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https://issues.apache.org/jira/browse/CALCITE-5751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17735712#comment-17735712
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Jiajun Xie commented on CALCITE-5751:
-------------------------------------
Fixed in
[a2d2a31|https://github.com/apache/calcite/commit/a2d2a31a70be3b20f3f2b8f311bf580dd9ae1e24]
[~jackylau] Thanks for your PR!
[~jhyde] Thanks for your review!
> Add ARRAY_APPEND, ARRAY_POSITION, ARRAY_REMOVE ARRAY_PREPEND for Spark dialect
> ------------------------------------------------------------------------------
>
> Key: CALCITE-5751
> URL: https://issues.apache.org/jira/browse/CALCITE-5751
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.35.0
> Reporter: jackylau
> Assignee: jackylau
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.35.0
>
>
> h3.
> [array_append|https://spark.apache.org/docs/latest/api/sql/index.html#array_append]
> array_append(array, element) - Add the element at the end of the array passed
> as first argument. Type of element should be similar to type of the elements
> of the array. Null element is also appended into the array. But if the array
> passed, is NULL output is NULL
> *Examples:*
>
> {code:java}
> {code}
> *> SELECT array_append(array('b', 'd', 'c', 'a'), 'd');
> ["b","d","c","a","d"]
> > SELECT array_append(array(1, 2, 3, null), null);
> [1,2,3,null,null]
> > SELECT array_append(CAST(null as Array<Int>), 2);
> NULL*
>
> array_prepend is not in the docs, but in the code
> https://issues.apache.org/jira/browse/SPARK-41233
> {code:java}
> usage = """ _FUNC_(array, element) - Add the element at the beginning of the
> array passed as first argument. Type of element should be the same as the
> type of the elements of the array. Null element is also prepended to the
> array. But if the array passed is NULL output is NULL """, examples = """
> Examples: > SELECT _FUNC_(array('b', 'd', 'c', 'a'), 'd');
> ["d","b","d","c","a"] > SELECT _FUNC_(array(1, 2, 3, null), null);
> [null,1,2,3,null] > SELECT _FUNC_(CAST(null as Array<Int>), 2); NULL
> case class ArrayPrepend(left: Expression, right: Expression) extends
> RuntimeReplaceable {code}
> h3.
> [array_position|https://spark.apache.org/docs/latest/api/sql/index.html#array_position]
> array_position(array, element) - Returns the (1-based) index of the first
> element of the array as long.
> *Examples:*
>
> {code:java}
> > SELECT array_position(array(3, 2, 1), 1);
> 3 {code}
>
> h3.
> [array_remove|https://spark.apache.org/docs/latest/api/sql/index.html#array_remove]
> array_remove(array, element) - Remove all elements that equal to element from
> array.
> *Examples:*
>
> {code:java}
> > SELECT array_remove(array(1, 2, 3, null, 3), 3);
> [1,2,null] {code}
>
>
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