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Posted to dev@calcite.apache.org by "Guillaume Massé (Jira)" <ji...@apache.org> on 2023/06/28 22:48:00 UTC
[jira] [Created] (CALCITE-5807) implement substring_index in Apache Spark Library
Guillaume Massé created CALCITE-5807:
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Summary: implement substring_index in Apache Spark Library
Key: CALCITE-5807
URL: https://issues.apache.org/jira/browse/CALCITE-5807
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Guillaume Massé
[https://spark.apache.org/docs/2.3.0/api/sql/#substring_index]
{code:java}
substring_index(str, delim, count) - Returns the substring from str before count occurrences of the delimiter delim. If count is positive, everything to the left of the final delimiter (counting from the left) is returned. If count is negative, everything to the right of the final delimiter (counting from the right) is returned. The function substring_index performs a case-sensitive match when searching for delim.
Examples:
> SELECT substring_index('www.apache.org', '.', 2); www.apache
{code}
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