perf-tests: #!/bin/bash -> #!/usr/bin/env bash I couldn't run the performance tests on my machines due to a hardcoded bash path. Use env for finding bash in weird systems like NixOS. Signed-off-by: William Casarin <jb55@jb55.com>
perf-test: add simple test for thread subqueries This is not a particularly sensible query, but thread:{date:2010} is a good way to generate fairly large intermediate queries.