blob: bb803b0fb712647eba27b5c1825a2bef4c538fe8 [file] [log] [blame]
/*
* Description : Equi joins two datasets, DBLP and CSX, based on their title.
* DBLP has a secondary btree index on title, and given the 'indexnl' hint
* we expect the join to be transformed into an indexed nested-loop join.
* We expect the additional predicates to be put into a select above the
* primary index search.
* Success : Yes
*/
drop dataverse test if exists;
create dataverse test;
use dataverse test;
create type DBLPType as closed {
id: int32,
dblpid: string,
title: string,
authors: string,
misc: string
}
create type CSXType as closed {
id: int32,
csxid: string,
title: string,
authors: string,
misc: string
}
create dataset DBLP(DBLPType) primary key id;
create dataset CSX(CSXType) primary key id;
create index title_index on DBLP(title);
write output to nc1:"rttest/btree-index-join_title-secondary-equi-join-multipred.adm";
for $a in dataset('DBLP')
for $b in dataset('CSX')
where $a.title /*+ indexnl */ = $b.title and $a.authors < $b.authors and $a.misc > $b.misc
return {"arec": $a, "brec": $b}