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Commit c939b6b

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view db_audit.tables_from_unused_migration
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‎DDL_log_to_table/do.4_views.sql‎

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@@ -141,3 +141,47 @@ GRANT SELECT ON db_audit.ddl_objects TO alexan;
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--TEST
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table db_audit.ddl_objects limit 100;
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------------------------------------------------------------------------------------------------------------------------
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CREATE VIEW db_audit.tables_from_unused_migration AS
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WITH t AS (
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SELECT n.nspname as schema_name,
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c.relname as table_name,
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pg_total_relation_size(c.oid) as total_size,
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(select reltuples::bigint
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from pg_class
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where oid = (n.nspname || '.' || c.relname)::regclass
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) as rows_estimate_count
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FROM pg_catalog.pg_class c,
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pg_catalog.pg_namespace n
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WHERE c.relnamespace = n.oid
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AND c.relkind = 'r'
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AND n.nspname IN ('migration', 'unused')
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)
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(SELECT
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t.schema_name,
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t.table_name,
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pg_size_pretty(t.total_size) AS pretty_total_size,
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regexp_replace(t.rows_estimate_count::text, '(?<=\d)(?<!\.[^.]*)(?=(\d\d\d)+(?!\d))', ',', 'g') AS pretty_rows_estimate_count,
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coalesce(o.updated_at, o.created_at) as table_modified_at
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FROM t
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INNER JOIN db_audit.ddl_objects as o on o.object_identity = t.schema_name || '.' || t.table_name
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ORDER BY schema_name, table_name desc)
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union all
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(select null,
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'*TOTAL*',
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pg_size_pretty(sum(t.total_size)),
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regexp_replace(sum(rows_estimate_count)::text, '(?<=\d)(?<!\.[^.]*)(?=(\d\d\d)+(?!\d))', ',', 'g'),
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null
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from t);
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comment on view db_audit.tables_from_unused_migration is 'Список таблиц из схем unused и migration с размером занимаемого места, количеством строк и датой модификации в каждой таблице';
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grant select on db_audit.tables_from_unused_migration to alexan;
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-- TEST
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-- список таблиц, которые можно удалить
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select *
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from db_audit.tables_from_unused_migration
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where table_modified_at < now() - interval '2 week';

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