{"id":5389,"date":"2020-07-30T00:07:43","date_gmt":"2020-07-29T16:07:43","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5389"},"modified":"2020-07-30T00:07:43","modified_gmt":"2020-07-29T16:07:43","slug":"mysql-binlog-%e6%96%87%e4%bb%b6%e6%a0%bc%e5%bc%8f%e8%a7%a3%e6%9e%90table_map_event","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5389","title":{"rendered":"MySQL Binlog \u6587\u4ef6\u683c\u5f0f\u89e3\u6790(TABLE_MAP_EVENT)"},"content":{"rendered":"<div>\n<div>\n\u57fa\u4e8eROW\u683c\u5f0f\u7684MySQL Binlog\u5728\u8bb0\u5f55DML\u8bed\u53e5\u7684\u6570\u636e\u65f6\uff0c\u603b\u4f1a\u5148\u5199\u5165\u4e00\u4e2atable_map_event\uff0c\u8fd9\u79cd\u7c7b\u578b\u7684event\u7528\u4e8e\u8bb0\u5f55\u8868\u7ed3\u6784\u76f8\u5173\u5143\u6570\u636e\u4fe1\u606f\uff0c\u6bd4\u5982\u6570\u636e\u5e93\u540d\u79f0\uff0c\u8868\u540d\u79f0\uff0c\u8868\u7684\u5b57\u6bb5\u7c7b\u578b\uff0c\u8868\u7684\u5b57\u6bb5\u5143\u6570\u636e\u7b49\u7b49\uff0c\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecdtable_map_event\u7684\u7ed3\u6784\u3002\n<\/div>\n<\/div>\n<div>\n<div>\n<div><\/div>\n<div>\u672c\u6587\u6848\u4f8b\u6d89\u53ca\u7684MySQL\u7248\u672c\u53ca\u914d\u7f6e\u4fe1\u606f\uff1a<\/div>\n<ul>\n<li>\n<div>MySQL Server 5.7.19<\/div>\n<\/li>\n<li>\n<div>binlog_format\uff1aROW<\/div>\n<\/li>\n<li>\n<div>binlog_row_image\uff1aFULL<\/div>\n<\/li>\n<\/ul>\n<div><\/div>\n<div>\u4e00\u3001table_map_event\u7ed3\u6784\u56fe\uff1a<\/div>\n<table>\n<colgroup>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<td>\n<div>\u7ed3\u6784\u540d\u79f0<\/div>\n<\/td>\n<td>\n<div>\u5360\u7528\u5b57\u8282\u6570<\/div>\n<\/td>\n<td>\n<div>\u63cf\u8ff0<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>event header<\/div>\n<\/td>\n<td>\n<div>19\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>event\u5934\u4fe1\u606f\uff0c\u5176\u4e2devent type\u7c7b\u578b\u4e3aTABLE_MAP_EVENT\uff0c\u503c\u4e3a19<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>table id<\/div>\n<\/td>\n<td>\n<div>6\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>table\u00a0id<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>flags<\/div>\n<\/td>\n<td>\n<div>2\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>flags<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>schema name length<\/div>\n<\/td>\n<td>\n<div>1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u6570\u636e\u5e93\u540d\u79f0\u957f\u5ea6\uff0c\u5047\u8bbe\u4e3an<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>schema name<\/div>\n<\/td>\n<td>\n<div>n+1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u6570\u636e\u5e93\u540d\u79f0\uff0c\u5b9e\u9645\u957f\u5ea6\u4e3an\uff0c\u52a0\u4e0a\u6700\u540e\u4e00\u4e2a\u5b57\u82820\uff0c\u603b\u957f\u5ea6\u4e3an+1<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>table name