Move attachments serialized data to it’s own table

  • dylandawg

    (@dylandawg)


    2 weeks, 3 days ago

    WordPress’s reliance on the wp_postmeta table for storing all sorts of extra data, including serialized attachment metadata, can become a significant bottleneck as a site grows…

    Media attachments store metadata (like sizes, thumbnails, EXIF data) as serialized arrays in a single row (meta_value), making queries and filtering inefficient. querying specific properties (like width or height of an image) requires either loading all meta into PHP or using expensive LIKE queries.

    A better approach would be:

    A dedicated wp_attachments_meta table with structured columns (width, height, alt_text, etc.). Proper indexing for frequently queried fields.

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