diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/cube.sgml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/doc/src/sgml/cube.sgml b/doc/src/sgml/cube.sgml index b995dc7e2ad..9cda8cac972 100644 --- a/doc/src/sgml/cube.sgml +++ b/doc/src/sgml/cube.sgml @@ -186,10 +186,11 @@ <entry><literal>a ~> n</literal></entry> <entry><type>float8</type></entry> <entry> - Get <replaceable>n</replaceable>-th coordinate in <quote>normalized</quote> cube - representation, in which the coordinates have been rearranged into - the form <quote>lower left — upper right</quote>; that is, the - smaller endpoint along each dimension appears first. + Get <replaceable>n</replaceable>-th coordinate of cube in following way: + n = 2 * k - 1 means lower bound of <replaceable>k</replaceable>-th + dimension, n = 2 * k means upper bound of + <replaceable>k</replaceable>-th dimension. This operator is designed + for KNN-GiST support. </entry> </row> |