diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/indexam.sgml | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/doc/src/sgml/indexam.sgml b/doc/src/sgml/indexam.sgml index 5d8e5574608..9afd7f64179 100644 --- a/doc/src/sgml/indexam.sgml +++ b/doc/src/sgml/indexam.sgml @@ -259,7 +259,8 @@ aminsert (Relation indexRelation, bool *isnull, ItemPointer heap_tid, Relation heapRelation, - IndexUniqueCheck checkUnique); + IndexUniqueCheck checkUnique, + IndexInfo *indexInfo); </programlisting> Insert a new tuple into an existing index. The <literal>values</> and <literal>isnull</> arrays give the key values to be indexed, and @@ -288,6 +289,14 @@ aminsert (Relation indexRelation, </para> <para> + If the index AM wishes to cache data across successive index insertions + within a SQL statement, it can allocate space + in <literal>indexInfo->ii_Context</literal> and store a pointer to the + data in <literal>indexInfo->ii_AmCache</literal> (which will be NULL + initially). + </para> + + <para> <programlisting> IndexBulkDeleteResult * ambulkdelete (IndexVacuumInfo *info, |