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// check that we don't crash if an index used by an earlier or clause is dropped
// Dropping an index kills all cursors on the indexed namespace, not just those
// cursors using the dropped index. This test is to serve as a reminder that
// the $or implementation may need minor adjustments (memory ownership) if this
// behavior is changed.
t = db.jstests_ord;
t.drop();
t.ensureIndex( {a:1} );
t.ensureIndex( {b:1} );
for( i = 0; i < 80; ++i ) {
t.save( {a:1} );
}
for( i = 0; i < 100; ++i ) {
t.save( {b:1} );
}
c = t.find( { $or: [ {a:1}, {b:1} ] } ).batchSize( 100 );
for( i = 0; i < 90; ++i ) {
c.next();
}
// At this point, our initial query has ended and there is a client cursor waiting
// to read additional documents from index {b:1}. Deduping is performed against
// the index key {a:1}
t.dropIndex( {a:1} );
db.getLastError();
// Dropping an index kills all cursors on the indexed namespace, not just those
// cursors using the dropped index.
assert.throws( c.next() );
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