Lee Hinman b832fe30ab
[7.x] Validate Data Streams reference a template on composable template update (#59106) (#59193)
This commit adds validation that when a composable index template is updated, that the number
of unreferenced data streams does not increase. While it is still possible to have data streams
without a backing template (through snapshot restoration), this reduces the chance of getting
in to that scenario.

Relates to #53100
2020-07-07 15:38:27 -06:00
..