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add_field_indicies(array features) – Returns arrays of string that field indices (:)* are augmented Platforms: WhereOS,

add_months(start_date, num_months) – Returns the date that is `num_months` after `start_date`. Platforms: WhereOS, Spark, Hive

aggregate(expr, start, merge, finish) – Applies a binary operator to an initial state and all

amplify(const int xtimes, *) – amplify the input records x-times Platforms: WhereOS, Spark, Hive Class:

expr1 and expr2 – Logical AND. Platforms: WhereOS, Spark, Hive Class: org.apache.spark.sql.catalyst.expressions.And More functions can

add_feature_index(ARRAY[DOUBLE]: dense feature vector) – Returns a feature vector with feature indices Platforms: WhereOS, Spark,