Repository navigation

Fix index definition and reference roles in ALTER validation #1227

Job	Run time
Grammar Choice Conflicts	24s
Gradle Check (ubuntu-latest)	3m 58s
Gradle Check (macos-latest)	4m 49s
Gradle Check (windows-latest)	4m 49s
Maven Verify (macos-latest)	4m 3s
Maven Verify (windows-latest)	3m 43s
Maven Verify (ubuntu-latest)	4m 3s
Gradle Publish (Maven Central)	-1s
Build & Deploy Sphinx Docs	-1s
	25m 47s