Out Of Memory Error on GiST Index

James Cradock wrote:

Hello.

I'm getting an Out Of Memory error when I try to create a GiST index on
a geometry column (PostGIS) with approximately 33,000,000 rows. I can
truncate the data in the table, create the GiST index on the empty
table, but when I try to reload the data via pg_restore I get the error.
I get the error also if I try creating the GiST index on the table with
the 33,000,000 rows.

Are there limitations with the GiST index? Has anyone seen this?

I seem to remember mention of memory-leak fixes being applied to the
GiST code not too long back - might be worth checking the archives for
the bug/hackers list.

--
Richard Huxton
Archonet Ltd

Thanks.

I'm using PostgreSQL 8.0.2.

On Sep 1, 2005, at 6:35 AM, Richard Huxton wrote:

James Cradock wrote:

Hello.
I'm getting an Out Of Memory error when I try to create a GiST index
on a geometry column (PostGIS) with approximately 33,000,000 rows. I
can truncate the data in the table, create the GiST index on the
empty table, but when I try to reload the data via pg_restore I get
the error. I get the error also if I try creating the GiST index on
the table with the 33,000,000 rows.
Are there limitations with the GiST index? Has anyone seen this?

I seem to remember mention of memory-leak fixes being applied to the
GiST code not too long back - might be worth checking the archives for
the bug/hackers list.

--
Richard Huxton
Archonet Ltd

-----
James Cradock, jcradock@me3.com

me3 Technology Consultants, LLC
24 Preble Street, 2nd Floor
Portland, ME 04101

207-772-3217 (office)
207-838-8678 (mobile)

www.me3.com

On Thu, 1 Sep 2005, James Cradock wrote:

Hello.

I'm getting an Out Of Memory error when I try to create a GiST index on a
geometry column (PostGIS) with approximately 33,000,000 rows. I can truncate
the data in the table, create the GiST index on the empty table, but when I
try to reload the data via pg_restore I get the error. I get the error also
if I try creating the GiST index on the table with the 33,000,000 rows.

Are there limitations with the GiST index? Has anyone seen this?

AFAIK, no. Perhaps, it's PostGIS problem ? It'd be nice to build
rtree index using contrib/rtree_gist to see if problem in GiST.

Thanks.

Jim

-----
James Cradock, jcradock@me3.com

-----
James Cradock, jcradock@me3.com

me3 Technology Consultants, LLC
24 Preble Street, 2nd Floor
Portland, ME 04101

207-772-3217 (office)
207-838-8678 (mobile)

www.me3.com

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