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struct function

  • Άρθρο

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Creates a STRUCT with the specified field values.

Syntax

struct(expr1 [, ...] )

Arguments

  • exprN: An expression of any type.

Returns

A struct with fieldN matching the type of exprN.

If the arguments are named references, the names are used to name the field. Otherwise, the fields are named colN, where N is the position of the field in the struct.

Examples

> SELECT struct(c1, c2, c3) FROM VALUES(1, 2, 3) AS T(c1, c2, c3);
 {"c1":1,"c2":2,"c3":3}

> SELECT struct(1, 2, 3);
 {"col1":1,"col2":2,"col3":3}