[jira] [Created] (CALCITE-1426) Support customized star expansion in RelDataType

["Maryann Xue (JIRA)" <ji...@apache.org>]

Maryann Xue created CALCITE-1426:
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             Summary: Support customized star expansion in RelDataType
                 Key: CALCITE-1426
                 URL: https://issues.apache.org/jira/browse/CALCITE-1426
             Project: Calcite
          Issue Type: Improvement
          Components: core
            Reporter: Maryann Xue
            Assignee: Maryann Xue
             Fix For: 1.11.0


This is to support PHOENIX-3357. Phoenix allows users to define columns in arbitrary order regardless of their column families, for example,
{code}
CREATE TABLE t
  (a_string varchar not null, cf1.a integer, cf1.b varchar, col1 integer, cf2.c varchar, cf2.d integer, col2 integer
  CONSTRAINT pk PRIMARY KEY (a_string))
{code}
, in which columns from the same family (i.e., col1 and col2 from the default column family) are not necessarily adjacent to each other.
As a result, when we return row type for a PhoenixTable, we re-order the columns in order to fit them into the two-level column structure. This works fine in most cases except when:
1) "upsert into t ..." would require a different row type even after flattening (we do not have flattening so far, still need to implement CALCITE-1425).
2) select * from t would return a different column order.



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