Quoting of psql \d output

psql \d always double-quotes table names:

Table "public.xx"
Column | Type | Modifiers
--------+---------+-----------
y | integer |
Indexes:
"ii" btree (y)

With this patch, double-quotes are not used when not required:

test=> \d xx
Table public.xx
Column | Type | Modifiers
--------+---------+-----------
y | integer |
Indexes:
ii btree (y)

but does in this case:

test=> \d "xx y"
Table public."xx y"
Column | Type | Modifiers
--------+---------+-----------
y | integer |
Indexes:
vv btree (y)

This patch uses pg_dump fmtId() to double-quote only when necessary.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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