimeZone(TimeZone.getTimeZone("Etc/GMT+0"));
         return "'" + sdf.format(date) + "'::timestamp";
     }
 

postgres/config/postgresql.conf

@@ -25,9 +25,9 @@ max_parallel_maintenance_workers = 2
 listen_addresses = '*'
 dynamic_shared_memory_type = posix
 
-log_timezone = 'GMT'
+log_timezone = 'Etc/GMT+0'
 datestyle = 'iso, mdy'
-timezone = 'GMT'
+timezone = 'Etc/GMT+0'
 lc_messages = 'en_US.utf8'			# locale for system error message
 lc_monetary = 'en_US.utf8'			# locale for monetary formatting
 lc_numeric = 'en_US.utf8'			# locale for number formatting

postgres/docker-compose.yml

@@ -25,14 +25,13 @@ services:
       - POSTGRES_USER=${POSTGRES_USER}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
       - POSTGRES_DOCKER_PLATFORM_FLAG=${POSTGRES_DOCKER_PLATFORM_FLAG}
-      - tz=GMT
+      - tz=Etc/GMT+0
     command: [
       "postgres",
       "-c",
       "${POSTGRES_CUSTOM_ARGS}"
     ]
 
-
   db-load:
     build: ./scripts
     image: "postgres-db-loader:latest"
@@ -53,4 +52,5 @@ services:
       - WAIT_HOSTS=postgres-db:${POSTGRES_PORT}
       - WAIT_TIMEOUT=300
       - WAIT_SLEEP_INTERVAL=5
-      - WAIT_HOST_CONNECT_TIMEOUT=30
+      - WAIT_HOST_CONNECT_TIMEOUT=30
+      - tz=Etc/GMT+0

postgres/src/main/java/org/ldbcouncil/snb/impls/workloads/postgres/PostgresDbConnectionState.java

@@ -37,7 +37,7 @@ public PostgresDbConnectionState(Map<String, String> properties, TDbQueryStore s
     public Connection getConnection() throws DbException {
         Connection connection = null;
         try {
-            TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
+            TimeZone.setDefault(TimeZone.getTimeZone("Etc/GMT+0"));
             connection = ds.getConnection();
         } catch (SQLException e) {
             throw new DbException(e);

postgres/src/main/java/org/ldbcouncil/snb/impls/workloads/postgres/converter/PostgresConverter.java

@@ -20,7 +20,7 @@ public class PostgresConverter extends Converter {
     @Override
     public String convertDateTime(Date date) {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS");
-        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
+        sdf.setTimeZone(TimeZone.getTimeZone("Etc/GMT+0"));
         return "timestamp with time zone '" + sdf.format(date) + "'";
     }
 
@@ -97,7 +97,7 @@ public static Iterable<Long> convertLists(Iterable<List<Object>> arr) {
 
 
     public static long stringTimestampToEpoch(ResultSet r, int column) throws SQLException {
-        return r.getTimestamp(column, Calendar.getInstance(TimeZone.getTimeZone("GMT"))).getTime();
+        return r.getTimestamp(column, Calendar.getInstance(TimeZone.getTimeZone("Etc/GMT+0"))).getTime();
     }
 
 

tigergraph/src/main/java/org/ldbcouncil/snb/impls/workloads/tigergraph/connector/TigerGraphConverter.java

@@ -15,7 +15,7 @@ public class TigerGraphConverter {
     final static String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
     final static SimpleDateFormat sdf = new SimpleDateFormat(DATETIME_FORMAT);
     static {
-        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
+        sdf.setTimeZone(TimeZone.getTimeZone("Etc/GMT+0"));
     }
 
     public static Date parseDateTime(String representation) throws ParseException {

umbra/docker-compose.yml

@@ -17,7 +17,7 @@ services:
         source: ${UMBRA_DATABASE_DIR}
         target: /var/db/
     environment:
-      - tz=GMT
+      - tz=Etc/GMT+0
     command: [
       "/bin/sh",
       "-c",
@@ -45,4 +45,5 @@ services:
       - WAIT_HOSTS=umbra-db:5432
       - WAIT_TIMEOUT=300
       - WAIT_SLEEP_INTERVAL=5
-      - WAIT_HOST_CONNECT_TIMEOUT=30
+      - WAIT_HOST_CONNECT_TIMEOUT=30
+      - tz=Etc/GMT+0

umbra/src/main/java/org/ldbcouncil/snb/impls/workloads/umbra/UmbraDbConnectionState.java

@@ -38,7 +38,7 @@ public UmbraDbConnectionState(Map<String, String> properties, TDbQueryStore stor
     public Connection getConnection() throws DbException {
         Connection connection = null;
         try {
-            TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
+            TimeZone.setDefault(TimeZone.getTimeZone("Etc/GMT+0"));
             connection = ds.getConnection();
         } catch (SQLException e) {
             throw new DbException(e);