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Re: Blank varchar and text fields

From: "Miguel Juan" <mjuan(at)cibal(dot)es>
To: "Peter L(dot)" <pluichinger2(at)yahoo(dot)com>
Cc: <pgsql-odbc(at)postgresql(dot)org>
Subject: Re: Blank varchar and text fields
Date: 2005-07-22 07:59:34
Message-ID: 005501c58e93$4ce5ea40$07c8a8c0@Miguel (view raw or flat)
Thread:
Lists: pgsql-odbc
Hello,

You can use the version 7.x of the driver. Version 8.x of the driver 
introduced this odd functionallity that returns blanks for all string data 
if you work with some products. This happens to me with all tha applications 
that use Borland BDE.

NOTE: I didn't try the last (libpq) version.

Regards

Miguel Juan


----- Original Message ----- 
From: Peter L.
To: pgsql-odbc(at)postgresql(dot)org
Sent: Thursday, July 21, 2005 8:50 PM
Subject: [ODBC] Blank varchar and text fields


I'm using the latest release version of the driver dll psqlodbc-08_00_0101 
with a report writing application called R&R Report writer.  When a report 
queries the database for data to display, all of the varchar and text fields 
come back blank.  After doing some research, the only evidence of the cause 
that I'm finding is that the cbValueMax for those fields is 1 instead of the 
actual length of the text buffer.  Can anyone suggest a solution or where in 
the code I should look to fix this problem?

Log snippets:
psqldobc.log
conn=43202584, query='select * from www.quote where 0 = 1'
    [ fetched 0 rows ]
conn=43202584, query='select u.nspname, c.relname, a.attname, a.atttypid, 
t.typname, a.attnum, a.attlen, a.atttypmod, a.attnotnull, c.relhasrules, 
c.relkind from pg_catalog.pg_namespace u, pg_catalog.pg_class c, 
pg_catalog.pg_attribute a, pg_catalog.pg_type t where u.oid = c.relnamespace 
and (not a.attisdropped) and c.oid= a.attrelid and a.atttypid = t.oid and 
(a.attnum > 0) and c.relname = 'quote' and u.nspname = 'www'  and nspname !~ 
'^pg_' order by u.nspname, c.relname, attnum'
    [ fetched 72 rows ]
...
PGAPI_Columns: table='quote',field_name='quote_id',type=23,name='int4'
PGAPI_Columns: 
table='quote',field_name='account_name',type=1043,name='varchar'
PGAPI_Columns: table='quote',field_name='responses',type=25,name='text'
...
The 2th item was truncated
The buffer size = 1 and the value is 'Hydro Aluminum Automotive'
The 3th item was truncated
The buffer size = 1 and the value is ' The crimp specification is 15.9mm or 
.626 inch.  Unfortunataly there is not a 43 series die that goes that 
tight.'

mylog.log

[940]READING ATTTYPMOD
[940]CI_read_fields: fieldname='quote_id', adtid=23, adtsize=4, atttypmod=-1
[940]READING ATTTYPMOD
[940]CI_read_fields: fieldname='account_name', adtid=1043, adtsize=-1, 
atttypmod=80
[940]READING ATTTYPMOD
[940]CI_read_fields: fieldname='responses', adtid=25, adtsize=-1, 
atttypmod=-1
...
[940][SQLDescribeColW][940]PGAPI_DescribeCol: entering.3..
[940]PARSE: DescribeCol: icol=2, stmt=43230000, stmt->nfld=23, 
stmt->fi=43197072
[940]DescribeCol: getting info for icol=2
[940]PARSE: fieldtype=23, col_name='quote_id', column_size=10
[940]describeCol: col 2 fieldname = 'quote_id'
[940]describeCol: col 2 fieldtype = 23
[940]describeCol: col 2 column_size = 10
[940]describeCol: col 2 *pfSqlType = 4
[940]describeCol: col 2  *pcbColDef = 10
[940]describeCol: col 2  *pibScale = 0
[940]describeCol: col 2  *pfNullable = 1
[940][SQLDescribeColW][940]PGAPI_DescribeCol: entering.16..
[940]PARSE: DescribeCol: icol=15, stmt=43230000, stmt->nfld=35, 
stmt->fi=43196648
[940]DescribeCol: getting info for icol=15
[940]PARSE: fieldtype=1043, col_name='account_name', column_size=80
[940]describeCol: col 15 fieldname = 'account_name'
[940]describeCol: col 15 fieldtype = 1043
[940]describeCol: col 15 column_size = 80
[940]getCharColumnSize: type=1043, col=15, unknown = 0
[940]describeCol: col 15 *pfSqlType = -9
[940]describeCol: col 15  *pcbColDef = 80
[940]describeCol: col 15  *pibScale = 0
[940][SQLDescribeColW][940]PGAPI_DescribeCol: entering.9..
[940]PARSE: DescribeCol: icol=8, stmt=43230000, stmt->nfld=35, 
stmt->fi=43196648
[940]DescribeCol: getting info for icol=8
[940]PARSE: fieldtype=25, col_name='responses', column_size=8190
[940]describeCol: col 8 fieldname = 'responses'
[940]describeCol: col 8 fieldtype = 25
[940]describeCol: col 8 column_size = 8190
[940]describeCol: col 8 *pfSqlType = -10
[940]describeCol: col 8  *pcbColDef = 8190
[940]describeCol: col 8  *pibScale = 0
[940]describeCol: col 8  *pfNullable = 1
...
[940][SQLBindCol][940]PGAPI_BindCol: entering...
[940]**** PGAPI_BindCol: stmt = 43230000, icol = 1
[940]**** : fCType=4 rgb=18a490 valusMax=4 pcb=16de88
[940]extend_getdata_info: entering ... self=43230348, gdata_allocated=17, 
num_columns=18
[940]exit extend_gdata_info
[940]       bound buffer[17] = 1614992
[940][SQLBindCol][940]PGAPI_BindCol: entering...
[940]**** PGAPI_BindCol: stmt = 43230000, icol = 2
[940]**** : fCType=1 rgb=12d564 valusMax=1 pcb=cc008
[940]extend_getdata_info: entering ... self=43230348, gdata_allocated=6, 
num_columns=7
[940]exit extend_gdata_info
[940]       bound buffer[6] = 1234276
[940]**** PGAPI_BindCol: stmt = 43230000, icol = 3
[940]**** : fCType=1 rgb=18a574 valusMax=16 pcb=16e088
[940]extend_getdata_info: entering ... self=43230348, gdata_allocated=20, 
num_columns=21
[940]exit extend_gdata_info
[940]       bound buffer[20] = 1615220



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Subject: Re: Blank varchar and text fields
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