From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 928492096D for ; Wed, 15 Aug 2018 08:15:07 -0400 (EDT) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing.freelists.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QNFeQ3gZu4jD for ; Wed, 15 Aug 2018 08:15:07 -0400 (EDT) Received: from smtp53.i.mail.ru (smtp53.i.mail.ru [94.100.177.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTPS id 5088620915 for ; Wed, 15 Aug 2018 08:15:07 -0400 (EDT) From: Kirill Shcherbatov Subject: [tarantool-patches] [PATCH v2 0/5] box: indexes by JSON path Date: Wed, 15 Aug 2018 15:14:58 +0300 Message-Id: Sender: tarantool-patches-bounce@freelists.org Errors-to: tarantool-patches-bounce@freelists.org Reply-To: tarantool-patches@freelists.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: tarantool-patches List-subscribe: List-owner: List-post: List-archive: To: tarantool-patches@freelists.org Cc: v.shpilevoy@tarantool.org, Kirill Shcherbatov Branch: http://github.com/tarantool/tarantool/tree/kshch/gh-1012-json-indexes Issue: https://github.com/tarantool/tarantool/issues/1012 Sometimes field data could have complex document structure. When this structure is consistent across whole document, you are able to create an index by JSON path. This came possible with auxiliary structures per tuple_format: tree of intermediate path fields and hashtable refers to leaf field that use path as key. To speed-up data access by JSON index key_part structure extended with offset_slot cache that points to field_map item containing data offset for current tuple. RFC contains detailed description of those concepts. Finally, supported ability to define JSON paths in user-friendly form containing format field name(that could be changed). Changes in v2: - new single-malloc memory management for paths in key_parts and format. - fixed multiple bugs, make vynil engine works: 1) we need to create tuple with holes via routine vy_stmt_new_surrogate_from_key. 2) as vynil engine has two formats - memory format and disk format we enforce offset_slot mapping to be consistent in vy_lsm_new to make key_parts slot caches work. - optimized tuple_init_field map and other tree-walkers routines. - start using format epoch per format. - a little more effective memory management for routine key_def_normalize_json_path - we try to reuse the biggest free chunk if any - multiple checks on attempts to create JSON index on space with incompatible data, duplicates - new tests for JSON paths Kirill Shcherbatov (5): rfc: describe a Tarantool JSON indexes box: introduce slot_cache in key_part box: introduce path field in key_part box: introduce path_hash and tuple_field tree box: specify indexes in user-friendly form doc/rfc/1012-json-indexes.md | 188 ++++++++++++++ src/box/alter.cc | 4 + src/box/errcode.h | 2 +- src/box/index_def.c | 10 +- src/box/key_def.c | 281 ++++++++++++++++++--- src/box/key_def.h | 27 +- src/box/lua/schema.lua | 58 ++++- src/box/lua/space.cc | 5 + src/box/memtx_bitset.c | 8 +- src/box/memtx_engine.c | 5 + src/box/memtx_rtree.c | 6 +- src/box/schema.cc | 12 +- src/box/space.c | 25 ++ src/box/space.h | 10 + src/box/tuple.c | 25 +- src/box/tuple_compare.cc | 123 ++++++++-- src/box/tuple_extract_key.cc | 161 +++++++++--- src/box/tuple_format.c | 573 +++++++++++++++++++++++++++++++++++++++---- src/box/tuple_format.h | 103 +++++++- src/box/tuple_hash.cc | 63 ++++- src/box/vinyl.c | 5 + src/box/vy_log.c | 3 +- src/box/vy_lsm.c | 43 ++++ src/box/vy_point_lookup.c | 2 - src/box/vy_stmt.c | 124 ++++++++-- src/box/vy_stmt.h | 6 +- test/box/misc.result | 51 ++-- test/engine/iterator.result | 2 +- test/engine/tuple.result | 307 +++++++++++++++++++++++ test/engine/tuple.test.lua | 90 +++++++ 30 files changed, 2103 insertions(+), 219 deletions(-) create mode 100644 doc/rfc/1012-json-indexes.md -- 2.7.4