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Re: Add Unicode Support to the DBI
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From:
H.Merijn Brand
Date:
November 9, 2011 14:17
Subject:
Re: Add Unicode Support to the DBI
Message ID:
20111109231743.5325df79@pc09.procura.nl
On Wed, 09 Nov 2011 19:41:33 +0000, "Martin J. Evans"
<martin.evans@easysoft.com> wrote:
> Your going to have a lot of problems with this test code and DBD::Unify
> as we previously discovered that DBD::Unify does not decode the data
> coming back from the database itself but it can be decoded by any Perl
> script using DBD::Unify into the correct data. Any chance you could
> change the test code to print out the results of type_info_all for
> DBD::Unify and send me them?
Right, I have this:
--8<---
$type_info_all = [
{ TYPE_NAME => 0,
DATA_TYPE => 1,
COLUMN_SIZE => 2,
LITERAL_PREFIX => 3,
LITERAL_SUFFIX => 4,
CREATE_PARAMS => 5,
NULLABLE => 6,
CASE_SENSITIVE => 7,
SEARCHABLE => 8,
UNSIGNED_ATTRIBUTE => 9,
FIXED_PREC_SCALE => 10,
AUTO_UNIQUE_VALUE => 11,
LOCAL_TYPE_NAME => 12,
MINIMUM_SCALE => 13,
MAXIMUM_SCALE => 14,
SQL_DATA_TYPE => 15,
SQL_DATETIME_SUB => 16,
NUM_PREC_RADIX => 17,
INTERVAL_PRECISION => 18,
},
# TYPE_NAME DATA_TYPE SIZE PFX SFX PARAMS N C S UNSIG FPS AUTO LOCAL MINSC MAXSC SDT SDS RADIX PREC
[ "UNKNOWN", 0, undef,undef,undef,undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
# [ "GIANT AMOUNT", undef,undef,undef,"PRECISION,SCALE",1,0,3,0, undef,undef,undef,2, 2, undef,undef,undef,undef, ],
[ "HUGE AMOUNT", -207, undef,undef,undef,"PRECISION,SCALE",1,0,3,0, undef,undef,undef,2, 2, undef,undef,undef,undef, ],
[ "AMOUNT", -206, undef,undef,undef,"PRECISION,SCALE",1,0,3,0, undef,undef,undef,2, 2, undef,undef,undef,undef, ],
[ "VARBINARY", SQL_VARBINARY, undef,"'", ,"'", undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
[ "BINARY", SQL_BINARY, undef,undef,undef,undef, 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "CHAR", SQL_CHAR, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "CURRENCY", -218, undef,undef,undef,"PRECISION,SCALE",1,0,3,0, 2, undef,undef,0, 8, undef,undef,undef,undef, ],
[ "TIMESTAMP", SQL_TIMESTAMP, undef,undef,undef,undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
[ "DATE", SQL_DATE, undef,undef,undef,undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
[ "DECIMAL", SQL_DECIMAL, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "DOUBLE PRECISION", SQL_DOUBLE, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "FLOAT", SQL_FLOAT, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "HUGE INTEGER", SQL_BIGINT, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, 0, undef,undef,undef,undef, ],
[ "INTEGER", SQL_INTEGER, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "NUMERIC", SQL_NUMERIC, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, 0, undef,undef,undef,undef, ],
