vinoyang created FLINK-10281:
--------------------------------
Summary: Table function parse regular expression contains
backslash failed
Key: FLINK-10281
URL: https://issues.apache.org/jira/browse/FLINK-10281
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Reporter: vinoyang
Assignee: vinoyang
for example, regular expression matches text ("\w") or number ("\d") :
{code:java}
testAllApis(
"foothebar".regexExtract("foo([\\w]+)", 1), //OK, the method
got 'foo([\w]+)'
"'foothebar'.regexExtract('foo([\\\\w]+)', 1)", //failed, the
method got 'foo([\\w]+)' returns "", but if pass 'foo([\\w]+)' would get
compile error.
"REGEX_EXTRACT('foothebar', 'foo([\\\\w]+)', 1)", //OK, the method got
'foo([\w]+)' but must pass four '\'
"thebar"
)
{code}
the "similar to" function has the same issue.
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