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Sascha Wiegleb commented on SPARK-17647: ---------------------------------------- I have tested this behavior with spark 2.4.2 and it seems to be that the bug is still there. With: {code:java} spark.sql.parser.escapedStringLiterals=true {code} backslash it is working, but I run into failures with escaping " and ' . {code:java} the escape character is not allowed to precede '\"' {code} I have tested the behavior with the following special characters and their escaping: {code:java} _ % \ ' " {code} So both modes will not cover the full spectrum of escaping special characters. > 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 > Priority: Major > 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 (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org