\d+ should display the storage options for columns

Oleg pointed out to me here that while we have a command to *set* the toast
storage characteristics there's no actual supported way to display the current
settings.

It seems like this would be a reasonable thing to add to \d+

Index: src/bin/psql/describe.c
===================================================================
RCS file: /home/stark/src/REPOSITORY/pgsql/src/bin/psql/describe.c,v
retrieving revision 1.170
diff -c -r1.170 describe.c
*** src/bin/psql/describe.c 5 May 2008 01:21:03 -0000 1.170
--- src/bin/psql/describe.c 21 May 2008 18:07:13 -0000
***************
*** 865,871 ****

if (verbose)
{
! cols++;
headers[cols - 1] = _("Description");
}

--- 865,872 ----

if (verbose)
{
! cols+=2;
! headers[cols - 2] = _("Storage");
headers[cols - 1] = _("Description");
}

***************
*** 877,883 ****
"\n (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)"
"\n FROM pg_catalog.pg_attrdef d"
"\n WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef),"
! "\n a.attnotnull, a.attnum");
if (verbose)
appendPQExpBuffer(&buf, ", pg_catalog.col_description(a.attrelid, a.attnum)");
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_attribute a");
--- 878,884 ----
"\n (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)"
"\n FROM pg_catalog.pg_attrdef d"
"\n WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef),"
! "\n a.attnotnull, a.attnum, a.attstorage");
if (verbose)
appendPQExpBuffer(&buf, ", pg_catalog.col_description(a.attrelid, a.attnum)");
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_attribute a");
***************
*** 957,967 ****
--- 958,979 ----

/* Description */
if (verbose)
+ {
+ char *storage = PQgetvalue(res, i, 6);
+
+ cells[i * cols + cols -2] =
+ (storage[0]=='p' ? "PLAIN" :
+ (storage[0]=='m' ? "MAIN" :
+ (storage[0]=='x' ? "EXTENDED" :
+ (storage[0]=='e' ? "EXTERNAL" :
+ "???"))));
+
#ifdef WIN32
cells[i * cols + cols - 1] = mbvalidate(PQgetvalue(res, i, 5), myopt.encoding);
#else
cells[i * cols + cols - 1] = PQgetvalue(res, i, 5);
#endif
+ }
}

/* Make title */

--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Ask me about EnterpriseDB's On-Demand Production Tuning