Currently we loop through read and update clauses with every stage result set fed into the next stage. Instead, this can be turned into a pipeline with one stage feeding a cursor to the next.
Also, if there are no projections, do not collect results.
Currently we loop through read and update clauses with every stage result set fed into the next stage. Instead, this can be turned into a pipeline with one stage feeding a cursor to the next.
Also, if there are no projections, do not collect results.