stored as qarquet
时间: 2024-05-26 14:13:48 浏览: 12
Parquet is a columnar storage format for Hadoop that provides efficient data compression and encoding schemes to improve query performance. It is commonly used for big data processing and analytics. When data is stored in Parquet format, it can be queried and analyzed using tools like Apache Spark, Apache Hive, and Apache Impala. The file extension for Parquet files is ".parquet".
相关问题
stored as qarquet是什么意思
"stored as parquet" 指的是一种数据存储格式,它是一种列式存储格式,适用于大规模数据处理和分析。它能够更高效地压缩数据,减少了存储空间的使用,同时也能够提高数据处理的速度。 "stored as parquet" 的意思是将数据以 parquet 格式进行存储。parquet 是一种开源的列式存储格式,被广泛应用于大数据处理和分析领域。而 qarquet 可能是一种拼写错误,正确的应该是 parquet。
STORED AS ORC
"STORED AS ORC" is a clause used in HiveQL (Hive Query Language) to specify that data should be stored in the ORC (Optimized Row Columnar) file format. ORC is a high-performance file format designed for storing large amounts of structured data. It is optimized for querying and analytics and supports advanced compression techniques to minimize storage requirements. When data is stored as ORC, it can be queried faster and with greater efficiency than other file formats.
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