Columns, including the column values, are grouped into column families for performance reasons. A column family is both the logical and physical grouping of columns. A column consists of a column family and a column qualifier. A fully qualified column name consists of a prefix, which is the column family name, followed by a : (colon) and the column qualifier. For example, if a table has a single column family cf1, which has column qualifiers col1, col2, and col3, the columns in the table would be cf1:col1, cf1:col2, and cf1:col3. The column family name must be composed of printable ...
© Deepak Vohra 2016
Deepak Vohra, Apache HBase Primer, 10.1007/978-1-4842-2424-3_13
13. Creating a Column Family
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