Simon Riggs <simon@xxxxxxxxxxxxxxx> writes: > Perhaps we can have a parameter? > default_null_sorting = 'last' # may alternatively be set to 'first' Not unless it's locked down at initdb time. Otherwise flipping the value bars you from using every existing index ... including those on the system catalogs ... which were made with the other setting. I put this in the same category as altering the identifier case-folding rules. Yeah, it'd be great to be all things to all people, but the implementation pain and risk of breakage of existing applications isn't worth it. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match