Alberic Liu comments

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                                            Alberic Liu

[CALCITE-6437]For druid sql JSON_OBJECT() function results in RUNTIME_FAILURE when querying INFORMATION_SCHEMA.COLUMNS

@kgyrtkirk - I have tried this solution to add SqlKind.JSON_OBJECT, and add this as following: ` public static final Set FUNCTION = EnumSet.of(OTHER_FUNCTION, ROW, TRIM, LTRIM, RTRIM, CAST, REVERSE, JDBC_FN,...

[CALCITE-6437]For druid sql JSON_OBJECT() function results in RUNTIME_FAILURE when querying INFORMATION_SCHEMA.COLUMNS

@NobiGo @kgyrtkirk @mihaibudiu in Druid the return type of json_object function is ExpressionType.NESTED_DATA, but in Calcite, the return type of json_object is VARCHAR(2000). From current calcite logic, if can not...

Fix the druid json_object issue

@FrankChen021, @kgyrtkirk and @cryptoe i am creating the test case in calcite first, still working on this. After, i will create the test case in druid

Fix the druid json_object issue

> `Bindables` mode hI @kgyrtkirk Thanks for your suggestion, I have switch to SqlStdOperatorTable.JSON_OBJECT May i know what is your idea of SqlStdOperator versions solution?

Fix the druid json_object issue

@kgyrtkirk i have try to add some calcite rule for plan, but it still need to get sqlfunction from rextableimp, i do not have any other work around now, i...

Fix the druid json_object issue

@kgyrtkirk thanks let me know your solution, i will try this week.