length<\/div>\n<\/td>\n<td>\n<div>1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u8868\u540d\u79f0\u957f\u5ea6\uff0c\u5047\u8bbe\u4e3am<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>table name<\/div>\n<\/td>\n<td>\n<div>m+1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u8868\u540d\u79f0\uff0c\u5b9e\u9645\u957f\u5ea6\u4e3am\uff0c\u52a0\u4e0a\u6700\u540e\u4e00\u4e2a\u5b57\u82820\uff0c\u603b\u957f\u5ea6\u4e3am+1<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>field count<\/div>\n<\/td>\n<td>\n<div>1\u62163\u62164\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u5b57\u6bb5\u6570\u91cf\uff0c\u5360\u75281,3,4\u5b57\u8282\u4e0d\u7b49\uff0c\u6839\u636e\u5177\u4f53\u6570\u91cf\u51b3\u5b9a<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>field types<\/div>\n<\/td>\n<td>\n<div>field count \u4e2a\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u5b57\u6bb5\u7c7b\u578b\uff0c\u6bcf\u4e2a\u7c7b\u578b\u5360\u75281\u4e2a\u5b57\u8282<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>metadata<\/div>\n<\/td>\n<td>\n<div>\u957f\u5ea6\u4e0d\u5b9a<\/div>\n<\/td>\n<td>\n<div>\u8868\u5b57\u6bb5\u5143\u6570\u636e\uff0c\u957f\u5ea6\u4e0d\u5b9a\uff0c\u4e5f\u53ef\u80fd\u6ca1\u6709\uff0c\u7531\u5177\u4f53\u7684\u8868\u5b57\u6bb5\u7c7b\u578b\u51b3\u5b9a\uff0c\u901a\u5e38\u4e0d\u5b9a\u957f\u5b57\u6bb5\u548c\u6d6e\u70b9\u578b\u5b57\u6bb5\u90fd\u4f1a\u6709metadata<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>field is null<\/div>\n<\/td>\n<td>\n<div>\u5360\u7528\u5b57\u8282\u6570\u4e3a\uff1a(field_count + 7) \/ 8<\/div>\n<\/td>\n<td>\n<div>\u8868\u793a\u8868\u4e2d\u54ea\u4e9b\u5b57\u6bb5\u53ef\u4ee5\u4e3a\u7a7a\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u4f7f\u75281\u4e2abit\u8868\u793a<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div><\/div>\n<div>\u4e8c\u3001\u5b57\u6bb5\u7c7b\u578b\uff1a<\/div>\n<div>MySQL\u8868\u7684\u5b57\u6bb5\u7c7b\u578b\u662f\u4e00\u4e2a\u679a\u4e3e\u7c7b\u578b\uff0c\u5728binlog\u4e2d\uff0c\u4e00\u4e2a\u7c7b\u578b\u4f7f\u7528\u4e00\u4e2a\u5b57\u8282\u5c31\u80fd\u5b58\u4e0b\uff0c\u5982\u4e0b\uff1a<\/div>\n<div>\n<div>typedef enum enum_field_types {<\/div>\n<div>\u00a0MYSQL_TYPE_DECIMAL, MYSQL_TYPE_TINY,<\/div>\n<div>\u00a0MYSQL_TYPE_SHORT, \u00a0MYSQL_TYPE_LONG,<\/div>\n<div>\u00a0MYSQL_TYPE_FLOAT, \u00a0MYSQL_TYPE_DOUBLE,<\/div>\n<div>\u00a0MYSQL_TYPE_NULL, \u00a0 MYSQL_TYPE_TIMESTAMP,<\/div>\n<div>\u00a0MYSQL_TYPE_LONGLONG,MYSQL_TYPE_INT24,<\/div>\n<div>\u00a0MYSQL_TYPE_DATE, \u00a0 