SYS_COPY_REPLACEMENTS - Amazon Redshift

SYS_COPY_REPLACEMENTS

Displays a log that records when invalid UTF-8 characters were replaced by the COPY command with the ACCEPTINVCHARS option. A log entry is added to SYS_COPY_REPLACEMENTS for each of the first 100 rows on each node slice that required at least one replacement.

You can use this view to see information about serverless workgroups and provisioned clusters.

SYS_COPY_REPLACEMENTS 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
user_id integer ID of the user who generated the query.
query_id bigint The query ID. The column used to join other system tables and views.
table_id integer The table ID.
file_name character(256) The complete path to the input file for the COPY command.
column_name character(127) The first field that contains an invalid UTF-8 character.
line_number bigint The line number in the input data file that containes an invalid UTF-8 character. -1 indicates that the line number is not available, such as when copying from a columnar data file.
raw_line character(1024) The raw load data that contains an invalid UTF-8 character.

Sample queries

The following example returns replacements for the most recent COPY operation.

select query_idp, table_id, file_name, line_number, colname from sys_copy_replacements where query = pg_last_copy_id(); query_id | table_id | file_name | line_number | column_name ---------+----------+-----------------------------------+-------------+-------- 96 | 26 | s3://mybucket/allusers_pipe.txt | 123 | city 96 | 26 | s3://mybucket/allusers_pipe.txt | 456 | city 96 | 26 | s3://mybucket/allusers_pipe.txt | 789 | city 96 | 26 | s3://mybucket/allusers_pipe.txt | 012 | city 96 | 26 | s3://mybucket/allusers_pipe.txt | 119 | city ...