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5092aae431
bms_union() causes a new set to be allocated. What this caller needs is members added to an existing set. bms_add_members() is the tool for that job. This is just a matter of fixing an inefficiency due to surplus memory allocations. No bugs being fixed. The only other place I found that might be valid to apply this change is in markNullableIfNeeded(), but I opted not to do that due to the risk to reward ratio not looking favorable. The risk being that there *could* be another pointer pointing to the Bitmapset. Author: David Rowley <dgrowleyml@gmail.com> Reviewed-by: Greg Burd <greg@burd.me> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/CAApHDvoCcoS-p5tZNJLTxFOKTYNjqVh7Dwf+5ikDUBwnvWftRw@mail.gmail.com