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https://issues.apache.org/jira/browse/CALCITE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17347822#comment-17347822
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Julian Hyde commented on CALCITE-4614:
--------------------------------------

This would be awesome. It's always a difficult call whether to create a new 
dialect, but my impression is that Exasol does not slavishly follow another 
dialect (say PostgreSQL); the the differences will tend to widen over time, and 
therefore a separate dialect makes sense.

You could use a previous dialect, say Clickhouse (CALCITE-2157, commit 
[39e58566|https://github.com/apache/calcite/commit/39e58566c1ac02824d99ae9260d3315539efd57e])
 as a template.

> Exasol dialect implementation
> -----------------------------
>
>                 Key: CALCITE-4614
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4614
>             Project: Calcite
>          Issue Type: New Feature
>          Components: jdbc-adapter
>            Reporter: TJ Banghart
>            Priority: Major
>
> Exasol is a columnar DBMS for OLAP: [https://www.exasol.com/]
> Calcite's current `PostgresqlSqlDialect` works well with Exasol's jdbc 
> adapter but there are a few differences (e.g. additional datatypes, some 
> calls are slightly different, identifiers, etc.)



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