Function BTR_create

src/jrd/btr.cpp:866–901

void BTR_create(thread_db* tdbb,
				IndexCreation& creation,
				SelectivityList& selectivity)
{
/**************************************
 *
 *	B T R _ c r e a t e
 *
 **************************************
 *
 * Functional description
 *	Create a new index.
 *
 **************************************/

	SET_TDBB(tdbb);
	const Database* const dbb = tdbb->getDatabase();
	CHECK_DBB(dbb);

	jrd_rel* const relation = creation.relation;
	index_desc* const idx = creation.index;

	// Now that the index id has been checked out, create the index.
	idx->idx_root = fast_load(tdbb, creation, selectivity);

	// Index is created.  Go back to the index root page and update it to
	// point to the index.
	RelationPages* const relPages = relation->getPages(tdbb);
	WIN window(relPages->rel_pg_space_id, relPages->rel_index_root);
	index_root_page* const root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
	CCH_MARK(tdbb, &window);
	root->irt_rpt[idx->idx_id].setRoot(idx->idx_root);
	update_selectivity(root, idx->idx_id, selectivity);

	CCH_RELEASE(tdbb, &window);
}


bool BTR_delete_index(thread_db* tdbb, WIN* window, USHORT id)