Here are 10 ideas to keep the size of a PostgreSQL data table small:

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Here are 10 ideas to keep the size of a SQL data table small:

  1. Use Appropriate Data Types
    Choose the smallest SQL data type needed (e.g., INT instead of BIGINT, TEXT instead of VARCHAR(1000) if unbounded).

  2. Avoid Unused Columns
    Don’t include columns that aren’t needed or rarely used—split them into separate SQL tables if necessary.

  3. Normalize the Schema
    Use normalization to avoid redundant data storage (e.g., store repeated     SQL strings as foreign keys).

  4. Use Partial Indexes
    Create indexes only on rows that need them instead of the entire     SQL  table.

  5. Drop Unused Indexes
    Indexes take up space—remove ones that aren’t used in     SQL queries.

  6. Use NULL Instead of Defaults
    Store NULL for optional data instead of large default values.

  7. Compress Data
    Use  (postgres) SQL TOAST (automatic) or manual compression (e.g., with pg_compress) for large text/blob fields. (MySQL :     DYNAMIC or COMPRESSED row format, SQL Server DYNAMIC )

  8. Partition Large Tables
    Break large tables into partitions to isolate and manage data growth.

  9. Vacuum and Analyze Regularly
    Run VACUUM (or autovacuum) to reclaim space from deleted/updated rows.

  10. Archive Old Data
    Move rarely accessed data to archive tables or external storage.

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