Chained unnests have changed its behavior in PG10. In previous versions if the unnested arrays had different cardinality the function automatically fills the gaps duplicating the content of the array with less cardinality but not anymore.
Chained unnests have changed its behavior in PG10. In previous versions if the unnested arrays had different cardinality the function automatically fills the gaps duplicating the content of the array with less cardinality but not anymore.