{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Postgres FM","title":"Zero-downtime migrations","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/b878ddc8\"></iframe>","width":"100%","height":180,"duration":1688,"description":"Nikolay and Michael discuss zero-downtime schema migrations — why they're a challenge, a variety of different cases, and some things you can do to achieve them.\n \nHere are links to a few things we mentioned: \nComparison of JOINS: MongoDB vs. PostgreSQL (blog post by Michael Stonebraker and Álvaro Hernández)\nCommon DB schema change mistakes (blog post by Nikolay)\nlock_timeout and retries (blog post by Nikolay)\nlock_timeout\nFast Column Creation with Defaults (blog post by Brandur)\nDatabase Schema Changes Without Downtime (new version of blog post by Braintree)\nZero-downtime Postgres migrations - the hard parts (blog post from GoCardless)\nGitLab migration_helpers.rb \nGitLab migration style guide\ndblab \n~~~\nWhat did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc!\nIf you would like to share this episode, here's a good link (and thank you!)\n\n~~~\nPostgres FM is brought to you by:\nNikolay Samokhvalov, founder of Postgres.ai\nMichael Christofides, founder of pgMustard\nWith special thanks to:\nJessie Draws for the amazing artwork ","thumbnail_url":"https://img.transistorcdn.com/NFbJlGhGV5mzIU1kM0iZ823A69pjZUNX40LszVO5LKI/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9zaG93/LzMyMTQ3LzE3MTA3/OTEzODMtYXJ0d29y/ay5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}