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Ecto PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.
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lib/queries/table_indexes_size.ex
defmodule EctoPSQLExtras.TableIndexesSize do
def title do
"Total size of all the indexes on each table, descending by size"
end
def query do
"""
/* Total size of all the indexes on each table, descending by size */
SELECT c.relname AS table,
pg_size_pretty(pg_indexes_size(c.oid)) AS index_size
FROM pg_class c
LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
WHERE n.nspname NOT IN ('pg_catalog', 'information_schema')
AND n.nspname !~ '^pg_toast'
AND c.relkind IN ('r', 'm')
ORDER BY pg_indexes_size(c.oid) DESC;
"""
end
end