Created
November 6, 2019 20:09
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Disk Usage from https://wiki.postgresql.org/wiki/Disk_Usage
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SELECT *, pg_size_pretty(total_bytes) AS total | |
, pg_size_pretty(index_bytes) AS INDEX | |
, pg_size_pretty(toast_bytes) AS toast | |
, pg_size_pretty(table_bytes) AS TABLE | |
FROM ( | |
SELECT *, total_bytes-index_bytes-COALESCE(toast_bytes,0) AS table_bytes FROM ( | |
SELECT c.oid,nspname AS table_schema, relname AS TABLE_NAME | |
, c.reltuples AS row_estimate | |
, pg_total_relation_size(c.oid) AS total_bytes | |
, pg_indexes_size(c.oid) AS index_bytes | |
, pg_total_relation_size(reltoastrelid) AS toast_bytes | |
FROM pg_class c | |
LEFT JOIN pg_namespace n ON n.oid = c.relnamespace | |
WHERE relkind = 'r' | |
) a | |
) a; |
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