Julian Hyde created CALCITE-4427:
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Summary: Make SUBSTRING operator comply with ISO standard SQL
Key: CALCITE-4427
URL: https://issues.apache.org/jira/browse/CALCITE-4427
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Make {{SUBSTRING}} operator comply with ISO standard SQL. It currently complies
with BigQuery standard SQL, which gives different behavior when start is
negative. See discussion in CALCITE-4408.
Add an option to get the BigQuery behavior, for those who want it.
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