{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Postgres FM","title":"NOT VALID constraints","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/23d49b95\"></iframe>","width":"100%","height":180,"duration":2036,"description":"Nikolay and Michael discuss adding constraints in an online fashion, using NOT VALID and then VALIDATE CONSTRAINT.\n \nHere are some links to things they mentioned:\nADD table_constraint NOT VALID  https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-DESC-ADD-TABLE-CONSTRAINT\nOur episode on zero-downtime migrations https://postgres.fm/episodes/zero-downtime-migrations\nVALIDATE CONSTRAINT https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-DESC-VALIDATE-CONSTRAINT\nALTER TABLE notes https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-NOTES\npgroll https://github.com/xataio/pgroll\n\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!\n\n~~~\nPostgres FM is produced by:\nMichael Christofides, founder of pgMustard\nNikolay Samokhvalov, founder of Postgres.ai\n\nWith special thanks to:\nJessie Draws for the elephant 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}