Kouhei Sutou
null+****@clear*****
Fri Mar 7 19:03:13 JST 2014
Kouhei Sutou 2014-03-07 19:03:13 +0900 (Fri, 07 Mar 2014) New Revision: 5eb3e973706e6be5272d924d08728a105bbdf56c https://github.com/groonga/groonga/commit/5eb3e973706e6be5272d924d08728a105bbdf56c Message: doc: add column Added files: doc/source/reference/column.txt Added: doc/source/reference/column.txt (+24 -0) 100644 =================================================================== --- /dev/null +++ doc/source/reference/column.txt 2014-03-07 19:03:13 +0900 (3838d3c) @@ -0,0 +1,24 @@ +.. -*- rst -*- + +.. highlightlang:: none + +Column +====== + +Column is a data store object or an inverted index object for fast search. + +A column belongs to a table. Table has zero or more columns. + +Both data store column and index column have type. Type of data store +column specifies data range. In other words, it is "value type". Type +of index column specifies set of documents to be indexed. In other +words, it must be a table. + +Here are data store columns: + + * :doc:`columns/scalar` + * :doc:`columns/vector` + +Here is an index column: + + * :doc:`columns/index` -------------- next part -------------- HTML����������������������������...Download