Add unique index for page groups #348 #537

Job	Run time
ci / check if job needs to run	3s
ci / prepare test matrix	19s
ci / MOODLE_35_STABLE - mariadb - php 7.1 - tool_excimer	3m 24s
ci / MOODLE_310_STABLE - pgsql - php 7.2 - tool_excimer	3m 38s
ci / MOODLE_35_STABLE - pgsql - php 7.1 - tool_excimer	3m 2s
ci / MOODLE_311_STABLE - mariadb - php 7.3 - tool_excimer	3m 9s
ci / MOODLE_35_STABLE - mariadb - php 7.2 - tool_excimer	3m 4s
ci / MOODLE_35_STABLE - pgsql - php 7.2 - tool_excimer	3m 8s
ci / MOODLE_36_STABLE - mariadb - php 7.1 - tool_excimer	3m 13s
ci / MOODLE_37_STABLE - pgsql - php 7.2 - tool_excimer	3m 9s
ci / MOODLE_38_STABLE - mariadb - php 7.3 - tool_excimer	3m 37s
ci / MOODLE_39_STABLE - mariadb - php 7.2 - tool_excimer	3m 21s
ci / MOODLE_39_STABLE - pgsql - php 7.2 - tool_excimer	3m 25s
ci / MOODLE_39_STABLE - mariadb - php 7.3 - tool_excimer	4m 22s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - tool_excimer	3m 18s
ci / MOODLE_400_STABLE - pgsql - php 7.3 - tool_excimer	3m 17s
ci / MOODLE_39_STABLE - pgsql - php 7.3 - tool_excimer	3m 19s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - tool_excimer	3m 14s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - tool_excimer	4m 13s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - tool_excimer	3m 20s
ci / Release to the Moodle plugin directory	0s
	1h 1m 35s

Provide feedback