[Feature] Add the row primary key value as separate column in Log table

[satsva]

It's common to get the change history for a specific row/record so it helps if a new column can be added to the log table which stores the primary key value. I know we can get that from JSON but comes with some performance cost.

Primary key column can be fetched using a SQL like below:

SELECT a.attname, format_type(a.atttypid, a.atttypmod) AS data_type FROM pg_index i JOIN pg_attribute a ON a.attrelid = i.indrelid AND a.attnum = ANY(i.indkey) WHERE i.indrelid = 'table_name'::regclass AND i.indisprimary;

Then we just need to fetch the column value from the table variable NEW.[PK_col_name].

[Marco Martinez]

Good suggestion! I'll look into it.