wuchong commented on a change in pull request #11186: [FLINK-16200][sql]
Support JSON_EXISTS for blink planner
URL: https://github.com/apache/flink/pull/11186#discussion_r399162118
##########
File path:
flink-table/flink-table-planner-blink/src/test/scala/org/apache/flink/table/planner/expressions/JsonFunctionsTest.scala
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@@ -125,4 +127,53 @@ class JsonFunctionsTest extends ExpressionTestBase {
}
}
+ @Test
+ def testJsonExists(): Unit = {
Review comment:
Could you add a more complex test? Checking existence on a nested fields?
e.g. `json_exist(f0, 'lax $.info.address[0].state')`. You can take [Sql
Server](https://docs.microsoft.com/en-us/sql/t-sql/functions/json-value-transact-sql?view=sql-server-ver15#lax-mode-and-strict-mode)
as an example.
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