Error: could not find a feasible split point for "obs_v_file_id_index"

Started by Robert Creagerover 21 years ago3 messagesbugs
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#1Robert Creager
Robert_Creager@LogicalChaos.org

Hey All,

While doing some daily processing, I ran across the following error:

ERROR: could not find a feasible split point for "obs_v_file_id_index"
STATEMENT: UPDATE obs_v SET mag = obs_v.imag + zp.zero_v + cg.color_v *
(obs_v.imag - i.imag), use = true FROM color_groups AS cg, zero_pair AS zp,
obs_i AS i, files AS f, groups AS g WHERE obs_v.star_id = i.star_id AND
obs_v.file_id = f.file_id AND cg.group_id = g.group_id AND g.night_id =
f.night_id AND g.group_id = 149 AND zp.pair_id = f.pair_id

version: 7.4.1.

table schema:

---------+---------+------------------------------------------------
x | real | not null
y | real | not null
imag | real | not null
smag | real | not null
loc | spoint | not null
obs_id | integer | not null default nextval('"obs_id_seq"'::text)
file_id | integer | not null
use | boolean | default false
solve | boolean | default false
star_id | integer |
mag | real |
Inexes: "obs_v_file_id_index" btree (file_id)
"obs_v_loc_index" gist (loc)
"obs_v_obs_id_index" btree (obs_id)
"obs_v_star_id_index" btree (star_id)
"obs_v_use_index" btree (use)
Foreign-key constraints:
"obs_v_files_constraint" FOREIGN KEY (file_id) REFERENCES files(file_id) ON
DELETE CASCADE
"obs_v_star_id_constraint" FOREIGN KEY (star_id) REFERENCES
catalog(star_id) ON DELETE SET NULL
Triggers:
obs_v_trig BEFORE INSERT OR DELETE OR UPDATE ON obs_v FOR EACH ROW EXECUTE
PROCEDURE observations_trigger

Help?

Cheers,
Rob

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#2Tom Lane
tgl@sss.pgh.pa.us
In reply to: Robert Creager (#1)
Re: Error: could not find a feasible split point for "obs_v_file_id_index"

Robert Creager <Robert_Creager@LogicalChaos.org> writes:

While doing some daily processing, I ran across the following error:

ERROR: could not find a feasible split point for "obs_v_file_id_index"

file_id | integer | not null
Inexes: "obs_v_file_id_index" btree (file_id)

On an index on an *integer* column?? That's a can't-happen error in the
first place, and it's particularly silly when the index entries are
small and fixed-width. I surmise that you have a corrupted index, but
it would be interesting to examine the entrails. Is it repeatable?
Is the database small enough that you could ship me a tarball copy
(or if not, would you be willing to let me into your system to look at
it)?

regards, tom lane

#3Robert Creager
Robert_Creager@LogicalChaos.org
In reply to: Tom Lane (#2)
Re: Error: could not find a feasible split point for

When grilled further on (Mon, 30 Aug 2004 11:31:12 -0400),
Tom Lane <tgl@sss.pgh.pa.us> confessed:

Robert Creager <Robert_Creager@LogicalChaos.org> writes:

While doing some daily processing, I ran across the following error:

ERROR: could not find a feasible split point for "obs_v_file_id_index"

file_id | integer | not null
Inexes: "obs_v_file_id_index" btree (file_id)

On an index on an *integer* column?? That's a can't-happen error in the
first place, and it's particularly silly when the index entries are
small and fixed-width. I surmise that you have a corrupted index, but
it would be interesting to examine the entrails. Is it repeatable?
Is the database small enough that you could ship me a tarball copy
(or if not, would you be willing to let me into your system to look at
it)?

regards, tom lane

The error is repeatable (with a script that runs in a few minutes). A recent
dump 528Mb compressed (10Gb on disk). As for access, presumably you want in as
postgres?

Any chance you have a gpg key somewhere for encryption? I did a quick check and
didn't find any...

Cheers,
Rob

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