STL_LOAD_ERRORS
Displays the records of all Amazon Redshift load errors.
STL_LOAD_ERRORS contains a history of all Amazon Redshift load errors. See Load Error Reference for a comprehensive list of possible load errors and explanations.
Query STL_LOADERROR_DETAIL for additional details, such as the exact data row and column where a parse error occurred, after you query STL_LOAD_ERRORS to find out general information about the error.
This table is visible to all users. Superusers can see all rows; regular users can see only their own data. For more information, see Visibility of Data in System Tables and Views.
Table Columns
| Column Name | Data Type | Description |
|---|---|---|
| userid | integer | ID of the user who generated the entry. |
| slice | integer | Slice where the error occurred. |
| tbl | integer | Table ID. |
| starttime | timestamp | Start time in UTC for the load. |
| session | integer | Session ID for the session performing the load. |
| query | integer | Query ID. The query column can be used to join other system tables and views. |
| filename | character(256) | Complete path to the input file for the load. |
| line_number | bigint | Line number in the load file with the error. For COPY from JSON, the line number of the last line of the JSON object with the error. |
| colname | character(127) | Field with the error. |
| type | character(10) | Data Type of the field. |
| col_length | character(10) | Column length, if applicable. This field is populated when the data type has a limit length. For example, for a column with a data type of "character(3)", this column will contain the value "3". |
| position | integer | Position of the error in the field. |
| raw_line | character(1024) | Raw load data that contains the error. Multibyte characters in the load data are replaced with a period. |
| raw_field_value | char(1024) | The pre-parsing value for the field "colname" that lead to the parsing error. |
| err_code | integer | Error code. |
| err_reason | character(100) | Explanation for the error. |
Sample Queries
The following query joins STL_LOAD_ERRORS to STL_LOADERROR_DETAIL to view the details errors that occurred during the most recent load.
select d.query, substring(d.filename,14,20), d.line_number as line, substring(d.value,1,16) as value, substring(le.err_reason,1,48) as err_reason from stl_loaderror_detail d, stl_load_errors le where d.query = le.query and d.query = pg_last_copy_id(); query | substring | line | value | err_reason -------+-------------------+------+----------+---------------------------- 558| allusers_pipe.txt | 251 | 251 | String contains invalid or unsupported UTF8 code 558| allusers_pipe.txt | 251 | ZRU29FGR | String contains invalid or unsupported UTF8 code 558| allusers_pipe.txt | 251 | Kaitlin | String contains invalid or unsupported UTF8 code 558| allusers_pipe.txt | 251 | Walter | String contains invalid or unsupported UTF8 code
The following example uses STL_LOAD_ERRORS with STV_TBL_PERM to create a new view, and then uses that view to determine what errors occurred while loading data into the EVENT table:
create view loadview as (select distinct tbl, trim(name) as table_name, query, starttime, trim(filename) as input, line_number, colname, err_code, trim(err_reason) as reason from stl_load_errors sl, stv_tbl_perm sp where sl.tbl = sp.id);
Next, the following query actually returns the last error that occurred while loading the EVENT table:
select table_name, query, line_number, colname, starttime, trim(reason) as error from loadview where table_name ='event' order by line_number limit 1;
The query returns the last load error that occurred for the EVENT table. If no load errors occurred, the query returns zero rows. In this example, the query returns a single error:
table_name | query | line_number | colname | error | starttime ------+-----+----+----+--------------------------------------------------------+---------------------- event | 309 | 0 | 5 | Error in Timestamp value or format [%Y-%m-%d %H:%M:%S] | 2014-04-22 15:12:44 (1 row)
