[Tarantool-patches] [PATCH 0/4] sql: fix NUMBER conversion issues

[Nikita Pettik <korablev@tarantool.org>]

Branch: https://github.com/tarantool/tarantool/tree/np/gh-4233-fix-number-field-type-in-sql
Issue:
https://github.com/tarantool/tarantool/issues/4233
https://github.com/tarantool/tarantool/issues/4463

This patch-set makes NUMBER behaviour be closer to the one defined
in Tarantool NoSQL.

This is rework of https://github.com/tarantool/tarantool/tree/imeevma/gh-4233-fix-number-field-type-in-sql
Functional changes: fixed CAST boolean AS NUMBER operation - now it is
allowed to cast booleans to number type (since boolean can be casted to
integer, and in turn NUMBER type comprises integer type).
Refactoring: splitted patch in a series of independent ones; fixed
codestyle of sqlVdbeMemNumerify().

To the one who will review: this patch-series goes-around since
athour of original patch does not agree with suggested (by me) fixes.
Hence I guess second review iteration is required.

Nikita Pettik (4):
  sql: remove cast to INT during FP arithmetic ops
  sql: refactor sqlVdbeMemNumerify()
  sql: fix CAST AS NUMBER operator
  sql: do not force FP representation for NUMBER field

 src/box/sql/vdbe.c                   |  15 +----
 src/box/sql/vdbeInt.h                |  12 +++-
 src/box/sql/vdbemem.c                |  65 +++++++--------------
 test/sql-tap/cast.test.lua           |  32 +++++------
 test/sql-tap/e_select1.test.lua      |   2 +-
 test/sql-tap/numcast.test.lua        | 106 ++++++++++++++++++++++++++++++++++-
 test/sql-tap/sort.test.lua           |  12 ++--
 test/sql-tap/tkt-91e2e8ba6f.test.lua |  12 ++--
 test/sql/boolean.result              |   9 ++-
 test/sql/integer-overflow.result     |   2 +-
 test/sql/types.result                |   2 +-
 11 files changed, 176 insertions(+), 93 deletions(-)

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2.15.1