[jira] [Created] (CALCITE-3365) Don't require use of JdbcSchema in QuerySqlStatisticProvider

["Lindsey Meyer (Jira)" <ji...@apache.org>]

Lindsey Meyer created CALCITE-3365:
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             Summary: Don't require use of JdbcSchema in QuerySqlStatisticProvider
                 Key: CALCITE-3365
                 URL: https://issues.apache.org/jira/browse/CALCITE-3365
             Project: Calcite
          Issue Type: Improvement
            Reporter: Lindsey Meyer


We're trying to pass in schema data manually to process queries for BigQuery, but that causes problems in the QuerySqlStatisticProvider because it requires a JdbcSchema in order to get the dialect and dataSource, as well as using a Jdbc Builder.

I propose refactoring QuerySqlStatisticProvider to grab the dialect and dataSource using unwrap on the schema instead, so that any schema that implements unwrap methods for these types will work with QuerySqlStatisticProvider. As well as using a generic RelBuilder, instead of a JDBC_BUILDER.

cc [~julianhyde] since we have been discussing this

I've opened a PR at https://github.com/apache/calcite/pull/1467



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