[PATCH v2 0/2] vinyl: fix bsize and len

[Vladimir Davydov]

This patch set fixes bsize and len for vinyl spaces and indexes.
For more details, see patch 2. Patch 1 adds some missing stats
to vinyl-specific index.info() which are needed to calculate
index.bsize().

https://github.com/tarantool/tarantool/issues/2863
https://github.com/tarantool/tarantool/issues/3056
https://github.com/tarantool/tarantool/tree/gh-3056-vy-fix-bsize

v1: <cover.1517759115.git.vdavydov.dev at gmail.com>

Changes in v2:
 - Account size of binary data stored on disk in index.bsize()
   for secondary indexes.
 - Add comments to the code explaining the meaning of bsize
   and len in vinyl.
 - Add tests checking that bsize and len work as expected for
   secondary indexes.

Vladimir Davydov (2):
  vinyl: report size of memory used for indexing data in index.info
  vinyl: implement space.bsize, index.bsize, and index.len

 src/box/vinyl.c                |  47 +++++++-
 src/box/vy_index.c             |  16 +++
 src/box/vy_index.h             |   8 ++
 test/vinyl/constraint.result   |  16 ---
 test/vinyl/constraint.test.lua |   9 --
 test/vinyl/ddl.result          |  30 -----
 test/vinyl/ddl.test.lua        |  15 ---
 test/vinyl/info.result         | 244 +++++++++++++++++++++++++++++++++++++++--
 test/vinyl/info.test.lua       |  67 +++++++++++
 9 files changed, 370 insertions(+), 82 deletions(-)

-- 
2.11.0