133 lines
4.7 KiB
MySQL
133 lines
4.7 KiB
MySQL
CREATE FUNCTION database_size (name) RETURNS bigint
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AS 'MODULE_PATHNAME', 'database_size'
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LANGUAGE C STRICT;
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CREATE FUNCTION relation_size (text) RETURNS bigint
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AS 'MODULE_PATHNAME', 'relation_size'
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LANGUAGE C STRICT;
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CREATE FUNCTION pg_tablespace_size(oid) RETURNS bigint
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AS 'MODULE_PATHNAME', 'pg_tablespace_size'
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LANGUAGE C STRICT;
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CREATE FUNCTION pg_database_size(oid) RETURNS bigint
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AS 'MODULE_PATHNAME', 'pg_database_size'
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LANGUAGE C STRICT;
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CREATE FUNCTION pg_relation_size(oid) RETURNS bigint
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AS 'MODULE_PATHNAME', 'pg_relation_size'
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LANGUAGE C STRICT;
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CREATE FUNCTION pg_size_pretty(bigint) RETURNS text
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AS 'MODULE_PATHNAME', 'pg_size_pretty'
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LANGUAGE C STRICT;
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CREATE FUNCTION total_relation_size (text) RETURNS bigint AS '
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SELECT pg_relation_size(r.oid)
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+ COALESCE(pg_relation_size(t.oid), 0)::bigint
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+ COALESCE(pg_relation_size(ti.oid), 0)::bigint
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+ COALESCE(SUM(pg_relation_size(i.indexrelid)), 0)::bigint
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+ COALESCE(SUM(pg_relation_size(it.oid)), 0)::bigint
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+ COALESCE(SUM(pg_relation_size(iti.oid)), 0)::bigint AS bytes
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FROM pg_class r
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LEFT JOIN pg_class t ON (r.reltoastrelid = t.oid)
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LEFT JOIN pg_class ti ON (t.reltoastidxid = ti.oid)
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LEFT JOIN pg_index i ON (r.oid = i.indrelid)
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LEFT JOIN pg_class ir ON (ir.oid = i.indexrelid)
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LEFT JOIN pg_class it ON (ir.reltoastrelid = it.oid)
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LEFT JOIN pg_class iti ON (it.reltoastidxid = iti.oid)
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WHERE r.relname = \$1
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GROUP BY r.oid, t.oid, ti.oid
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' LANGUAGE SQL;
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CREATE FUNCTION indexes_size (text) RETURNS bigint
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AS '
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SELECT COALESCE(SUM(pg_relation_size(ir.oid)), 0)::bigint
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+ COALESCE(SUM(pg_relation_size(it.oid)), 0)::bigint
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+ COALESCE(SUM(pg_relation_size(iti.oid)), 0)::bigint AS bytes
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FROM pg_class r
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LEFT JOIN pg_index i ON (r.oid = i.indrelid)
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LEFT JOIN pg_class ir ON (ir.oid = i.indexrelid)
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LEFT JOIN pg_class it ON (ir.reltoastrelid = it.oid)
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LEFT JOIN pg_class iti ON (it.reltoastidxid = iti.oid)
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WHERE r.relname = \$1
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' LANGUAGE SQL;
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CREATE FUNCTION relation_size_components (text) RETURNS SETOF RECORD
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AS '
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-- relation size
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SELECT indexes_size(r.relname) AS indexes_size,
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relation_size(r.relname) AS data_size,
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total_relation_size(r.relname) AS total_size,
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r.relname, r.relkind, r.oid AS relid, r.relfilenode
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FROM pg_class r
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WHERE r.relname = \$1
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UNION ALL
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-- relation toast size
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SELECT indexes_size(toast.relname) AS indexes_size,
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relation_size(''pg_toast.''||toast.relname) AS data_size,
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total_relation_size(toast.relname) AS total_size,
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toast.relname, toast.relkind, toast.oid AS relid, toast.relfilenode
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FROM pg_class r, pg_class toast
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WHERE r.reltoastrelid = toast.oid
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AND r.relname = \$1
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UNION ALL
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-- relation toast index size
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SELECT indexes_size(toastidxr.relname) AS indexes_size,
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relation_size(''pg_toast.''||toastidxr.relname) AS data_size,
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total_relation_size(toastidxr.relname) AS total_size,
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toastidxr.relname, toastidxr.relkind,
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toastidxr.oid AS relid, toastidxr.relfilenode
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FROM pg_class r, pg_index toastidx, pg_class toastidxr
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WHERE r.relname = \$1
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AND r.reltoastrelid = toastidx.indrelid
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AND toastidx.indexrelid = toastidxr.oid
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UNION ALL
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-- relation indices size
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SELECT indexes_size(idxr.relname) AS indexes_size,
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relation_size(idxr.relname) AS data_size,
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total_relation_size(idxr.relname) AS total_size,
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idxr.relname, idxr.relkind, idxr.oid AS relid, idxr.relfilenode
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FROM pg_class r, pg_class idxr, pg_index idx
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WHERE r.relname = \$1
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AND r.oid = idx.indrelid
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AND idx.indexrelid = idxr.oid
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UNION ALL
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-- relation indices toast size
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SELECT indexes_size(idxtoastr.relname) AS indexes_size,
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relation_size(''pg_toast.''||idxtoastr.relname) AS data_size,
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total_relation_size(idxtoastr.relname) AS total_size,
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idxtoastr.relname, idxtoastr.relkind, idxtoastr.oid AS relid,
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idxtoastr.relfilenode
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FROM pg_class r, pg_class idxr, pg_index idx, pg_class idxtoastr
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WHERE r.relname = \$1
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AND r.oid = idx.indrelid
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AND idx.indexrelid = idxr.oid
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AND idxr.reltoastrelid = idxtoastr.oid
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UNION ALL
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-- relation indices toast index size
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SELECT indexes_size(idxtoastidxr.relname) AS indexes_size,
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relation_size(''pg_toast.''||idxtoastidxr.relname) AS data_size,
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total_relation_size(idxtoastidxr.relname) AS total_size,
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idxtoastidxr.relname, idxtoastidxr.relkind,
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idxtoastidxr.oid AS relid, idxtoastidxr.relfilenode
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FROM pg_class r, pg_class idxr, pg_index idx, pg_class idxtoast,
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pg_class idxtoastidxr
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WHERE r.relname = \$1
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AND r.oid = idx.indrelid
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AND idx.indexrelid = idxr.oid
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AND idxr.reltoastrelid = idxtoast.oid
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AND idxtoast.reltoastrelid = idxtoastidxr.oid
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' LANGUAGE SQL;
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