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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