Tom Lane <t...@sss.pgh.pa.us> wrote: > 3. Or, perhaps we could change recordDependencyOnSingleRelExpr so > that it generates a whole-table dependency on the target relation > even if there are no Vars in the expression. This would make it > act much more like the regular-query context that > find_expr_references_walker is expecting --- in essence, since > we're fabricating a single-element rtable for > find_expr_references_walker to work with, we should fabricate the > implied whole-table dependency entry too. But that seems a bit > weird too, and in particular it's not obvious whether to do that > if in fact the expression is empty, or doesn't contain any Var at > all. This one seems sensible *if* you assume that by the time it is called there is a known dependency on the particular relation -- for example, you are dealing with an index on that relation. Is that a reasonable restriction on the use of the recordDependencyOnSingleRelExpr function? If this was done, would it allow simplification of the index_create code you showed in #1? -Kevin
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