[CALCITE-7447] RelRoot.project() adds Project for DDL nodes#4841
Merged
caicancai merged 1 commit intoapache:mainfrom Mar 22, 2026
Merged
[CALCITE-7447] RelRoot.project() adds Project for DDL nodes#4841caicancai merged 1 commit intoapache:mainfrom
caicancai merged 1 commit intoapache:mainfrom
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Signed-off-by: Niels Pardon <par@zurich.ibm.com>
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mihaibudiu
approved these changes
Mar 20, 2026
xiedeyantu
approved these changes
Mar 21, 2026
caicancai
approved these changes
Mar 22, 2026
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Jira Link
CALCITE-7447
Changes Proposed
While Calcite does not officially have DDL RelNodes we are extending Calcite in substrait-java to be able to work with DDL operations as RelNodes.
When we then use the
RelRoot.project(true)function to access theRelRoot.relthese DDL operations are currently getting wrapped in aLogicalProjectwhich obviously does not make sense.Since the code in
RelRoot.project()already checks whether theRelRoot.kindis a DML operation we can simply also check whether it is a DDL operation to avoid falsely wrapping those operations in aLogicalProject.