[Tarantool-patches] [PATCH v4 1/3] sql: fix CAST() from STRING to INTEGER

Nikita Pettik korablev at tarantool.org
Fri Apr 10 16:05:18 MSK 2020


On 10 Apr 13:43, Mergen Imeev wrote:
> Sorry, forgot to answer one question.
> 
> On Fri, Apr 10, 2020 at 01:39:45PM +0300, Mergen Imeev wrote:
> > Hi! Thank you for review. My answers and new patch below.
> > 
> > On Fri, Mar 27, 2020 at 04:46:04PM +0000, Nikita Pettik wrote:
> > > On 27 Mar 14:33, imeevma at tarantool.org wrote:
> > > 
> > > Could you please find Peter's table containing current/expected cast
> > > behaviours and verify that this patch doesn't contradict it?
> > > 
> Here:
> https://github.com/tarantool/doc/blob/pgulutzan-2.3/doc/reference/reference_sql/sql.rst
> 
> ~                To BOOLEAN | To INTEGER | To NUMBER | To STRING | To VARBINARY
> ---------------  ----------   ----------   ---------   ---------   ------------
> From BOOLEAN   | AAA        | A--        | ---       | A--       | ---
> From INTEGER   | A--        | AAA        | AAA       | AAA       | ---
> From NUMBER    | A--        | SSA        | AAA       | AAA       | ---
> From STRING    | S--        | SSS        | SSS       | AAA       | A--
> From VARBINARY | ---        | ---        | ---       | A--       | AAA
> 
> Should be fine since we have S for CAST() and implicit
> cast from STRING to INTEGER.

This table describes current behaviour. Could you also find the table
which shows expected one?
 


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