[jira] [Created] (SPARK-45262) Improve the description for `LIKE`

["Max Gekk (Jira)" <ji...@apache.org>]

Max Gekk created SPARK-45262:
--------------------------------

             Summary: Improve the description for `LIKE`
                 Key: SPARK-45262
                 URL: https://issues.apache.org/jira/browse/SPARK-45262
             Project: Spark
          Issue Type: Documentation
          Components: SQL
    Affects Versions: 4.0.0
            Reporter: Max Gekk
            Assignee: Max Gekk


The description of `LIKE` says:
{code}
... in order to match "\abc", the pattern should be "\\abc"
{code}
but in Spark SQL shell:
{code:sql}
spark-sql (default)> SELECT c FROM t;
\abc
spark-sql (default)> SELECT c LIKE "\\abc" FROM t;
[INVALID_FORMAT.ESC_IN_THE_MIDDLE] The format is invalid: '\\abc'. The escape character is not allowed to precede 'a'.
spark-sql (default)> SELECT c LIKE "\\\\abc" FROM t;
true
{code}



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