{"id":131834,"date":"2020-07-05T07:26:33","date_gmt":"2020-07-04T23:26:33","guid":{"rendered":"http:\/\/4563.org\/?p=131834"},"modified":"2020-07-05T07:26:33","modified_gmt":"2020-07-04T23:26:33","slug":"hive-%e5%ad%a6%e4%b9%a0%e4%b9%8b%e8%b7%af%ef%bc%88%e4%b8%89%ef%bc%89hive%e5%ad%98%e5%82%a8%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=131834","title":{"rendered":"hive \u5b66\u4e60\u4e4b\u8def\uff08\u4e09\uff09hive\u5b58\u50a8\u683c\u5f0f"},"content":{"rendered":"<p>Hive\u4f1a\u4e3a\u6bcf\u4e2a\u521b\u5efa\u7684\u6570\u636e\u5e93\u5728HDFS\u4e0a\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\uff0c\u8be5\u6570\u636e\u5e93\u7684\u8868\u4f1a\u4ee5\u5b50\u76ee\u5f55\u5f62\u5f0f\u5b58\u50a8\uff0c\u8868\u4e2d\u7684\u6570\u636e\u4f1a\u4ee5\u8868\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u5f62\u5f0f\u5b58\u50a8\u3002\u5bf9\u4e8edefault\u6570\u636e\u5e93\uff0c\u9ed8\u8ba4\u7684\u7f3a\u7701\u6570\u636e\u5e93\u6ca1\u6709\u81ea\u5df1\u7684\u76ee\u5f55\uff0cdefault\u6570\u636e\u5e93\u4e0b\u7684\u8868\u9ed8\u8ba4\u5b58\u653e\u5728\/user\/hive\/warehouse\u76ee\u5f55\u4e0b\u3002<\/p>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#\u5e38\u89c1\u6570\u636e\u683c\u5f0f\" title=\"\u5e38\u89c1\u6570\u636e\u683c\u5f0f\"><\/a>\u5e38\u89c1\u6570\u636e\u683c\u5f0f<\/h3>\n<ul>\n<li>textfile <\/li>\n<li>SequenceFile <\/li>\n<li>RCFile <\/li>\n<li>ORCFile <\/li>\n<li>Parquet <\/li>\n<\/ul>\n<h3><a href=\"https:\/\/www.studytime.xin\/article\/#\u6570\u636e\u683c\u5f0f\" title=\"\u6570\u636e\u683c\u5f0f\"><\/a>\u6570\u636e\u683c\u5f0f<\/h3>\n<p>\u5f53\u6570\u636e\u5b58\u50a8\u5728\u6587\u672c\u6587\u4ef6\u4e2d\uff0c\u5fc5\u987b\u6309\u7167\u4e00\u5b9a\u683c\u5f0f\u533a\u522b\u884c\u548c\u5217\uff0c\u5e76\u4e14\u5728Hive\u4e2d\u6307\u660e\u8fd9\u4e9b\u533a\u5206\u7b26\u3002Hive\u9ed8\u8ba4\u4f7f\u7528\u4e86\u51e0\u4e2a\u5e73\u65f6\u5f88\u5c11\u51fa\u73b0\u7684\u5b57\u7b26\uff0c\u8fd9\u4e9b\u5b57\u7b26\u4e00\u822c\u4e0d\u4f1a\u4f5c\u4e3a\u5185\u5bb9\u51fa\u73b0\u5728\u8bb0\u5f55\u4e2d\u3002<\/p>\n<p>Hive\u9ed8\u8ba4\u7684\u884c\u548c\u5217\u5206\u9694\u7b26\u5982\u4e0b\u8868\u6240\u793a\uff1a<br \/>| \u5206\u9694\u7b26 |\u63cf\u8ff0  |<br \/>| \u2014 | \u2014 |<br \/>| n | \u5bf9\u4e8e\u6587\u672c\u6587\u4ef6\u6765\u8bf4\uff0c\u6bcf\u884c\u662f\u4e00\u6761\u8bb0\u5f55\uff0c\u6240\u4ee5n \u6765\u5206\u5272\u8bb0\u5f55 |<br \/>| ^A | \u5206\u5272\u5b57\u6bb5\uff0c\u4e5f\u53ef\u4ee5\u7528\u000001 \u6765\u8868\u793a |<br \/>| ^B | ARRAY\u6216STRUCT\u4e2d\u5143\u7d20\u5206\u9694\u7b26\uff0c\u6216MAP\u4e2d key\u4e0evalue\u5206\u9694\u7b26\uff0c\u901a\u5e38\u5199\u6210\u201c\u000002\u201d |<br \/>| ^C | MAP\u4e2dkey\/value\u5bf9\u95f4\u7684\u5206\u9694\u7b26\uff0c\u901a\u5e38\u5199\u6210 \u201c\u000003\u201d |<\/p>\n<p>\u5e38\u7528\u5b9e\u4f8b\uff1a<\/p>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>ROW FORMAT DELIMITED FIELDS TERMINATED BY &#39;\u000001&#39; COLLECTION ITEMS TERMINATED BY &#39;\u000002&#39; MAP KEYS TERMINATED BY &#39;\u000003&#39; LINES TERMINATED BY &#39;n&#39;<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n<figure>\n<table>\n<tr>\n<td>\n<pre><span>1<\/span><br><span>2<\/span><br><span>3<\/span><br><span>4<\/span><br><span>5<\/span><br><span>6<\/span><br><span>7<\/span><br><\/pre>\n<\/td>\n<td>\n<pre><span>John Doe^A100000.0^AMary Smith^BTodd Jones^AFederal Taxes^C.2^BState Taxes^C.05^BInsurance^C.1^A1 Michigan Ave.^BChicago^BIL^B60600<\/span><br><span><\/span><br><span>Mary Smith^A80000.0^ABill King^AFederal Taxes^C.2^BState Taxes^C.05^BInsurance^C.1^A100 Ontario St.^BChicago^BIL^B60601<\/span><br><span><\/span><br><span>Todd Jones^A70000.0^A^AFederal Taxes^C.15^BState Taxes^C.03^BInsurance^C.1^A200 Chicago Ave.^BOak Park^BIL^B60700<\/span><br><span><\/span><br><span>Bill King^A60000.0^A^AFederal Taxes^C.15^BState Taxes^C.03^BInsurance^C.1^A300 Obscure Dr.^BObscuria^BIL^B60100<\/span><br><\/pre>\n<\/td>\n<\/tr>\n<\/table>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Hive\u4f1a\u4e3a\u6bcf\u4e2a\u521b\u5efa\u7684\u6570\u636e\u5e93\u5728HD&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/131834"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=131834"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/131834\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=131834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=131834"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=131834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}