"Query multiplexing"
A library for merging multiple SQL queries to avoid the N+1 Selects problem[1].
This library was designed to work with autobatch[2].
From a list of SQL queries, those who are identical except in a single condition in the WHERE
clause, such as WHERE x = 1, WHERE x = 2, WHERE x = 3, are merged into a single query on the
form WHERE x IN (1,2,3). The varying column (x in this case) is added to the SELECTed columns
so that the resulting rows can be divided and delivered to each of the original queries afterwards.
Currently a query has to be represented as a record #sqlquery{}. Perhaps it would be better
to use an existing representation of the SQL syntax tree such as a subset of ErlSQL[3] AKA Sqerl[4].
Note that dynamic SQL generation is generally considered bad practice.