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Wenchen Fan edited comment on SPARK-17647 at 12/20/17 1:06 PM: --------------------------------------------------------------- {code} spark.sql("select '\\\\' like '%\\%'").show {code} actually is {code} select '\\' like '%\%' {code} as SQL statement, after the java string escaping. was (Author: cloud_fan): {code} spark.sql("select '\\\\' like '%\\%'").show {code} actually is {code} select '\\' like '%\% {code} as SQL statement, after the java string escaping. > SQL LIKE does not handle backslashes correctly > ---------------------------------------------- > > Key: SPARK-17647 > URL: https://issues.apache.org/jira/browse/SPARK-17647 > Project: Spark > Issue Type: Bug > Components: SQL > Reporter: Xiangrui Meng > Assignee: Xiangrui Meng > Labels: correctness > Fix For: 2.1.1, 2.2.0 > > > Try the following in SQL shell: > {code} > select '\\\\' like '%\\%'; > {code} > It returned false, which is wrong. > cc: [~yhuai] [~joshrosen] > A false-negative considered previously: > {code} > select '\\\\' rlike '.*\\\\\\\\.*'; > {code} > It returned true, which is correct if we assume that the pattern is treated > as a Java string but not raw string. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org