19.04.2017 14:12, Vlad Khorsun wrote: > It give nothig to readers Not quite so. When array binding used with select, client can send request for new packet before it start tossing record values into user buffers and this way work in parallel with server and network, reducing total wait time.
> Engine can't run more than one statement in attachment at same time. This > will not be > changed. But engine can implicitly start new attachment and derived transaction to run this parallel statement and get the same result without need for application developer to explicitly care about it. > So - no, this features have no advantage over parallel readers. On the other hand parallel reader also have no advantages over these features and I don't see other tasks which they can be better for. -- WBR, SD. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel