[jira] [Created] (CALCITE-2846) Document Oracle-specific functions, such as NVL and LTRIM, in the SQL reference

["Julian Hyde (JIRA)" <ji...@apache.org>]

Julian Hyde created CALCITE-2846:
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             Summary: Document Oracle-specific functions, such as NVL and LTRIM, in the SQL reference
                 Key: CALCITE-2846
                 URL: https://issues.apache.org/jira/browse/CALCITE-2846
             Project: Calcite
          Issue Type: Bug
            Reporter: Julian Hyde
            Assignee: Julian Hyde


Document Oracle-specific functions (DECODE, NVL, LTRIM, RTRIM, SUBSTR, GREATEST, LEAST) in the [SQL reference|https://calcite.apache.org/docs/reference.html].

Same goes for MySQL-specific functions (e.g. JSON_TYPE).

I don't think we should have separate lists of Oracle-specific functions and MySQL-specific functions. Because quite a few functions appear in more than one place. Better, I think, to have a concise annotation against each function which tables it occurs in.

The current list of tables is standard, oracle, spatial, mysql. Perhaps also indicate whether a function is an extension to the SQL standard but still occurs in Calcite's default table.



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