hive
In Hive, does "Load data local inpath" overwrite existing data or append?
I am hoping to run an impo开发者_开发技巧rt into Hive on a cron, and was hoping just using \"load data local inpath \'/tmp/data/x\' into table X\" into a table would be sufficient.[详细]
2023-02-22 05:18 分类：问答Create temporary table in Hive?
Does Hive support temporary 开发者_如何学Gotables? I can\'t find it in the apache docs. As of Hive 0.14.0 Thanks to @hwrdprkns for commenting. As of Hive 0.14.0 there is support for temporary tables h[详细]
2023-02-19 00:26 分类：问答How to convert .txt file to Hadoop's sequence file format
To effectively utilise map-reduce jobs in Hadoop, i need data to be stored in hadoop\'s sequence file format. However,currently the data is only in flat .txt开发者_开发问答 format.Can anyone suggest a[详细]
2023-02-17 22:41 分类：问答How to make hive load meta store from certain path instead of creating at the current directory?
I\'m using Hive for some data processing. But whenever I start the Hive-Shell it creates a metastore at the current directory and I can not access to my tables which I created in another directory. Th[详细]
2023-02-16 14:32 分类：问答Adding a new volume to a pseudo-distributed Hadoop node failing silently
Im attempting to add a new volume to a Hadoop pseudo-distributed node, by adding the location of the volume in dfs.name.dir in hdfs-site.xml, and i can see the lock file in this location - but try as[详细]
2023-02-13 09:51 分类：问答Automated Testing in Apache Hive
I am about to embark on a project using Apache Hadoop/Hive which will involve a collection of hive query scripts to produce data feeds for various down stream applications.These scripts seem like idea[详细]
2023-02-13 03:16 分类：问答What are the consequences of adding a column to an existing HIVE table?
Suppose that a couple hundred Gigs after starting to use HIVE I want to add a column. From the various articles & pages I hav开发者_如何学编程e seen, I cannot understand the consequences in terms[详细]
2023-02-12 03:21 分类：问答Hive with Lucene
Is it possible 开发者_StackOverflow中文版to use Hive for querying Lucene index which is distributed over Hadoop???Hadapt is a startup whose software bridges Hadoop with a SQL front-end (like Hive) and[详细]
2023-02-07 09:45 分类：问答Is Hive QL have same expressive power as writing your own MapReduce Jobs directly on Hadoop?
To put in other words, Is there a problem that can be solved by directly defining your map reduce jobs, but for which you cannot form a Hive QL query?[详细]
2023-02-07 08:21 分类：问答Specifying compression codec for a INSERT OVERWRITE SELECT in Hive
I have a hive table like CREATE TABLE beacons ( foo string, bar string, foonotbar string ) COMMENT \"Digest of daily beacons, by day\"[详细]
2023-02-07 02:35 分类：问答
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