PostgreSQL query to find columns containing only NULL values
Mar 24, 2024 / · 3 min read · postgresql database optimization database schema design database administration pg_class pg_namespace pg_attribute pg_type pg_statistic ·Identifying Null-Only Columns in PostgreSQL This article explores a valuable PostgreSQL query for database administrators. It helps identify columns within your database tables that exclusively contain NULL values. Uncovering these "null-only" columns can be a key step in optimizing storage usage and streamlining your …
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