1 ginarrayextract() has 2 parameters 2 gin_extract_tsquery() has 3 parameters 3 run sql(from plsql/src/test/regress/sql/opr_sanity.sql), it expect no results: ------------- SELECT p1.amopclaid, p1.amprocnum, p2.oid, p2.proname, p3.opcname, p4.amopclaid, p4.amprocnum, p5.oid, p5.proname, p6.opcname FROM pg_amproc AS p1, pg_proc AS p2, pg_opclass AS p3, pg_amproc AS p4, pg_proc AS p5, pg_opclass AS p6 WHERE p1.amopclaid = p3.oid AND p4.amopclaid = p6.oid AND p3.opcamid = p6.opcamid AND p1.amprocnum = p4.amprocnum AND p1.amproc = p2.oid AND p4.amproc = p5.oid AND (p2.proretset OR p5.proretset OR p2.pronargs != p5.pronargs); -------------- We can get results as follow: amopclaid | amprocnum | oid | proname | opcname | amopclaid | amprocnum | oid | proname | opcname -----------+-----------+------+---------------------+------------------+-----------+-----------+------+---------------------+------------------ 2771 | 3 | 2743 | ginarrayextract | _oidvector_ops | 3659 | 3 | 3657 | gin_extract_tsquery | tsvector_ops 2759 | 3 | 2743 | ginarrayextract | _cidr_ops | 3659 | 3 | 3657 | gin_extract_tsquery | tsvector_ops 2768 | 3 | 2743 | ginarrayextract | _name_ops | 3659 | 3 | 3657 | gin_extract_tsquery | tsvector_ops ...... 4 But, reading "plsql/src/test/regress/sql/opr_sanity.sql", there is a sentence said: " We can check that all the referenced instances of the same support routine number take the same number of parameters" ?
5 So, ginarrayextract() and gin_extract_tsquery() should take the same number of parameters? Or, " We can check that all the referenced instances of the same support routine number take the same number of parameters" is not a right? 6 Actually, pgsql allow all the referenced instances of the same support routine number do not take the same number of parameters. Thanks. Fly.Li "Tom Lane" <t...@sss.pgh.pa.us> дÈëÓʼþÐÂÎÅ:<10550.1246457...@sss.pgh.pa.us>... > "Fly.Li" <fly...@126.com> writes: > > version: PG8.2.2 > > MY Question: > > Why must "take the same number of parameters" ? > > Because the GIN code will call it with a particular number of arguments. > > > When I use tsearch2, I found that gin_extract_tsquery() has 3 > > parameters, it > > break the rule "take the same number of parameters". > > 3 is the correct number of parameters for an extractQuery function > (before 8.4 anyway), so I'm not clear what you are complaining about. > > regards, tom lane > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers