Well, the C version I borrowed from dumpitils seems to work great. Any
reason I shouldn't stay with that?
Best,
David
Sent from my iPhone
On Oct 14, 2008, at 7:44, Hannu Krosing <[EMAIL PROTECTED]> wrote:
On Sun, 2008-10-12 at 14:39 -0700, David E. Wheeler wrote:
On Oct 12, 2008, at 14:11, Tom Lane wrote:
You'd have to parse the result of version().
As I figured. This is what I'm trying:
if performance is not critical, then you could use this:
hannu=# create or replace function pg_version_num() returns int
language
SQL as $$
select
10000 *
cast(substring(version()
from
'^PostgreSQL +([0-9]+)[.][0-9]+[.][0-9]+ +') as int)
+
100 *
cast(substring(version()
from
'^PostgreSQL +[0-9]+[.]([0-9]+)[.][0-9]+ +') as int)
+
cast(substring(version()
from
'^PostgreSQL +[0-9]+[.][0-9]+[.]([0-9]+) +') as int);
$$;
CREATE FUNCTION
hannu=# select pg_version_num();
pg_version_num
----------------
80303
(1 row)
pg_version_num(PG_FUNCTION_ARGS)
{
#ifdef PG_VERSION_NUM
PG_RETURN_INT32(PG_VERSION_NUM);
#else
/* Code borrowed from dumputils.c. */
int cnt;
int vmaj,
vmin,
vrev;
cnt = sscanf(PG_VERSION, "%d.%d.%d", &vmaj, &vmin, &vrev);
if (cnt < 2)
return -1;
if (cnt == 2)
vrev = 0;
PG_RETURN_INT32( (100 * vmaj + vmin) * 100 + vrev );
#endif
Best,
David
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