DELTA_CLUSTER_BY_VARIANT_STATS_NOT_ENABLED error condition
Clustering by variant_get expressions requires variant statistics collection to be enabled. Without variant statistics, OPTIMIZE cannot cluster newly written files.
SQL_CONFS
Set the following SQL configurations: <unmetConfs>.
TABLE_PROPERTIES
Set the following table properties: <unmetTableProperties>.
TABLE_PROPERTIES_AND_SQL_CONFS
Set the following table properties: <unmetTableProperties>. Set the following SQL configurations: <unmetConfs>.