[ "REAL", SQL_REAL, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, undef,undef,undef,undef,undef, ],
[ "SMALLINT", SQL_SMALLINT, undef,undef,undef,"PRECISION", 1,0,3,0, undef,undef,undef,0, 0, undef,undef,undef,undef, ],
[ "TEXT", SQL_LONGVARCHAR, undef,"'", ,"'", undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
[ "TIME", SQL_TIME, undef,undef,undef,undef, 1,0,3,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef, ],
];
my %odbc_types = map { ( $_->[0] => $_->[1], $_->[1] => $_->[0] ) }
[ -5 => "BIGINT" ], # SQL_BIGINT
[ -3 => "VARBINARY" ], # SQL_VARBINARY
[ -2 => "BINARY" ], # SQL_BINARY
[ -1 => "TEXT" ], # SQL_LONGVARCHAR
[ 0 => "UNKNOWN_TYPE" ], # SQL_UNKNOWN_TYPE
[ 1 => "CHAR" ], # SQL_CHAR
[ 2 => "NUMERIC" ], # SQL_NUMERIC
[ 3 => "DECIMAL" ], # SQL_DECIMAL
[ 4 => "INTEGER" ], # SQL_INTEGER
[ 5 => "SMALLINT" ], # SQL_SMALLINT
[ 6 => "FLOAT" ], # SQL_FLOAT
[ 7 => "REAL" ], # SQL_REAL
[ 8 => "DOUBLE PRECISION"], # SQL_DOUBLE
[ 9 => "DATE" ], # SQL_DATE
[ 10 => "TIME" ], # SQL_TIME
[ 11 => "TIMESTAMP" ], # SQL_TIMESTAMP
[ 12 => "VARCHAR" ], # SQL_VARCHAR
[ 16 => "BOOLEAN" ], # SQL_BOOLEAN
[ 19 => "ROW" ], # SQL_ROW
[ 20 => "REF" ], # SQL_REF
[ 30 => "BLOB" ], # SQL_BLOB
[ 40 => "CLOB" ], # SQL_CLOB
;
$odbc_types{DOUBLE} = $odbc_types{"DOUBLE PRECISION"};
my %uni_types = map { ( $_->[0] => $_->[1], $_->[1] => $_->[0] ) }
[ -18 => "CURRENCY" ], # SQLAMT64
[ -17 => "HUGE INTEGER" ], # SQLINT64
[ -12 => "BYTE" ], # SQLBYTE
[ -11 => "HUGE DATE" ], # SQLHDATE
[ -10 => "BINARY" ], # SQLBINARY
[ -9 => "TEXT" ], # SQLTEXT
[ -7 => "TIME" ], # SQLSMTIME
[ -6 => "HUGE AMOUNT" ], # SQLHUGEAMT
[ -4 => "AMOUNT" ], # SQLAMOUNT
[ -3 => "DATE" ], # SQLDATE
[ 0 => "NOTYPE" ], # SQLNOTYPE
[ 1 => "CHAR" ], # SQLCHAR
[ 2 => "NUMERIC" ], # SQLNUMERIC
[ 3 => "DECIMAL" ], # SQLDECIMAL
[ 4 => "INTEGER" ], # SQLINTEGER
[ 5 => "SMALLINT" ], # SQLSMINT
[ 6 => "FLOAT" ], # SQLFLOAT
[ 7 => "REAL" ], # SQLREAL
[ 8 => "DOUBLE PRECISION"], # SQLDBLPREC
;
$uni_types{CHARACTER} = $uni_types{CHAR};
$uni_types{DOUBLE} = $uni_types{"DOUBLE PRECISION"};
sub odbc_type
{
my $t = shift;
defined $t or return 0;
$t = $odbc_types{uc $t} || $t;
return $t;
} # uni_type
sub uni_type
{
my $t = shift;
defined $t or return 0;
$t = $uni_types{uc $t} || $t;
return $t;
} # uni_type
-->8---
which shows I have set up the DATA_TYPE, not the SQL_DATA_TYPE
shall I just copy DATA_TYPE to SQL_DATA_TYPE?
--
H.Merijn Brand http://tux.nl Perl Monger http://amsterdam.pm.org/
using 5.00307 through 5.14 and porting perl5.15.x on HP-UX 10.20, 11.00,
11.11, 11.23 and 11.31, OpenSuSE 10.1, 11.0 .. 11.4 and AIX 5.2 and 5.3.
http://mirrors.develooper.com/hpux/ http://www.test-smoke.org/
http://qa.perl.org http://www.goldmark.org/jeff/stupid-disclaimers/
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