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Dependent queries can revisit unfinished work, overflow the stack, or cache partial answers as final results. Track active queries and keep dependent results provisional. Use work lists for alias expansion, type comparison, and long expression chains. Prove recursive structural matches separately from query re-entry, and reject alias argument growth that cannot be shown to terminate.
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Dependent queries can revisit unfinished work, causing stack overflows
or caching partial results as final answers.
Track active queries and comparisons. Keep results that depend on
unfinished work provisional so later queries can retry them. Preserve
definite comparison results. Defer conditionals with unresolved checks.
Share alias paths across dependent queries. Allow repeated aliases only
when each instance is a strict subtree of the previous one. Use work
lists for long finite alias and expression chains.