Re: Blank varchar and text fields

Hi,

Can you try the snapshot driver at
ftp://ftp.postgresql.org/pub/odbc/versions/snapshots/psqlodbclibpq-08_01
_0002.zip please? It will install in parallel with the existing driver
as PostgreSQL-libpq, so you may need to create a new DSN, or modify your
connection string.

I've found this version seems to fix some string related issues I was
seeing with the old version.

Regards, Dave.

________________________________

From: pgsql-odbc-owner(at)postgresql(dot)org
[mailto:pgsql-odbc-owner(at)postgresql(dot)org] On Behalf Of Peter L.
Sent: 21 July 2005 19:51
To: pgsql-odbc(at)postgresql(dot)org
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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