28 lines
1.2 KiB
SQL
28 lines
1.2 KiB
SQL
-- ============================================================================
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-- Creates a view to monitor partition status and sizes.
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-- ============================================================================
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CREATE OR REPLACE VIEW partitions.monitoring AS
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SELECT
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parent.relname AS parent_table,
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c.table_name,
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c.period,
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c.keep_history,
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count(child.relname) AS partition_count,
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count(child.relname) FILTER (
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WHERE
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(c.period = 'day' AND child.relname > (parent.relname || '_p' || to_char(now(), 'YYYYMMDD')))
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OR
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(c.period = 'month' AND child.relname > (parent.relname || '_p' || to_char(now(), 'YYYYMM')))
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) AS future_partitions,
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pg_size_pretty(sum(pg_total_relation_size(child.oid))) AS total_size,
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min(child.relname) AS oldest_partition,
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max(child.relname) AS newest_partition,
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c.last_updated
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FROM partitions.config c
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JOIN pg_class parent ON parent.relname = c.table_name
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LEFT JOIN pg_inherits ON pg_inherits.inhparent = parent.oid
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LEFT JOIN pg_class child ON pg_inherits.inhrelid = child.oid
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WHERE parent.relkind = 'p' -- Only partitioned tables
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GROUP BY parent.relname, c.table_name, c.period, c.keep_history, c.last_updated;
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