Jakob Odersky created SPARK-18018:
-------------------------------------
Summary: Specify alternate escape character in 'LIKE' expression
Key: SPARK-18018
URL: https://issues.apache.org/jira/browse/SPARK-18018
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Jakob Odersky
Spark currently uses the backslash character (\) to escape patterns in
'LIKE' expressions.
Other RDBMS ([MS|https://msdn.microsoft.com/en-us/library/ms179859.aspx],
[Oracle|https://docs.oracle.com/cd/B12037_01/server.101/b10759/conditions016.htm],
[DB2|http://www.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/sqlref/src/tpc/db2z_likepredicate.html],
[MySQL|http://dev.mysql.com/doc/refman/5.7/en/string-comparison-functions.html],
[PostgreSQL|https://www.postgresql.org/docs/9.0/static/functions-matching.html],
[Hive|https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF])
support specifying an alternate escape character with an extended syntax of the
`LIKE` operator.
The syntax is the same in all above mentioned systems and is described as
follows:
{code}
expression LIKE pattern [ESCAPE escapeChar]
{code}
where {{escapeChar}} is a single-character expression that will replace the
backslash as escape character.
Adding this extended to Spark SQL would be a usability improvement for users
coming from other systems.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
