Hi, Andrew,
I have just checked in an update with functions in ibis::table class
that take ibis::qExpr* as query conditions. This should simplify the
two step query processing considerably. Here is something that might
work..
ibis::table *genome = ibis::table::create("path-to-genome-data");
ibis::table *s1 = genome->select("feature_id1", "feature_id1 > 0 and
...");
ibis::array_t<uint32_t> *ids = s1->getColumnAsUInt("feature_id1");
ibis::qDiscreteRange dr("feature_id1", *ids);
ibis::table *feat1 = ibis::table::create("path-to-feat1");
ibis::table *s2 = feat1->select("something, something2", &dr);
delete s2;
delete feat1;
delete ids;
delete s1;
delete genome;
As usual, you will need to wait for the nightly snapshot to be
generated by the codeforge.lbl.gov web server. The snapshot will be
available at <https://codeforge.lbl.gov/snapshots.php?group_id=44>.
If you want to try this out immediately, let me know I will email you
a tar ball..
Good luck.
John
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