>> The default configurations of PostgreSQL incur the error: "ERROR: could not resize shared memory segment "/PostgreSQL.3539600020" to 2097152 bytes: No space left on device"
>No comment on your optimiser experiments for now, but for this error:
>it reminds me of a low/default --shm-size limit from Docker, or other
>similar container stuff?
Aha, you are right. The error disappears if running PostgreSQL out of docker container.
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