Mihai Budiu created CALCITE-7251:
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Summary: SEARCH and WINDOW operations lose source position
information
Key: CALCITE-7251
URL: https://issues.apache.org/jira/browse/CALCITE-7251
Project: Calcite
Issue Type: Improvement
Components: core
Affects Versions: 1.40.0
Reporter: Mihai Budiu
Assignee: Mihai Budiu
In [CALCITE-6701] I have added support for some Rex nodes to carry source
information position. I propose adding this to more kinds of nodes: SEARCH and
WINDOW are two examples that are frequently used and easy to modify. This is
really a kind of debugging information, and it can help provide better runtime
diagnostics.
SEARCH nodes are tricky, because by construction they combine information from
multiple expressions; the proposal is to have one position per search which is
the SUM of the positions of the component expressions. This leads to some
information loss, but it's better than nothing, and in practice the components
are very likely to come from nearby positions in the source code.
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