SVL_STORED_PROC_MESSAGES - Amazon Redshift

SVL_STORED_PROC_MESSAGES

You can query the system view SVL_STORED_PROC_MESSAGES to get information about stored procedure messages. Raised messages are logged even if the stored procedure call is canceled. Each stored procedure call receives a query ID. For more information about how to set the minimum level for logged messages, see stored_proc_log_min_messages.

SVL_STORED_PROC_MESSAGES 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 The ID of the user whose privileges were used to run the statement. If this call was nested within a SECURITY DEFINER stored procedure, then this is the userid of the owner of that stored procedure.
session_userid integer The ID of the user that created the session and is the invoker of the top-level stored procedure call.
pid integer The process ID.
xid bigint The transaction ID.
query integer The query ID of the procedure call.
recordtime timestamp The time in UTC that the message was raised.
loglevel integer The numeric value of the log level of the raised message. Possible values: 20 – for LOG 30 – for INFO 40 – for NOTICE 50 – for WARNING 60 – for EXCEPTION
loglevel_text character(10) The log level that corresponds to the numeric value in loglevel. Possible values: LOG, INFO, NOTICE, WARNING, and EXCEPTION.
message character(1024) The text of the raised message.
linenum integer The line number of the raised statement.
querytext character(500) The actual text of the procedure call query.
label character(320) Either the name of the file used to run the query or a label defined with a SET QUERY_GROUP command. If the query is not file-based or the QUERY_GROUP parameter isn't set, this field value is default.
aborted integer If a stored procedure was stopped by the system or canceled by the user, this column contains 1. If the call runs to completion, this column contains 0.

Sample query

The following SQL statements show how to use SVL_STORED_PROC_MESSAGES to review raised messages.

-- Create and run a stored procedure CREATE OR REPLACE PROCEDURE test_proc1(f1 int) AS $$ BEGIN RAISE INFO 'Log Level: Input f1 is %',f1; RAISE NOTICE 'Notice Level: Input f1 is %',f1; EXECUTE 'select invalid'; RAISE NOTICE 'Should not print this'; EXCEPTION WHEN OTHERS THEN raise exception 'EXCEPTION level: Exception Handling'; END; $$ LANGUAGE plpgsql; -- Call this stored procedure CALL test_proc1(2); -- Show raised messages with level higher than INFO SELECT query, recordtime, loglevel, loglevel_text, trim(message) as message, aborted FROM svl_stored_proc_messages WHERE loglevel > 30 AND query = 193 ORDER BY recordtime; query | recordtime | loglevel | loglevel_text | message | aborted -------+----------------------------+----------+---------------+-------------------------------------+--------- 193 | 2020-03-17 23:57:18.277196 | 40 | NOTICE | Notice Level: Input f1 is 2 | 1 193 | 2020-03-17 23:57:18.277987 | 60 | EXCEPTION | EXCEPTION level: Exception Handling | 1 (2 rows) -- Show raised messages at EXCEPTION level SELECT query, recordtime, loglevel, loglevel_text, trim(message) as message, aborted FROM svl_stored_proc_messages WHERE loglevel_text = 'EXCEPTION' AND query = 193 ORDER BY recordtime; query | recordtime | loglevel | loglevel_text | message | aborted -------+----------------------------+----------+---------------+-------------------------------------+--------- 193 | 2020-03-17 23:57:18.277987 | 60 | EXCEPTION | EXCEPTION level: Exception Handling | 1

The following SQL statements show how to use SVL_STORED_PROC_MESSAGES to review raised messages with the SET option when creating a stored procedure. Because test_proc() has a minimum log level of NOTICE, only NOTICE, WARNING, and EXCEPTION level messages are logged in SVL_STORED_PROC_MESSAGES.

-- Create a stored procedure with minimum log level of NOTICE CREATE OR REPLACE PROCEDURE test_proc() AS $$ BEGIN RAISE LOG 'Raise LOG messages'; RAISE INFO 'Raise INFO messages'; RAISE NOTICE 'Raise NOTICE messages'; RAISE WARNING 'Raise WARNING messages'; RAISE EXCEPTION 'Raise EXCEPTION messages'; RAISE WARNING 'Raise WARNING messages again'; -- not reachable END; $$ LANGUAGE plpgsql SET stored_proc_log_min_messages = NOTICE; -- Call this stored procedure CALL test_proc(); -- Show the raised messages SELECT query, recordtime, loglevel_text, trim(message) as message, aborted FROM svl_stored_proc_messages WHERE query = 149 ORDER BY recordtime; query | recordtime | loglevel_text | message | aborted -------+----------------------------+---------------+--------------------------+--------- 149 | 2020-03-16 21:51:54.847627 | NOTICE | Raise NOTICE messages | 1 149 | 2020-03-16 21:51:54.84766 | WARNING | Raise WARNING messages | 1 149 | 2020-03-16 21:51:54.847668 | EXCEPTION | Raise EXCEPTION messages | 1 (3 rows)