<\/span><\/h2>\n\n\n\n\u901a\u8fc7\u4fee\u6539\u6570\u636e\u5e93\u914d\u7f6e\u6587\u4ef6\u7684\u65b9\u5f0f\uff0c\u5bf9\u6240\u6709\u5efa\u8868\u65f6\u6ca1\u6709\u6307\u5b9a\u538b\u7f29\u7b97\u6cd5\u7684\u8868\u548c\u5217\uff0c\u91c7\u7528\u6b64\u9ed8\u8ba4\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n
\u5728\u8001\u7684\u7248\u672c\u91cc\u9ed8\u8ba4\u662f0\uff0c0\uff0c\u5728\u65b0\u7248\u672c\u91cc\u9ed8\u8ba4\u662f5\uff0c5\uff0c \u8be6\u60c5\u53ef\u4ee5\u770b\u8ba1\u7b97\u8282\u70b9gnode\u7684\u914d\u7f6e\u6587\u4ef6\u5982\u4e0b\u7684\u7ea2\u8272\u90e8\u5206\u3002<\/p>\n\n\n\n
[root@gbase_rh7_001 sys_tablespace]# cat \/opt\/gbase\/gnode\/config\/gbase_8a_gbase.cnf | grep gbase_compress\r\n#gbase_compression_sampling=1\r\ngbase_compression_str_method=5\r\ngbase_compression_num_method=5\r<\/span>\n[root@gbase_rh7_001 sys_tablespace]#\r\n<\/code><\/pre>\n\n\n\n\u6b64\u65f6\u5efa\u8868\u65f6\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u538b\u7f29\u65b9\u6cd5\uff0c\u5219\u6570\u636e\u4f7f\u7528\u9ed8\u8ba4\u6b64\u5b9e\u4f8b\u7ea7\u6307\u5b9a\u7684\u538b\u7f29\u65b9\u6cd5\u3002<\/p>\n\n\n\n
gbase> create table t_default_compress(id int, name varchar(100),birth date);\r\nQuery OK, 0 rows affected (Elapsed: 00:00:00.10)\r\n\r\ngbase> show create table t_default_compress;\r\n+--------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+\r\n| Table | Create Table |\r\n+--------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+\r\n| t_default_compress | CREATE TABLE \"t_default_compress\" (\r\n \"id\" int(11) DEFAULT NULL,\r\n \"name\" varchar(100) DEFAULT NULL,\r\n \"birth\" date DEFAULT NULL\r\n) ENGINE=EXPRESS DEFAULT CHARSET=utf8 TABLESPACE='sys_tablespace' |\r\n+--------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+\r\n1 row in set (Elapsed: 00:00:00.00)\r\n<\/code><\/pre>\n\n\n\n<\/span>\u6ce8\u610f<\/span><\/h4>\n\n\n\nGBase 8a\u7684\u6570\u636e\u538b\u7f29\u6700\u5c0f\u5355\u4f4d\u662fDC\u7ea7\uff0865536\u884c)\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2aDC\u53ea\u4f1a\u67091\u4e2a\u538b\u7f29\u65b9\u6cd5\uff0c\u5982\u679c\u4f60\u4fee\u6539\u4e86\u5b9e\u4f8b\u7ea7\u7684\u914d\u7f6e\u53c2\u6570\uff0c\u5bf9\u4e8e\u8fd9\u7c7b\u6ca1\u6709\u663e\u5f0f\u6307\u5b9a\u538b\u7f29\u65b9\u6cd5\uff0c\u800c\u662f\u91c7\u7528\u9ed8\u8ba4\u5b9e\u4f8b\u7ea7\u7684\u8868\uff0c\u73b0\u6709\u4e0d\u8db31\u4e2aDC\u7684\u6570\u636e\uff0c\u4f1a\u7ee7\u7eed\u4f7f\u7528\u539f\u6709\u7684\u538b\u7f29\u65b9\u6cd5\uff0c\u800c\u65b0\u7684DC\u5c06\u4f7f\u7528\u65b0\u7684\u538b\u7f29\u65b9\u6cd5\u3002\u5176\u7ed3\u679c\u5c31\u662f\u8001\u7684DC\u662f\u8001\u7684\u65b9\u6cd5(\u6570\u636e\u8981\u5148\u8865\u8db3)\uff0c\u65b0\u7684DC\u662f\u65b0\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n
