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https://issues.apache.org/jira/browse/FLINK-8038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16255278#comment-16255278
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ASF GitHub Bot commented on FLINK-8038:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/5015#discussion_r151409600
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/expressions/SqlExpressionTest.scala
---
@@ -156,6 +156,8 @@ class SqlExpressionTest extends ExpressionTestBase {
// testSqlApi("('hello world', 12)", "hello world") // test base only
returns field 0
testSqlApi("ARRAY[TRUE, FALSE][2]", "false")
testSqlApi("ARRAY[TRUE, TRUE]", "[true, true]")
+ testSqlApi("MAP['k1', 'v1', 'k2', 'v2']['k2']", "v2")
--- End diff --
Please also update the documentation for both Table API and SQL. They need
to be kept consistent.
> Support MAP value constructor
> -----------------------------
>
> Key: FLINK-8038
> URL: https://issues.apache.org/jira/browse/FLINK-8038
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: Rong Rong
> Assignee: Rong Rong
>
> Similar to https://issues.apache.org/jira/browse/FLINK-4554
> We want to support Map value constructor which is supported by Calcite:
> https://calcite.apache.org/docs/reference.html#value-constructors
> {code:sql}
> SELECT
> MAP['key1', f0, 'key2', f1] AS stringKeyedMap,
> MAP['key', 'value'] AS literalMap,
> MAP[f0, f1] AS fieldMap
> FROM
> table
> {code}
> This should enable users to construct MapTypeInfo, one of the CompositeType.
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