tapdb: universe db query re-write and index performance tests

make/testing_flags.mk

@@ -54,6 +54,11 @@ ifeq ($(dbbackend),postgres)
 DEV_TAGS += test_db_postgres
 endif
 
+# Run universe tests with increased scale for performance testing.
+ifneq ($(long-tests),)
+DEV_TAGS += longtests
+endif
+
 ifneq ($(tags),)
 DEV_TAGS += ${tags}
 endif

tapdb/universe_perf_long_test.go

@@ -0,0 +1,13 @@
+//go:build longtests
+
+package tapdb
+
+// longTestScale is the scale factor for long tests.
+const longTestScale = 5
+
+var (
+	numAssets         = 100 * longTestScale
+	numLeavesPerTree  = 300 * longTestScale
+	numEventsPerAsset = 100 * longTestScale
+	numQueries        = 100 * longTestScale
+)

tapdb/universe_perf_short_test.go

@@ -0,0 +1,10 @@
+//go:build !longtests
+
+package tapdb
+
+var (
+	numAssets         = 100
+	numLeavesPerTree  = 300
+	numEventsPerAsset = 100
+	numQueries        = 100
+)