<\/span>\u8868\u7ea7<\/span><\/h3>\n\n\n\n\u5728\u5efa\u8868\u65f6\u6307\u5b9a\u6574\u8868\u7684\u538b\u7f29\u65b9\u6cd5\u3002\u5982\u4e0b\u6837\u4f8b\u6307\u5b9a\u4e861\uff0c3\u538b\u7f29\u65b9\u6cd5\u3002<\/p>\n\n\n\n
gbase> create table t_13_compress(id int, name varchar(100),birth date)compress(1,3);\r\nQuery OK, 0 rows affected (Elapsed: 00:00:00.11)<\/code><\/pre>\n\n\n\n<\/span>\u5217\u7ea7<\/span><\/h3>\n\n\n\n\u5982\u4e0bid\u5217\u6307\u5b9a\u538b\u7f29\u65b9\u6cd51\uff0cname\u6307\u5b9a\u538b\u7f29\u65b9\u6cd55\uff0cdate\u4f7f\u7528\u8868\u7ea7\u6307\u5b9a\u7684\u538b\u7f29\u65b9\u6cd5(1,3)\u4e2d\u76841\u3002\u5982\u679c\u8868\u6ca1\u6709\u6307\u5b9a\uff0c\u5219data\u4f7f\u7528\u5b9e\u4f8b\u7ea7\u5f53\u524d\u914d\u7f6e\u7684\u538b\u7f29\u65b9\u6cd5\u3002<\/p>\n\n\n\n
gbase> create table t_col_compress(id int compress(1), name varchar(100) compress(5),birth date)compress(1,3);\r\nQuery OK, 0 rows affected (Elapsed: 00:00:00.10)\r\n<\/code><\/pre>\n\n\n\n<\/span>Summary<\/span><\/h2>\n\n\n\nGBase 8a\u6570\u636e\u5e93\u63d0\u4f9b\u4e86\u591a\u7ea7\u538b\u7f29\u7c92\u5ea6\uff0c\u4ee5\u53ca\u51e0\u79cd\u538b\u7f29\u7c92\u5ea6\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u3002\u9ad8\u538b\u7f29\u8282\u7701\u4e86\u78c1\u76d8\u7a7a\u95f4\uff0c\u4f46\u5e26\u6765\u7684\u662f\u538b\u7f29\u6216\u89e3\u538b\u7f29\u6027\u80fd\u7684\u635f\u5931\uff0c\u4e0d\u5b58\u5728\u4e00\u79cd\u65e2\u9ad8\u6548\u538b\u7f29\uff0c\u53c8\u6027\u80fd(\u538b\u7f29\u89e3\u538b\u7f29)\u4f18\u5f02\u7684\u7b97\u6cd5\uff0c\u5982\u679c\u6709\uff0c\u90a3\u4e48\u5b83\u4e00\u5b9a\u4f1a\u6210\u4e3a\u4e1a\u754c\u3010\u9ed8\u8ba4\u3011\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u4ecb\u7ecdGBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u63d0\u4f9b\u7684\u6570\u636e\u538b\u7f29\u7b97\u6cd5\uff0c\u5bf9\u8868\u3001\u5217\u8fdb\u884c\u538b\u7f29\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u540c\u65f6\u4e5f\u63d0\u4f9b\u4e86\u5b9e\u4f8b\u7ea7\u914d\u7f6e\u53c2\u6570\u505a\u9ed8\u8ba4\u538b\u7f29\u8bbe\u7f6e\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-5087","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=5087"}],"version-history":[{"count":6,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5087\/revisions"}],"predecessor-version":[{"id":5094,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5087\/revisions\/5094"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=5087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=5087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=5087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}