MYSQL_TYPE_TIME,<\/div>\n<div>\u00a0MYSQL_TYPE_DATETIME, MYSQL_TYPE_YEAR,<\/div>\n<div>\u00a0MYSQL_TYPE_NEWDATE, MYSQL_TYPE_VARCHAR,<\/div>\n<div>\u00a0MYSQL_TYPE_BIT,<\/div>\n<div>\u00a0MYSQL_TYPE_TIMESTAMP2,<\/div>\n<div>\u00a0MYSQL_TYPE_DATETIME2,<\/div>\n<div>\u00a0MYSQL_TYPE_TIME2,<\/div>\n<div>\u00a0MYSQL_TYPE_JSON=245,<\/div>\n<div>\u00a0MYSQL_TYPE_NEWDECIMAL=246,<\/div>\n<div>\u00a0MYSQL_TYPE_ENUM=247,<\/div>\n<div>\u00a0MYSQL_TYPE_SET=248,<\/div>\n<div>\u00a0MYSQL_TYPE_TINY_BLOB=249,<\/div>\n<div>\u00a0MYSQL_TYPE_MEDIUM_BLOB=250,<\/div>\n<div>\u00a0MYSQL_TYPE_LONG_BLOB=251,<\/div>\n<div>\u00a0MYSQL_TYPE_BLOB=252,<\/div>\n<div>\u00a0MYSQL_TYPE_VAR_STRING=253,<\/div>\n<div>\u00a0MYSQL_TYPE_STRING=254,<\/div>\n<div>\u00a0MYSQL_TYPE_GEOMETRY=255<\/div>\n<div>} enum_field_types;<\/div>\n<\/div>\n<div><\/div>\n<div>\u4e09\u3001metadata\u5143\u6570\u636e\u5206\u6790\uff1a<\/div>\n<div>\u4e0d\u540c\u7c7b\u578b\u7684\u5b57\u6bb5\uff0c\u5176metadata\u5927\u5c0f\u548c\u610f\u4e49\u4e5f\u4e0d\u76f8\u540c\u3002<\/div>\n<table>\n<colgroup>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<td>\n<div>\u5b57\u6bb5\u540d\u79f0<\/div>\n<\/td>\n<td>\n<div>metadata\u5927\u5c0f<\/div>\n<\/td>\n<td>\n<div>\u63cf\u8ff0<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_TINY<\/div>\n<div>MYSQL_TYPE_SHORT<\/div>\n<div>MYSQL_TYPE_INT24<\/div>\n<div>MYSQL_TYPE_LONG<\/div>\n<div>MYSQL_TYPE_LONGLONG<\/div>\n<div>MYSQL_TYPE_YEAR<\/div>\n<div>MYSQL_TYPE_DATE<\/div>\n<\/td>\n<td>\n<div>metadata\u4e3a\u7a7a<\/div>\n<\/td>\n<td>\n<div>\u5360\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u7c7b\u578b\uff0c\u5176metadata\u901a\u5e38\u4e3a\u7a7a\u3002<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_FLOAT<\/div>\n<\/td>\n<td>\n<div>metadata 1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u503c\u56fa\u5b9a\u4e3a4\uff0c\u5373float\u5360\u7528\u7684\u5b57\u8282\u6570<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_DOUBLE<\/div>\n<\/td>\n<td>\n<div>metadata 1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u503c\u56fa\u5b9a\u4e3a8\uff0c\u5373double\u5360\u7528\u7684\u5b57\u8282\u6570<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_NEWDECIMAL<\/div>\n<\/td>\n<td>\n<div>metadata 2\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u7b2c1\u4e2a\u5b57\u8282\u8868\u793a\u7cbe\u5ea6\uff0c\u5373\u5c0f\u6570\u70b9\u524d\u7684\u4f4d\u6570<\/div>\n<div>\u7b2c2\u4e2a\u5b57\u8282\u8868\u793a\u5c0f\u6570\u70b9\u540e\u7684\u4f4d\u6570<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_VARCHAR<\/div>\n<\/td>\n<td>\n<div>metadata 2\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u8868\u793a\u5360\u7528\u7684\u5b57\u8282\u6570\uff08\u4e0d\u662f\u5b57\u7b26\u6570\uff09<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_STRING<\/div>\n<div>MYSQL_TYPE_ENUM<\/div>\n<div>MYSQL_TYPE_SET<\/div>\n<\/td>\n<td>\n<div>metadata 2\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u5728binlog\u4e2d\uff0cchar\uff0cset, enum \u4e09\u79cd\u7c7b\u578b\u90fd\u4f7f\u7528MYSQL_TYPE_STRING\u8868\u793a\uff0c\u5bf9\u4e8eset\u548cenum