Max Gekk created SPARK-57846:
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Summary: Add the try_make_time function
Key: SPARK-57846
URL: https://issues.apache.org/jira/browse/SPARK-57846
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 4.3.0
Reporter: Max Gekk
This sub-task is part of the umbrella SPARK-57550 (extend support for the TIME
data type).
h2. Problem
{{make_time}} exists and throws on invalid input (timeExpressions.scala
~L599-620; registered in FunctionRegistry.scala ~L748), but there is no
{{try_make_time}}, unlike {{try_make_timestamp}} (FunctionRegistry.scala
~L757). This is an error-handling parity gap.
h2. Goal
Add a {{try_make_time}} function that returns NULL instead of throwing when the
hour/minute/second fields are out of range.
h2. Scope
Add a {{try_make_time}} expression builder (reusing {{MakeTime}} with TRY eval
mode) and register it in {{FunctionRegistry}}.
h2. Acceptance criteria
* {{try_make_time(25, 0, 0)}} returns NULL; valid inputs match {{make_time}}.
h2. Testing
{{TimeExpressionsSuite}}; TIME golden files.
h2. Dependencies
None - independent.
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