Add or update map

Supported in: Batch, Streaming

Updates a value by key in a map or adds new key value pair.

Expression categories: Map

Declared arguments

Type variable bounds: K accepts AnyType**V accepts AnyType

Output type: Map<K, V>

Argument values:

map_col	Output
{ a -> 1, b -> 2, }	{ a -> 1, b -> 2, k -> 4, }

Argument values:

map_col	Output
{ a -> 1, b -> 2, k -> 2, }	{ a -> 1, b -> 2, k -> 4, }
{ a -> 1, b -> 2, }	{ a -> 1, b -> 2, k -> 4, }

Argument values:

map_col	Output
{ a -> 1, b -> 2, k -> 2, }	{ a -> 1, b -> 2, k -> 4, }

Argument values:

map_col	Output
{ a -> 1, }	{ a -> 1, }

Argument values:

map_col	Output
null	null