[jira] [Updated] (CALCITE-4450) Query on ElasticSearch table that projects varchar literal fails with JsonParseException

["Vova Vysotskyi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vova Vysotskyi updated CALCITE-4450:
------------------------------------
    Fix Version/s: 1.27.0

> Query on ElasticSearch table that projects varchar literal fails with JsonParseException
> ----------------------------------------------------------------------------------------
>
>                 Key: CALCITE-4450
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4450
>             Project: Calcite
>          Issue Type: Bug
>    Affects Versions: 1.26.0
>            Reporter: Vova Vysotskyi
>            Assignee: Vova Vysotskyi
>            Priority: Major
>             Fix For: 1.27.0
>
>
> A query that contains varchar literals in projection fails for ElasticSearch adapter. Simple test case to reproduce the issue:
> {code:java}
> @Test void projectionStringLiteral() {
>     CalciteAssert.that()
>         .with(newConnectionFactory())
>         .query(
>             String.format(Locale.ROOT, "select 'foo' as \"lit\"\n"
>                 + "from \"elastic\".\"%s\"", NAME))
>         .returns("lit=foo\n");
>   }
> {code}
> Error:
> {noformat}
> Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('f' (code 102)): was expecting comma to separate Object entries
>  at [Source: (String)"{"script_fields": {"lit":{"script": ""foo""}, "a":{"script": "params._source.a"}}}"; line: 1, column: 40]
> 	at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1840)
> {noformat}
> The problem is that {{RexToElasticsearchTranslator.visitLiteral}} method do not escape literal quotes, and forms the following string: {{"lit":""foo""}} that cannot be handled by jackson.



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