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https://issues.apache.org/jira/browse/CALCITE-7407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18071039#comment-18071039
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hongyu guo commented on CALCITE-7407:
-------------------------------------
I found that InferTypes.RETURN_TYPE can fix this bug, but it does not work in
some cases, such as:
SELECT ? || 'a' FROM t
because RETURN_TYPE requires an enclosing SqlCall. Also, InferTypes.FIRST_KNOWN
produces the wrong result type, CHAR(x), which adds padding spaces.
> Illegal use of dynamic parameter with ||
> ----------------------------------------
>
> Key: CALCITE-7407
> URL: https://issues.apache.org/jira/browse/CALCITE-7407
> Project: Calcite
> Issue Type: Bug
> Components: jdbc-driver
> Affects Versions: 1.41.0
> Reporter: Jerome Isaac Haltom
> Priority: Minor
> Labels: pull-request-available
>
> ---- java.sql.SQLException : Error while preparing statement [SELECT
> "c"."CustomerID", "c"."Address", "c"."City", "c"."CompanyName",
> "c"."ContactName", "c"."ContactTitle", "c"."Country", "c"."Fax", "c"."Phone",
> "c"."PostalCode", "c"."Region"
> FROM "Customers" AS "c"
> WHERE "c"."CustomerID" = ((? || 'KI'))]
> -------- org.apache.calcite.runtime.CalciteContextException : At line 3,
> column 28
> ------------ org.apache.calcite.sql.validate.SqlValidatorException : Illegal
> use of dynamic parameter
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