TO_JSON_STRING with DATE field does not produce valid JSON - quotes missing

[pavelfomin]

What happened?

The following test fails

    def "use Job.getQueryResults with TO_JSON_STRING"() {
        given:
        QueryJobConfiguration queryJobConfiguration = QueryJobConfiguration
            .newBuilder("SELECT TO_JSON_STRING(t,true) from (SELECT * FROM dataset.table) as t")
            .build()

        JobId jobId = JobId.newBuilder().setProject(project).setRandomJob().build()
        Job job = bigQuery.create(JobInfo.newBuilder(queryJobConfiguration)
            .setJobId(jobId)
            .build())

        when:
        TableResult tableResult = job.getQueryResults()
        List<Map> results = tableResult.streamAll().map(f ->
            objectMapper.readValue(f[0].value.toString(), Map)
        ).toList()

        then:
        results.size() == 2
    }

This is because DATE field value is missing quotes:

{"id":1,"name":"alice","dob":1990-01-01}

Note. Date field value is missing quotes. Works as expected in real BQ.

What did you expect to happen?

Date field in the JSON should be quoted.

How can we reproduce it (as minimally and precisely as possible)?

git clone -b feature/TO_JSON_STRING git@github.com:pavelfomin/spring-boot-bq-example.git
./gradlew clean build

Anything else we need to know?

Possibly related to #218, #265, #32

[ohaibbq]

Yes, you're correct in that this is related to those issues! @coreyp1 put together a patch based off of my team's original PR here: goccy/go-zetasqlite#111

I'll revisit this issue soon.

[ohaibbq]

This was fixed and released in the Recidiviz fork of the emulator v0.6.6-recidiviz.1
https://github.com/Recidiviz/bigquery-emulator/releases/tag/v0.6.6-recidiviz.1

[pavelfomin]

Thank you @ohaibbq! I can confirm that the fix is working on our side.