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Diffstat (limited to 'doc/src/sgml/spgist.sgml')
| -rw-r--r-- | doc/src/sgml/spgist.sgml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/src/sgml/spgist.sgml b/doc/src/sgml/spgist.sgml index 054234784f..cfb2b3c836 100644 --- a/doc/src/sgml/spgist.sgml +++ b/doc/src/sgml/spgist.sgml @@ -217,6 +217,14 @@ </para> <para> + When an <acronym>SP-GiST</acronym> index is created with + <literal>INCLUDE</literal> columns, the values of those columns are also + stored in leaf tuples. The <literal>INCLUDE</literal> columns are of no + concern to the <acronym>SP-GiST</acronym> operator class, so they are + not discussed further here. + </para> + + <para> Inner tuples are more complex, since they are branching points in the search tree. Each inner tuple contains a set of one or more <firstterm>nodes</firstterm>, which represent groups of similar leaf values. |