Unstable tests (#7487)

Setup unstable tests

scripts/sql-test-integration-unstable.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+	realpath() { [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"; }
+	ROOT=$(dirname $(dirname $(realpath "$0")))
+else
+	ROOT=$(dirname $(dirname $(readlink -f $0)))
+fi
+
+cd $ROOT
+
+export ADS_TEST_GREP=@UNSTABLE@
+
+echo Running unstable tests
+
+./scripts/sql-test-integration.sh