test/fuzz: enable sysprof Follows up #8594 NO_CHANGELOG=testing NO_DOC=testing NO_TEST=testing

box: introduce space:stat() See the doc bot request for the description. Benchmark results: NO_WRAP $ taskset 0x2 compare.py benchmarks ./memtx.perftest.old ./memtx.perftest.new \ --benchmark_min_warmup_time=10 \ --benchmark_repetitions=30 \ --benchmark_report_aggregates_only=true \ --benchmark_filter=TreeReplaceRandomExistingKeys [...] Comparing ./memtx.perftest.old to ./memtx.perftest.new Benchmark Time CPU Time Old Time New CPU Old CPU New ------------------------------------------------------------------------------------------------------------------------------------------------ MemtxFixture/TreeReplaceRandomExistingKeys_mean +0.0097 +0.0097 1073 1084 1073 1084 MemtxFixture/TreeReplaceRandomExistingKeys_median +0.0075 +0.0075 1062 1070 1062 1070 MemtxFixture/TreeReplaceRandomExistingKeys_stddev -0.1207 -0.1208 56 49 56 49 MemtxFixture/TreeReplaceRandomExistingKeys_cv -0.1291 -0.1292 0 0 0 0 NO_WRAP Closes #6762 @TarantoolBot document Title: Document `space:stat()` Product: Tarantool Since: 3.0 Root document: https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_space/ space_object:stat() - Get statistics on the memory usage Returns a table with the cumulative statistics on the memory usage by tuples in the space. The statistics is grouped by arena types: "memtx" or "malloc". For a detailed description of each field see `tuple_object:info()`. Note: The statistics is collected only for memtx storage engine. For other types of spaces, an empty table is returned. Example: ``` tarantool> box.space.test:stat() --- - tuple: memtx: data_size: 5100699 header_size: 96 field_map_size: 40 waste_size: 143093 malloc: data_size: 18850077 header_size: 70 field_map_size: 28 waste_size: 0 ... ```

box: introduce tuple:info() See the doc bot request for the description. Part of #6762 NO_CHANGELOG=next commit @TarantoolBot document Title: Document `tuple:info()` Product: Tarantool Since: 3.0 Root document: https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_tuple/ tuple_object:info() - Get information about the tuple Returns a table with the following fields: * data_size - Size of the MessagePack data in the tuple. This number equals to number returned by `tuple_object:bsize()`. * header_size - Size of the internal tuple header. * field_map_size - Size of the field map. Field map is used to speed up access to indexed fields of the tuple. * waste_size - The amount of excess memory used to store the tuple in mempool. * arena - Type of the arena where the tuple is allocated. Possible values are: "memtx", "malloc", "runtime".

perf: add TreeReplaceRandomExistingKeys to memtx benchmark It is similar to TreeGetRandomExistingKeys, but performs box_replace() instead of box_index_get(). Needed for #6762 NO_DOC=benchmark NO_TEST=benchmark NO_CHANGELOG=benchmark

sql: fix segmentation fault when JOIN uses USING Before this patch, nameInUsingClause() expected old_col to be non-NULL, but this may not be the case. This patch fixes this feature accordingly. Follow-up #4467 NO_DOC=bugfix NO_CHANGELOG=feature was not released yet