TiDB 4.0.0-rc2 \u73b0\u5df2\u53d1\u5e03\uff0c\u8be5\u7248\u672c\u5177\u4f53\u66f4\u65b0\u5185\u5bb9\u5982\u4e0b<\/strong><\/span><\/div>\n
\u5c06\u5355\u4e2a\u4e8b\u52a1\u7684\u5927\u5c0f\u9650\u5236\u4ece 100 MB \u66f4\u6539\u4e3a\u65e0\u9650\u3002\u4f46\u662f\uff0c\u5982\u679c\u542f\u7528\u4e86 TiDB Binlog\uff0c\u800c\u4e0b\u6e38\u662f Kafka\uff0c\u5219\u6839\u636e kafka \u4e2d 1 GB \u7684\u6d88\u606f\u5927\u5c0f\u9650\u5236\u914d\u7f6etxn-total-size-limit\u53c2\u6570\u3002\uff031694116941<\/p>\n
\u5982\u679c\u67e5\u8be2CLUSTER_LOG\u8868\u65f6\u672a\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\uff0c\u5219\u5c06\u884c\u4e3a\u4ece\u67e5\u8be2\u9ed8\u8ba4\u65f6\u95f4\u8303\u56f4\u66f4\u6539\u4e3a\u8fd4\u56de\u9519\u8bef\u5e76\u8bf7\u6c42\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u300217003<\/p>\n
\u5982\u679c\u4f7f\u7528CREATE TABLE\u8bed\u53e5\u521b\u5efa\u5206\u533a\u8868\u65f6\u6307\u5b9a\u4e86 unsupported sub-partition\u6216linear hashoption\uff0c\u5219\u521b\u5efa\u666e\u901a\u8868\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5ffd\u7565\u9009\u9879\u7684\u5206\u533a\u8868\uff0317197<\/p>\n
Bug Fixes<\/strong><\/span><\/div>\n
\u89e3\u51b3WHERE\u5b50\u53e5\u53ea\u6709\u4e00\u4e2a\u7b49\u6548\u6761\u4ef6\u65f6\u9009\u62e9\u9519\u8bef\u5206\u533a\u7684\u95ee\u9898\uff0317054<\/p>\n
\u4fee\u590d\u4e86\u5f53WHERE\u5b50\u53e5\u4ec5\u5305\u542b\u5b57\u7b26\u4e32\u5217\u65f6\uff0c\u7531\u4e8e\u6784\u5efa\u4e0d\u6b63\u786e\u7684\u7d22\u5f15\u8303\u56f4\u800c\u5bfc\u81f4\u7684\u9519\u8bef\u7ed3\u679c\u7684\u95ee\u9898\uff0316660<\/p>\n
\u4fee\u590d\u5728DELETE\u64cd\u4f5c\u4e4b\u540e\u5728\u4e8b\u52a1\u4e2d\u6267\u884cPointGet\u67e5\u8be2\u65f6\u51fa\u73b0\u7684\u7d27\u6025\u95ee\u9898\uff0316991<\/p>\n
\u4fee\u590d\u53d1\u751f\u9519\u8bef\u65f6 GC worker \u53ef\u80fd\u4f1a\u9047\u5230\u6b7b\u9501\u7684\u95ee\u9898\uff0316915<\/p>\n
\u5f53 TiKV \u54cd\u5e94\u7f13\u6162\u4f46\u4e0d\u4f1a\u964d\u4f4e\u65f6\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684 RegionMiss \u91cd\u8bd5\uff0316956<\/p>\n
\u5728 MySQL \u534f\u8bae\u7684 handshake \u9636\u6bb5\u5c06\u5ba2\u6237\u7aef\u4e2d\u7684\u65e5\u5fd7\u7ea7\u522b\u66f4\u6539\u4e3aDEBUG\u4ee5\u89e3\u51b3\u5e72\u6270\u65e5\u5fd7\u8f93\u51fa\u7684\u95ee\u9898\uff0316881<\/p>\n
New Features<\/strong><\/span><\/div>\n
\u6dfb\u52a0\u5bf9BACKUP\u548c RESTORE\u547d\u4ee4\u7684\u652f\u6301\u4ee5\u5907\u4efd\u548c\u8fd8\u539f\u6570\u636e 16960<\/p>\n
\u652f\u6301\u5728\u63d0\u4ea4\u4e4b\u524d\u68c0\u67e5\u5355\u4e2a\u533a\u57df\u4e2d\u7684\u6570\u636e\u91cf\uff0c\u5e76\u5728\u6570\u636e\u91cf\u8d85\u8fc7\u9608\u503c\u65f6\u5bf9\u533a\u57df\u8fdb\u884c\u9884\u5206\u5272 16959<\/p>\n
\u6dfb\u52a0\u5177\u6709Session scope \u7684\u65b0 LAST_PLAN_FROM_CACHE \u53d8\u91cf\uff0c\u4ee5\u6307\u793a\u6700\u540e\u6267\u884c\u7684\u8bed\u53e5\u662f\u5426\u547d\u4e2d\u8ba1\u5212\u7f13\u5b58 16830<\/p>\n
\u652f\u6301\u5728 slow log \u548cSLOW_LOG\u8868\u4e2d\u8bb0\u5f55Cop_time\u4fe1\u606f 16904<\/p>\n
\u5728 Grafana \u4e2d\u6dfb\u52a0\u66f4\u591a\u8861\u91cf Go \u8fd0\u884c\u65f6\u5185\u5b58\u72b6\u6001\u7684\u6307\u6807 16928<\/p>\n
\u652f\u6301\u5728\u5e38\u89c4\u65e5\u5fd7\u4e2d\u8f93\u51fa forUpdateTS \u548c Read Consistency isolation level \u4fe1\u606f 16946<\/p>\n
\u66f4\u65b0\u8bf4\u660e<\/strong><\/span><\/div>\n
https:\/\/github.com\/pingcap\/tidb\/releases\/tag\/v4.0.0-rc.2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5c06\u5355\u4e2a\u4e8b\u52a1\u7684\u5927\u5c0f\u9650\u5236\u4ece 100 MB \u66f4\u6539\u4e3a\u65e0\u9650\u3002\u4f46\u662f\uff0c\u5982\u679c\u542f\u7528\u4e86 TiDB Binlog\uff0c\u800c\u4e0b\u6e38\u662f Kafk […]<\/p>\n","protected":false},"author":668,"featured_media":191541,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-191539","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/191539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/668"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=191539"}],"version-history":[{"count":3,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/191539\/revisions"}],"predecessor-version":[{"id":191785,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/191539\/revisions\/191785"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/191541"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=191539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=191539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=191539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}