maropu commented on a change in pull request #30297:
URL: https://github.com/apache/spark/pull/30297#discussion_r521147000
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File path: docs/sql-ref-ansi-compliance.md
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@@ -111,6 +111,8 @@ SELECT * FROM t;
The behavior of some SQL functions can be different under ANSI mode
(`spark.sql.ansi.enabled=true`).
- `size`: This function returns null for null input under ANSI mode.
+ - `element_at`: This function throws `ArrayIndexOutOfBoundsException` if
using invalid indices under ANSI mode.
+ - `elt`: This function throws `ArrayIndexOutOfBoundsException` if using
invalid indices under ANSI mode.
Review comment:
I think its better to describe the behaviour change of `GetArrayItem`,
too, so how about creating a new subsection for it like `Other SQL Operations`?
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