Here's a first draft patch for DROP ... IF EXISTS for the remaining cases, namely: LANGUAGE, TABLESPACE, TRIGGER OPERATOR CLASS, FUNCTION, AGGREGATE, OPERATOR, CAST and RULE.

At what point does this stop being useful and become mere bloat?
The only case I can ever recall being actually asked for was the
TABLE case ...

Chris KL said it should be done for all on the grounds of consistency. But I will happily stop right now if that's not the general view - I'm only doing this to complete something I started.

Well, my use-case was to be able to wrap "pg_dump -c" output in begin/commit tags and being able to run and re-run such dumps without errors. Basically I don't like 'acceptable errors' when restoring dumps :) They just confuse newer users especially.

I also just like consistency :)


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