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fix: posexplode_outer to unnest #2942

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merged 1 commit into from
Feb 9, 2024
Merged

fix: posexplode_outer to unnest #2942

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2 changes: 1 addition & 1 deletion sqlglot/expressions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4838,7 +4838,7 @@ class Posexplode(Explode):
pass


class PosexplodeOuter(Posexplode):
class PosexplodeOuter(Posexplode, ExplodeOuter):
pass


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4 changes: 4 additions & 0 deletions tests/dialects/test_bigquery.py
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Original file line number Diff line number Diff line change
Expand Up @@ -624,6 +624,10 @@ def test_bigquery(self):
"SELECT IF(pos = pos_2, col, NULL) AS col FROM UNNEST(GENERATE_ARRAY(0, GREATEST(ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], []))) - 1)) AS pos CROSS JOIN UNNEST(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) AS col WITH OFFSET AS pos_2 WHERE pos = pos_2 OR (pos > (ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) - 1) AND pos_2 = (ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) - 1))",
read={"spark": "select explode_outer([])"},
)
self.validate_all(
"SELECT IF(pos = pos_2, col, NULL) AS col, IF(pos = pos_2, pos_2, NULL) AS pos_2 FROM UNNEST(GENERATE_ARRAY(0, GREATEST(ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], []))) - 1)) AS pos CROSS JOIN UNNEST(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) AS col WITH OFFSET AS pos_2 WHERE pos = pos_2 OR (pos > (ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) - 1) AND pos_2 = (ARRAY_LENGTH(IF(ARRAY_LENGTH(COALESCE([], [])) = 0, [NULL], [])) - 1))",
read={"spark": "select posexplode_outer([])"},
)
self.validate_all(
"SELECT AS STRUCT ARRAY(SELECT AS STRUCT b FROM x) AS y FROM z",
write={
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