Hi,
I have encountered strange errors while testing PostgreSQL 8.4 beta2.
SELECT msg_sid FROM msginfo WHERE plainto_tsquery(E'test') @@
body_index;
or
SELECT msg_sid FROM msginfo WHERE to_tsquery(E'test') @@ body_index;
produces following errors:
ERROR: tuple offset out of range: 0
(occasionally ERROR: tuple offset out of range: 459)
Here is the table definition:
CREATE TABLE msginfo ( msg_sid BIGSERIAL PRIMARY KEY, file_size INTEGER, file_mtime TIMESTAMP,
msg_dateTIMESTAMP, flags INTEGER, hdr_from TEXT, hdr_to TEXT, hdr_cc TEXT, hdr_newsgroups
TEXT, hdr_subject TEXT, hdr_msgid TEXT UNIQUE NOT NULL, hdr_inreplyto TEXT, hdr_references TEXT,
body_text TEXT, body_index TSVECTOR
);
CREATE INDEX msginfo_msg_date_index ON msginfo (msg_date);
CREATE INDEX msginfo_body_index ON msginfo USING gin (body_index);
and other info:
Ubuntu 8.04
./configure --prefix=/usr/local/pgsql84
initdb -E UTF-8 --no-locale /path/to/database
sylph=# EXPLAIN SELECT msg_sid FROM msginfo WHERE to_tsquery('test') @@ body_index;
QUERYPLAN
--------------------------------------------------------------------------------
-Bitmap Heap Scan on msginfo (cost=4.59..8.61 rows=1 width=8) Recheck Cond: (to_tsquery('test'::text) @@ body_index)
-> Bitmap Index Scan on msginfo_body_index (cost=0.00..4.59 rows=1 width=0) Index Cond:
(to_tsquery('test'::text)@@ body_index)
(4 rows)
--
Tatsuo Ishii
SRA OSS, Inc. Japan
