I could manage to identify/describe interval fields by testing the different values
returned by PQfmod().
Could someone confirm that PQfmod() returns will not change in future versions?
I have seen in the docs that there is a deprecated compile-time option that defines
how time, timestamp and intervals are stored (using double or int64), I guess this
should not affect the value returned by PQfmod()... right?
Thanks!
Seb
Sebastien FLAESCH wrote:
Further, little libpq question:
When using INTERVAL types, can I rely on PQfmod(), PQfsize() to determine
the exact definition of the INTERVAL precision?
=> what YEAR/MONTH/DAY/HOUR/MINUTE/SECOND fields where used to create
the column.
I get different values for the type modifier, but how to interpret this?
Can someone point me to the documentation or source code where I can find
more details about this?
I found this:
http://www.postgresql.org/docs/8.4/static/libpq-exec.html#LIBPQ-EXEC-SELECT-INFO
But there are not much details in PQfmod() description...
Thanks!
Seb
Sebastien FLAESCH wrote:
Hi all,
Just testing 8.4rc2 INTERVALs...
According to the doc, INTERVAL output format is controlled by SET
intervalstyle.
I am writing an interface/driver and need a solution to fetch/convert
interval
values independently from the current format settings...
I could force my driver to implicitly set the intervalstyle to
iso_8601, but I
would prefer to leave this in the hands of the programmer...
Imagine you have to write and ODBC interface/driver with libpq that
must support
the SQLINTERVAL C structure, how would you deal with PostgreSQL
intervals?
Is it possible to query the current intervalstyle?
Thanks!
Seb
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