客户端“ psql”会截断“文本”类型的列中的值

Question

I query pg_stat_activity . The column query is of type text . The queries can be very long.

The client psql truncates very long queries.

What should I do to see the full query?

Answer 1

psql does not. try running smth like

select lpad('a',3000,'b');

Instead it is limited in postgresql.conf , try:

b=# show track_activity_query_size;
 track_activity_query_size
---------------------------
 1024
(1 row)

According to docs :

track_activity_query_size (integer)

Specifies the number of bytes reserved to track the currently executing command for each active session, for the pg_stat_activity.query field. The default value is 1024. This parameter can only be set at server start.