The SUBSTRING function in SqlStdOperatorTable may be what you needs. [1] https://github.com/apache/calcite/blob/614b4350f558a4fabaafc06fef9689ec4c267994/core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java#L1428
Best, Danny Chan 在 2019年6月7日 +0800 AM1:01，Jess Balint <[email protected]>，写道： > Is there a function which searches for a substring? Thanks. > > Jess
