code: @Override
      public Object[] findIdsByColumn(String schemaName, String tableName, String pKeyName, String columnName,
          Object columnValue, Class entityClazz) {
          EntityMetadata metadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClazz);
  
          return getColumnsById(schemaName, tableName, columnName,
              ((AbstractAttribute) metadata.getIdAttribute()).getJPAColumnName(), columnValue,
              metadata.getIdAttribute().getBindableJavaType()).toArray();
      }
docs: /*
  (non-Javadoc)
  
  @see com.impetus.kundera.client.Client#findIdsByColumn(java.lang.String, java.lang.String, java.lang.String,
  java.lang.String, java.lang.Object, java.lang.Class)