{"id":31961,"date":"2019-02-05T17:30:54","date_gmt":"2019-02-05T15:30:54","guid":{"rendered":"https:\/\/mamchenkov.net\/wordpress\/?p=31961"},"modified":"2019-02-05T17:31:00","modified_gmt":"2019-02-05T15:31:00","slug":"uuids-in-mysql-are-really-not-random","status":"publish","type":"post","link":"https:\/\/mamchenkov.net\/wordpress\/2019\/02\/05\/uuids-in-mysql-are-really-not-random\/","title":{"rendered":"UUIDs in MySQL are really not random"},"content":{"rendered":"\n\n

Jouke Waleson<\/a> points out to an interesting fact about UUIDs in MySQL, which you might have missed in the documentation<\/a>:<\/p>\n\n\n\n

Warning: Although UUID() values are intended to be unique, they are not necessarily unguessable or unpredictable. If unpredictability is required, UUID values should be generated some other way.<\/p><\/blockquote>\n\n\n\n

Make a note!<\/p>\n\n","protected":false},"excerpt":{"rendered":"\n

Jouke Waleson points out to an interesting fact about UUIDs in MySQL, which you might have missed in the documentation: Warning: Although UUID() values are intended to be unique, they are not necessarily unguessable or unpredictable. If unpredictability is required, UUID values should be generated some other way. Make a note!<\/p>\n\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"UUIDs in MySQL are really not random #WebDev #MySQL #databases #security","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,6,18,133,62,1334],"tags":[1559,3066,200,1330],"keyring_services":[],"class_list":["post-31961","post","type-post","status-publish","format-standard","hentry","category-general","category-linux","category-programming","category-sysadmin","category-technology","category-web-work","tag-databases","tag-mysql","tag-security","tag-web-development"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t