After reading this thread immediately thought of sqlt, looked inside, no premade thing :) so off to search I went


aww, zip http://search.cpan.org/grep?cpanid=FREW&release=SQL-Translator-0.11018&string=guess&i=1&n=1&C=0
aww, 3 unrelated http://search.cpan.org/grep?cpanid=FREW&release=SQL-Translator-0.11018&string=best&i=1&n=1&C=4

Although these two caught my eye SQL::Translator::Parser::JSON, SQL::Translator::Schema::Field

Then I switched to searching within sql guess type, sql best type, sql match type

Found DBD::mysql::AutoTypes -- automatically assign parameters' sql type to support old DBD::mysql functionality

found inside 

    /^$RE{num}{int}$/ ? DBI::SQL_INTEGER : 
    /^$RE{num}{real}$/ ? DBI::SQL_DOUBLE :

[download]

then found

https://metacpan.org/pod/DBI#sql_type_cast  $sts = DBI::sql_type_cast($sv, $sql_type, $flags); sql_type_cast attempts to cast $sv to the SQL type

Looking inside SQL::Translator::Schema::Field I see the same thing 

use DBI qw(:sql_types);

# Mapping from string to sql constant
our %type_mapping = (
  integer => SQL_INTEGER,
  int     => SQL_INTEGER,

[download]

Food for thought I guess :)

So my one idea (best of the bunch) is to stick it in SQL::Translator::Parser::GuessBestCastTypeMatchPerl , base it on SQL::Translator::Parser::JSON, make it take either perl ref or perl string to safe undumper :) ... so that illegal field names are SQL::Translator::Producer problem (not yours)

Another is Data::InferBestGuessSQLSchemaType but pause says Avoid the too-general nouns like Devel, Sys, Text, Data

?? Send a patch to stick it inside Type::Utils making sure that all the keywords are represented in the docs for search purposes, but Type doesn't feel better than Data -- but yeah, patches are hassles :)

So maybe SQL::Abstract::InferSchemaTypesByBestMatchGuessFromPerlData :)

I definitely feel sql/schema/type/infer ought to be in the name some how, and the all the keywords in the  =head1 NAME  ... NAME - Perl extension ...

In reply to Re: RFC: Name and/or API for module ("Type::FromData") ( infer sql best guess cast type match sqltranslator ) by Anonymous Monk
in thread RFC: Name and/or API for module ("Type::FromData") by Corion

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