"McGehee, Robert" <robert.mcge...@geodecapital.com> writes:
> SELECT n.node, sum(students) as students
> FROM tree_tbl t, node_tbl n
> WHERE t.course ~ '.*' || n.node || '.*'
> GROUP BY n.node;
I'd write this as
SELECT n.node, sum(students) AS students
FROM tree_tbl t
JOIN node_tbl n ON t.course ~ ('*.' || n.node || '.*')::lquery
GROUP BY n.node;
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