issue #107: fix broken SQL #157

Job	Run time
ci / check if job needs to run	7s
ci / prepare test matrix	11s
ci / master - pgsql - php 8.1 - local_recompletion	3m 47s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - local_recompletion	4m 20s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - local_recompletion	3m 56s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - local_recompletion	5m 12s
ci / MOODLE_402_STABLE - pgsql - php 8.0 - local_recompletion	3m 32s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - local_recompletion	3m 49s
ci / MOODLE_402_STABLE - mariadb - php 8.0 - local_recompletion	3m 22s
ci / MOODLE_402_STABLE - pgsql - php 8.1 - local_recompletion	3m 29s
ci / MOODLE_402_STABLE - mariadb - php 8.1 - local_recompletion	4m 17s
ci / Release to the Moodle plugin directory	0s
	36m 2s

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