{"id":2132,"date":"2017-09-29T16:42:53","date_gmt":"2017-09-29T11:12:53","guid":{"rendered":"https:\/\/pheonixsolutions.com\/blog\/?p=2132"},"modified":"2017-10-04T07:27:30","modified_gmt":"2017-10-04T01:57:30","slug":"unknown-collation-utf8mb4_unicode_520_ci","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/blog\/unknown-collation-utf8mb4_unicode_520_ci\/","title":{"rendered":"Unknown collation: utf8mb4_unicode_520_ci"},"content":{"rendered":"<h3><strong>ERROR 1273 (HY000) at line 25: Unknown collation: &#8216;utf8mb4_unicode_520_ci&#8221;<\/strong><\/h3>\n<p><strong>Date Posted: 04-10-2017<\/strong><\/p>\n<p>Recently, when we tried to resource the dump which we had taken on one server and tried to restore it on another server. The restore failed with an error:<\/p>\n<p><em><strong>ERROR 1273 (HY000) at line 25: Unknown collation: &#8216;utf8mb4_unicode_520_ci&#8221;<\/strong><\/em><\/p>\n<h4>Cause:<\/h4>\n<p>This issue could possibly happen when you restore mysqldump. This is because different mysql versions are used in source and destination server.<\/p>\n<h4>Resolution:<\/h4>\n<p>To fix this issue, Search all occurrences of utf8mb4_unicode_520_ci and replace it with utf8mb4_unicode_ci<\/p>\n<p><code>replace utf8mb4_unicode_520_ci utf8mb4_unicode_ci -- mydump.sql<\/code><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ERROR 1273 (HY000) at line 25: Unknown collation: &#8216;utf8mb4_unicode_520_ci&#8221; Date Posted: 04-10-2017 Recently, when we tried to resource the dump [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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