摘要:
Hive Tables将HIVE_HOME/conf/hive-site.xml文件copy到SPARK_HOME/conf/下When not configured by the hive-site.xml, the context automatically createsmetastore_d... 阅读全文
摘要:
Beeline – 一个新的命令行ShellHiveServer2 supports a new command shell Beeline that works with HiveServer2. It's a JDBC client that is based on the SQLLine CL... 阅读全文
摘要:
sqlContext总的一个过程如下图所示:SQL语句经过SqlParse解析成UnresolvedLogicalPlan;使用analyzer结合数据数据字典(catalog)进行绑定,生成resolvedLogicalPlan;使用optimizer对resolvedLogicalPlan进行优... 阅读全文