feat: useUTC connection option for oracle and postgres (#7295)

If useUTC is set to true, then for Oracle set environment variable 'ORA_SDTZ' and for postgres set ''PGTZ'

src/driver/oracle/OracleConnectionOptions.ts

@@ -16,6 +16,11 @@ export interface OracleConnectionOptions extends BaseConnectionOptions, OracleCo
      */
     readonly schema?: string;
 
+    /**
+    * A boolean determining whether to pass time values in UTC or local time. (default: true).
+    */
+    readonly useUTC?: boolean;
+
     /**
      * Replication setup.
      */

src/driver/oracle/OracleDriver.ts

@@ -216,6 +216,9 @@ export class OracleDriver implements Driver {
         this.connection = connection;
         this.options = connection.options as OracleConnectionOptions;
 
+        if (this.options.useUTC === true) {
+            process.env.ORA_SDTZ = 'UTC';
+        }
         // load oracle package
         this.loadDependencies();
 

src/driver/postgres/PostgresConnectionOptions.ts

@@ -16,6 +16,11 @@ export interface PostgresConnectionOptions extends BaseConnectionOptions, Postgr
      */
     readonly schema?: string;
 
+    /**
+    * A boolean determining whether to pass time values in UTC or local time. (default: true).
+    */
+    readonly useUTC?: boolean;
+
     /**
      * Replication setup.
      */

src/driver/postgres/PostgresDriver.ts

@@ -257,7 +257,9 @@ export class PostgresDriver implements Driver {
         this.connection = connection;
         this.options = connection.options as PostgresConnectionOptions;
         this.isReplicated = this.options.replication ? true : false;
-
+        if(this.options.useUTC) {
+            process.env.PGTZ = 'UTC';
+        }
         // load postgres package
         this.loadDependencies();