metadata\u7b2c1\u4e2a\u5b57\u8282\u8868\u793a\u5176\u771f\u5b9e\u7684\u5b57\u6bb5\u7c7b\u578b\uff0c\u7b2c2\u4e2a\u5b57\u8282\u8868\u793a\u6570\u636e\u5360\u7528\u7684\u5b57\u8282\u6570\u3002char\u7c7b\u578b\u7684\u8868\u793a\u7565\u6709\u4e0d\u540c\u3002<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_BLOB<\/div>\n<div>MYSQL_TYPE_JSON<\/div>\n<div>MYSQL_TYPE_GEOMETRY<\/div>\n<div><\/div>\n<\/td>\n<td>\n<div>metadata 1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u503c\u4e3a\u5b57\u8282\u6570\uff0c\u5373\u4f7f\u7528\u591a\u5c11\u4e2a\u5b57\u8282\u6765\u8868\u793ablob\u7c7b\u578b\u6570\u636e\u5360\u7528\u7684\u5927\u5c0f\u3002text,blob,json,geometry\u5728binlog\u4e2d\u90fd\u4ee5blob\u7c7b\u578b\u6765\u8868\u793a\u3002<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_BIT<\/div>\n<\/td>\n<td>\n<div>metadata 2\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u8868\u793abit\u7684\u4f4d\u6570\uff0cmetadata\u7b2c1\u4e2a\u5b57\u8282\u4e3a\u4f4d\u6570\u96648\u7684\u6574\u6570\uff0cmetadata\u7b2c2\u4e2a\u5b57\u8282\u4e3a\u4f4d\u6570\u5bf98\u53d6\u7684\u4f59\u6570\u3002<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div>MYSQL_TYPE_TIME2<\/div>\n<div>MYSQL_TYPE_TIMESTAMP2<\/div>\n<div>MYSQL_TYPE_DATETIME2<\/div>\n<\/td>\n<td>\n<div>metadata 1\u5b57\u8282<\/div>\n<\/td>\n<td>\n<div>\u8868\u793a\u79d2\u540e\u9762\u7684\u4f4d\u6570\uff0c\u6bd4\u598220:20:20.123\uff0cmetadata\u503c\u4e3a3<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div><\/div>\n<div>\u6700\u540e\uff0c\u5173\u4e8ebinlog\u00a0table_map_event \u7684\u4e00\u70b9\u6ce8\u610f\uff1a<\/div>\n<ol>\n<li>\n<div>binlog\u4e2d\u5b58\u50a8\u7684\u8868\u7ed3\u6784\u4fe1\u606f\uff0c\u53ea\u6709\u5b57\u6bb5\u7c7b\u578b\uff0c\u6ca1\u6709\u5b57\u6bb5\u540d\u79f0\u3002<\/div>\n<\/li>\n<li>\n<div>binlog\u4e2d\u5b58\u50a8\u7684\u6574\u578b\uff0c\u6ca1\u6709signed\u6216\u8005unsigned\u4fe1\u606f\uff0c\u540c\u6837\u4f7f\u7528mysqlbinlog\u89e3\u6790\u4e5f\u65e0\u6cd5\u5206\u8fa8\u51fa\u6574\u578b\u503c\u662f\u5426\u6709\u7b26\u53f7\u3002<\/div>\n<\/li>\n<\/ol>\n<div><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8eROW\u683c\u5f0f\u7684MySQL Binlog\u5728\u8bb0\u5f55DML\u8bed\u53e5\u7684\u6570\u636e\u65f6\uff0c\u603b\u4f1a\u5148\u5199\u5165\u4e00\u4e2atable_map_event &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5389\"> <span class=\"screen-reader-text\">MySQL Binlog \u6587\u4ef6\u683c\u5f0f\u89e3\u6790(TABLE_MAP_EVENT)<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[90,88],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u57fa\u4e8eROW\u683c\u5f0f\u7684MySQL Binlog\u5728\u8bb0\u5f55DML\u8bed\u53e5\u7684\u6570\u636e\u65f6\uff0c\u603b\u4f1a\u5148\u5199\u5165\u4e00\u4e2atable_map_event&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5389"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5389"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5389\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5389"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}