[tarantool-patches] Re: [PATCH 0/4] Replace space id with space ptrs in VDBE runtime
v.shpilevoy at tarantool.org
v.shpilevoy at tarantool.org
Sat Mar 24 15:37:59 MSK 2018
See my commits with the final review fixes on you branch (you can squash them, or not - on your choice).
And please fix failing tests on commit "sql: introduce opcodes to operate on system spaces".
> 21 марта 2018 г., в 2:48, Nikita Pettik <korablev at tarantool.org> написал(а):
>
> Branch: https://github.com/tarantool/tarantool/tree/np/gh-3252-slit-dml-and-ddl-sql
> Issue: https://github.com/tarantool/tarantool/issues/3252
>
> In order to avoid additional lookups during VDBE execution,
> it was suggested to pass pointer fetched at query compilation time to
> opcodes which create cursors (i.e. OP_OpenRead and OP_OpenWrite).
> However, any DDL routine may invalidate pointers. Thus, to operate on
> system spaces (which are used during DDL) new opcodes have been introduced:
> OP_SInsert and OP_SDelete. But originally, SQL DDL under hood used nested
> parsing to generate code for non-trivial deletion. For instance:
> "DELETE FROM _INDEX WHERE id = space_id AND iid > 0" -- to remove all
> secondary indexes. To use new operands such nested parsing has been
> substituted with hardcoded VDBE programs.
> Finally, fresh pointer to space can also be obtained at VDBE rutime using
> new opcode OP_SIDtoPtr, which converts space id to ptr and saves it to
> given register. This opcode should be used when it is impossible to avoid
> mixing DDL and DML routine in the same query
> (e.g. CREATE TABLE AS SELECT FROM ...).
>
> Nikita Pettik (4):
> sql: pass space pointer to OP_OpenRead/OpenWrite
> sql: introduce opcodes to operate on system spaces
> sql: rework code generation for DDL routine
> sql: rework OP_OpenWrite/OpenRead
>
> src/box/sql.c | 51 ++++---
> src/box/sql/analyze.c | 17 ++-
> src/box/sql/build.c | 321 ++++++++++++++++++++++---------------------
> src/box/sql/expr.c | 14 +-
> src/box/sql/fkey.c | 11 +-
> src/box/sql/insert.c | 37 ++++-
> src/box/sql/opcodes.c | 51 +++----
> src/box/sql/opcodes.h | 59 ++++----
> src/box/sql/select.c | 11 +-
> src/box/sql/sqliteInt.h | 5 +
> src/box/sql/tarantoolInt.h | 11 +-
> src/box/sql/trigger.c | 27 ++--
> src/box/sql/vdbe.c | 310 +++++++++++++++++++++--------------------
> src/box/sql/vdbe.h | 1 +
> src/box/sql/vdbeInt.h | 1 +
> src/box/sql/vdbeaux.c | 13 ++
> src/box/sql/where.c | 12 +-
> test/sql/transition.result | 11 +-
> test/sql/transition.test.lua | 8 +-
> 19 files changed, 550 insertions(+), 421 deletions(-)
>
> --
> 2.15.1
>
>
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