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columnar    
a. 圆柱的,圆筒形的,分纵栏印刷或书写的

圆柱的,圆筒形的,分纵栏印刷或书写的

columnar
adj 1: having the form of a column; "trees with columniform
trunks"; "columnar forms"; "a columnlike tree trunk"
[synonym: {columniform}, {columnar}, {columnlike}]
2: characterized by columns; "columnar construction"


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英文字典中文字典相关资料:


  • sql - What is a columnar database? - Stack Overflow
    How do columnar databases work? The defining concept of a column-store is that the values of a table are stored contiguously by column Thus the classic supplier table from CJ Date's supplier and parts database:
  • snowflake cloud data platform - What is hybrid-columnar storage . . .
    Columnar Storage organizes data by columns rather than rows Each column's data is stored together, allowing for efficient data compression and faster query performance for analytic workloads that typically access a subset of columns
  • Wide column vs column family vs columnar vs column oriented DB . . .
    In genuine column stores, a columnar data layout is adopted such that each column is stored separately on disk Wide-column stores do often support the notion of column families that are stored separately
  • What are the intended uses of a columnar database?
    Columnar databases can definitely access data across different columns By storing columns separately, they offer a few advantages not available in row-based storage: They only need to read the columns accessed in a particular query They make it easy to add new columns to a table They allow an individual column to be compressed, using a compression algorithm optimal for that column They
  • Delete in Postgres citus columnar storage alternatives
    1 I am planning to use citus to store system logs for upto n no of days after which they should be deleted Citus columnar store looked like the perfect database for this until I read this where its mentioned no deletes can be performed on columnar So my question is there an alternate way of achieving delete in the columnar store?
  • How to decrypt a columnar transposition cipher - Stack Overflow
    How to decrypt a columnar transposition cipher Ask Question Asked 7 years, 2 months ago Modified 7 years, 2 months ago
  • Is Cassandra a column oriented or columnar database
    The definition from Wikipedia also helps further: Wide-column stores such as Bigtable and Apache Cassandra are not column stores in the original sense of the term, since their two-level structures do not use a columnar data layout In genuine column stores, a columnar data layout is adopted such that each column is stored separately on disk
  • Efficiently storing data that is partially columnar into a DuckDB . . .
    How could I go about efficiently inserting data into the DuckDB table columnar? The naive easy way would be to brute-force transform the data into a columnar format in-memory, in Python, before inserting it into the DuckDB table
  • azure cosmosdb - More information on Columnar or Column-family data . . .
    The documenation states that the Cosmos DB engine " natively supports multiple data models: key-value, documents, graphs, and columnar " However, I can't seem to find any other information relating specifically to the columnar model There is also information available on the following APIs: DocumentDB APIs Table APIs Graph APIs But nothing on Columnar or Column-family, as described in
  • Open source column-oriented storage engine for PostgreSQL?
    has developed an open source columnar store extension for PostgreSQL It is available under the Apache License v2 0 It supports PostgreSQL 9 3 and higher First, creation the extension and a foreign server:





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