Airblader commented on a change in pull request #17313:
URL: https://github.com/apache/flink/pull/17313#discussion_r713037413
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File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/strategies/SpecificInputTypeStrategies.java
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@@ -76,6 +77,18 @@
logical(LogicalTypeRoot.BOOLEAN),
logical(LogicalTypeFamily.NUMERIC))));
+ /** Input strategy for {@link BuiltInFunctionDefinitions#JSON_ARRAY}. */
+ public static final InputTypeStrategy JSON_ARRAY =
+ varyingSequence(
+ symbol(JsonOnNull.class),
+ or(
+ logical(LogicalTypeFamily.CHARACTER_STRING),
+ logical(LogicalTypeFamily.BINARY_STRING),
+ logical(LogicalTypeFamily.TIMESTAMP),
+ logical(LogicalTypeFamily.CONSTRUCTED),
+ logical(LogicalTypeRoot.BOOLEAN),
+ logical(LogicalTypeFamily.NUMERIC)));
Review comment:
Yes, and since `JSON_OBJECT` returns a character string, this is covered
here.
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