Temporary indexes

Do we have temporary indexes?

test=> CREATE TABLE temptest(col INTEGER);
CREATE
test=> create index ix on temptest (col);
CREATE
test=> CREATE TEMP TABLE masktest (col INTEGER);
CREATE
test=> create index ix on temptest (col);
ERROR: Cannot create index: 'ix' already exists

Seems we don't. Should I add it to the TODO list?

Oh, I see now, I was creating the index on temptest, not masktest.
Sorry. It works fine.

-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  pgman@candle.pha.pa.us               |  (610) 853-3000
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Bruce Momjian <pgman@candle.pha.pa.us> writes:

Do we have temporary indexes?
test=> CREATE TABLE temptest(col INTEGER);
CREATE
test=> create index ix on temptest (col);
CREATE
test=> CREATE TEMP TABLE masktest (col INTEGER);
CREATE
test=> create index ix on temptest (col);
ERROR: Cannot create index: 'ix' already exists

Seems we don't. Should I add it to the TODO list?

It seems to work when you use the right table names ;-)

regression=# create table foo (f1 int);
CREATE
regression=# create index foo_i on foo(f1);
CREATE
regression=# create temp table foo (f1t int);
CREATE
regression=# create index foo_i on foo(f1);
ERROR: DefineIndex: attribute "f1" not found
regression=# create index foo_i on foo(f1t);
CREATE
regression=# explain select * from foo where f1t = 33;
NOTICE: QUERY PLAN:

Index Scan using foo_i on foo (cost=0.00..8.14 rows=10 width=4)

EXPLAIN
-- reconnect to drop temp tables
regression=# \connect regression
You are now connected to database regression.
regression=# explain select * from foo where f1t = 33;
ERROR: Attribute 'f1t' not found
regression=# explain select * from foo where f1 = 33;
NOTICE: QUERY PLAN:

Index Scan using foo_i on foo (cost=0.00..8.14 rows=10 width=4)

EXPLAIN
regression=#

I do observe a minor glitch though, which is that psql's \d command
doesn't pay attention to temp-table aliases:

regression=# \d foo
          Table "foo"
 Attribute |  Type   | Modifier
-----------+---------+----------
 f1        | integer |
Index: foo_i

regression=#
regression=# create temp table foo (f1t int);
CREATE
regression=# \d foo
          Table "foo"
 Attribute |  Type   | Modifier
-----------+---------+----------
 f1        | integer |
Index: foo_i

I should be shown the temp table here, but I'm not.

regards, tom lane