snuyanzin commented on code in PR #28850:
URL: https://github.com/apache/flink/pull/28850#discussion_r3702045924
##########
flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/SqlJsonUtils.java:
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@@ -446,6 +459,107 @@ private static Object dejsonize(String input) {
return JSON_PATH_JSON_PROVIDER.parse(input);
}
+ /**
+ * Returns an upper-case flag describing the type of the parsed JSON
value, mirroring Calcite's
+ * {@code JsonFunctions.jsonType}.
+ *
+ * <p>JSON's grammar cannot express a date, and it has a single number
rule with no width, so
+ * {@code DATE} and {@code FLOAT} cannot be read off the Java type the
parser produces: a date
+ * arrives as a {@link String}, and every non-integral number arrives as a
{@link BigDecimal}
+ * (the shared mapper enables {@code USE_BIG_DECIMAL_FOR_FLOATS}). Both
flags are therefore
Review Comment:
why do we need to put anything about 3rd party libs configuration in this
javadoc?
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