Handle backward scan support for subquery RTEs #41
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The code incorrectly assumed that all range table entries have a valid relid. This is not true for subquery RTEs, which resulted in relid = 0 and caused cache lookup failures when cursors were used.
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The code incorrectly assumed that all range table entries have a valid relid. This is not true for subquery RTEs, which resulted in relid = 0 and caused cache lookup failures when cursors were used.
Fix for #34