In PostgreSQL, the track_activity_query_size parameter determines the maximum size of the SQL query that can be recorded in the pg_stat_activity view. By default, this parameter is set to 1024 bytes, which means that only the first 1024 bytes of a long SQL query will be recorded.
To fix the track_activity_query_size parameter in the postgresql.conf file, you can follow these steps:
- Locate the postgresql.conf file: The postgresql.conf file is usually located in the PostgreSQL data directory. You can use the following command to locate the data directory:
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SHOW data_directory; |
2. Edit the postgresql.conf file: Open the postgresql.conf file in a text editor and locate the track_activity_query_size parameter. If the parameter is not present in the file, you can add it to the end of the file. For example, to set the track_activity_query_size parameter to 2048 bytes, add the following line:
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track_activity_query_size = 2048 |
- Save and close the postgresql.conf file: After making the changes to the file, save the changes and close the file.
- Restart the PostgreSQL server: To apply the changes to the postgresql.conf file, you need to restart the PostgreSQL server. You can use the following command to restart the server:
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sudo systemctl restart postgresql |
After restarting the server, the track_activity_query_size parameter will be set to the value you specified in the postgresql.conf file. This will allow PostgreSQL to record longer SQL queries in the pg_stat_activity view, which can be useful for monitoring and troubleshooting purposes.
