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01-29-2017
05:33 AM
Yes, I thought partitioning on the pattern of filename. For one type of data I have, it is acceptable since there are only 10-15 different types of file name. However; in another type of data, there is a unique "id" field on filename and this field's frequency is very high. So, there would be the threat of creation of lots of partitions which could be compelling for the catalog server.
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01-27-2017
03:46 AM
With show files, I dont know the record corresponds to which file.
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01-26-2017
03:25 AM
Hi, Is there a way (a virtual column or function) to get the record's filename in impala queries just similar to INPUT__FILE__NAME in hive. There is a jira about that, however there is nothing done by anybody with the jira. Thanks
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Apache Impala