Not even queries with CTEs will be found this way. They start with "with".
A space at the beginning will also miss it.
Am 11. Juli 2024 18:03:22 MESZ schrieb Ron Johnson <ronljohnsonjr@gmail.com>:
This query works, and works quite well, but fails if the query starts with a comment.
So far, I've accepted that "false negative" error, because being too aggressive at finding the word SELECT in a query is a worse problem. (For example, the string "select" might be in a column name that's part of a long-running COPY or ALTER.)
But I've always hoped for something better. Thus: is there any way in SQL to parse pg_stat_activity.query for the purpose of excluding comments?
PG versions 9.6.24 (yes, it's EOL), 14.12, 15.7 and 16.3, if it makes a difference.
SELECT datname, pid, client_addr, client_hostname, query_start, to_char(EXTRACT(epoch FROM now()-query_start), '99,999.99') as elapsed_secs, md5(query) pg_stat_activity WHERE datname not in ('postgres', 'template0', 'template1') AND state != 'idle' AND client_hostname !~ 'db[1-8].example.com' AND EXTRACT(epoch FROM now() - query_start) > 1800 AND SUBSTRING(upper(query) from 1 for 6) = 'SELECT';
