Category: database tips and tricks
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finding Postgresql index size and usage details
Gain valuable insights into PostgreSQL index size, parent table size, and usage details with a comprehensive query. This query provides a wealth of information, including the table name, index name, whether the index is a primary key or unique, the index’s readiness status, the number of rows in the table, and various statistics on index…
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Finding disk space used by postgresql tables
Uncover valuable insights into the disk space usage of PostgreSQL tables with a simple query. To retrieve detailed information about the disk space occupied by each table, execute the following query This query provides a comprehensive view of size details for all user tables in the current PostgreSQL database. The results are formatted for easy…
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fast method to find postgresql table’s approximate row count
Discover a swift method to estimate the row count of PostgreSQL tables, especially useful for large datasets. While the conventional SELECT COUNT(*) FROM table_name; is suitable for smaller tables, it becomes inefficient for substantial datasets. For large tables, where precision is not critical, consider using the following query for an approximate row count This query…