Обсуждение: Out Of Memory Error on GiST Index
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? 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
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 > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: Have you checked our extensive FAQ? > > http://www.postgresql.org/docs/faq > Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83