code: public SqlRepositoryBuilder withSchema(String schemaName) {
          if (schemaName != null && !schemaName.isEmpty()) {
              this.schemaName = schemaName;
          }
          return this;
      }
docs: This function sets a schema to be used for creation and updating tables. When passing a schema name make sure
  that the schema has been created in the database before running JaVers. If schemaName is null or empty, the default
  schema is used instead.
  
  @since 2.4