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Updated on 2024-04-19 GMT+08:00
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Value Retrieval Functions

Table 1 Value retrieval functions

SQL Function

Description

tableName.compositeType.field

Returns the value of a field from a Flink composite type (e.g. Tuple, POJO) by name.

tableName.compositeType.*

Returns the flattened representation of a Flink composite type (e.g. Tuple, POJO), converting each of its immediate subtypes into a separate field. In most cases, the fields in the flattened representation have similar names to the original fields, but with a $ separator (e.g. mypojo$mytuple$f0).
Parent topic: Built-In Functions