[Tarantool-patches] [PATCH v2 0/2] Make tree hint optional

[Aleksandr Lyapunov]

Add an option that disables hints in tree indexes.

https://github.com/tarantool/tarantool/issues/4927
https://github.com/tarantool/tarantool/tree/alyapunov/gh-4927-optional-hints

v2 changes:
 * int template parameter was replaced by bool.
 * fix compilation error, just a couple of casts added:

@@ -542,7 +542,7 @@ tree_iterator_start(struct iterator *iterator, struct tuple **ret)
        struct txn *txn = in_txn();
        struct space *space = space_by_id(iterator->space_id);
        bool is_rw = txn != NULL;
-       uint32_t mk_index = is_multikey ? res->hint : 0;
+       uint32_t mk_index = is_multikey ? (uint32_t)res->hint : 0;
        *ret = memtx_tx_tuple_clarify(txn, space, *ret, iid, mk_index, is_rw);
        if (*ret == NULL) {
                return iterator->next(iterator, ret);
@@ -734,13 +734,14 @@ memtx_tree_index_get(struct index *base, const char *key,
        struct txn *txn = in_txn();
        struct space *space = space_by_id(base->def->space_id);
        bool is_rw = txn != NULL;
-       uint32_t mk_index = base->def->key_def->is_multikey ? res->hint : 0;
+       bool is_multikey = base->def->key_def->is_multikey;
+       uint32_t mk_index = is_multikey ? (uint32_t)res->hint : 0;
        *result = memtx_tx_tuple_clarify(txn, space, res->tuple, base->def->iid,
                                         mk_index, is_rw);
        return 0;
 }
 


Aleksandr Lyapunov (1):
  memtx: make tuple compare hints optional

Ilya Kosarev (1):
  memtx: move memtx_tree.c to memtx_tree.cc

 src/box/CMakeLists.txt              |    2 +-
 src/box/index_def.c                 |    2 +
 src/box/index_def.h                 |    6 +
 src/box/lua/schema.lua              |   53 ++
 src/box/lua/space.cc                |    7 +
 src/box/memtx_engine.c              |    2 +
 src/box/memtx_tree.c                | 1523 -------------------------------
 src/box/memtx_tree.cc               | 1726 +++++++++++++++++++++++++++++++++++
 src/lib/salad/bps_tree.h            |   19 +
 test/box/alter.result               |  103 ++-
 test/box/alter.test.lua             |   34 +
 test/box/errinj.result              |    3 +-
 test/box/tree_pk.result             |  314 +++++++
 test/box/tree_pk.test.lua           |  115 +++
 test/box/tree_pk_multipart.result   |  153 ++++
 test/box/tree_pk_multipart.test.lua |   64 ++
 16 files changed, 2598 insertions(+), 1528 deletions(-)
 delete mode 100644 src/box/memtx_tree.c
 create mode 100644 src/box/memtx_tree.cc

-- 
2.7.4