Gian Merlino 1040a29bc5
Fix capabilities reported by UnnestStorageAdapter. (#16551)
UnnestStorageAdapter and its cursors did not return capabilities correctly
for the output column. This patch fixes two problems:

1) UnnestStorageAdapter returned the capabilities of the unnest virtual
   column prior to unnesting. It should return the post-unnest capabilities.

2) UnnestColumnValueSelectorCursor passed through isDictionaryEncoded from
   the unnest virtual column. This is incorrect, because the dimension selector
   created by this class never has a dictionary. This is the cause of #16543.
2024-06-05 15:19:42 -07:00
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