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st: Cannot get date fields to import from PostgreSQL via ODBC


From   Dave Ewart <[email protected]>
To   StataList <[email protected]>
Subject   st: Cannot get date fields to import from PostgreSQL via ODBC
Date   Fri, 23 Sep 2005 15:51:29 +0100

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Hello,

I wonder if someone has seen this before and has found a solution.  Date
types do not appear to import correctly into Stata when loaded via ODBC
from a PostgreSQL database.

I created a table in a PostgreSQL database to demonstrate the following
problem.  The table, as viewed from within a 'psql' console is:

 Column |           Type           | Modifiers 
- --------+--------------------------+-----------
 a      | date                     | 
 b      | time without time zone   | 
 c      | timestamp with time zone |

The data consists of a single record:

# select * from mytable;
     a      |    b     |           c            
- ------------+----------+------------------------
 2005-09-23 | 10:20:30 | 2004-01-01 19:27:03+00
(1 row)

When importing into Stata:

. odbc describe mytable

DataSource: pgstuff (query)
Table:      mytable (load)
- -------------------------------------------------------------------------------
Variable Name                               Variable Type
- -------------------------------------------------------------------------------
a                                           date
b                                           time
c                                           timestamptz
- -------------------------------------------------------------------------------

That looks OK so far ...

. odbc load, exec("select * from mytable")

. list

     +----------------------------------+
     |         a          b           c |
     |----------------------------------|
  1. | 01jan1960   10:20:30   01jan1960 |
     +----------------------------------+

And it's all gone horribly wrong.  The dates import as '01jan1960' (a
'zero' value, I believe, but formatted as a date).

Does anyone have any suggestions for figuring out what's going on here?

System:

Stata 9 / Linux amd64, on Debian Sarge AMD64
odbc-postgresql 07.03.0200-5

Dave.
- -- 
Dave Ewart
[email protected]
Computing Manager, Cancer Epidemiology Unit
Cancer Research UK / Oxford University
PGP: CC70 1883 BD92 E665 B840 118B 6E94 2CFD 694D E370
Get key from http://www.ceu.ox.ac.uk/~davee/davee-ceu-ox-ac-uk.asc
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