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Timo Walther closed FLINK-34067. -------------------------------- Fix Version/s: 1.19.0 Resolution: Fixed Fixed in master: 96eea964d2a75d9d953bb14485ed40c9b339f9a2 > Fix javacc warnings in flink-sql-parser > --------------------------------------- > > Key: FLINK-34067 > URL: https://issues.apache.org/jira/browse/FLINK-34067 > Project: Flink > Issue Type: Improvement > Affects Versions: 1.19.0 > Reporter: Jim Hughes > Assignee: Jim Hughes > Priority: Minor > Labels: pull-request-available > Fix For: 1.19.0 > > > While extending the Flink SQL parser, I noticed these two warnings: > ``` > [INFO] — javacc:2.4:javacc (javacc) @ flink-sql-parser --- > > Java Compiler Compiler Version 4.0 (Parser Generator) > > (type "javacc" with no arguments for help) > > Reading from file > .../flink-table/flink-sql-parser/target/generated-sources/javacc/Parser.jj . > . . > Note: UNICODE_INPUT option is specified. Please make sure you create the > parser/lexer using a Reader with the correct character encoding. > Warning: Choice conflict involving two expansions at > > line 2043, column 13 and line 2052, column 9 respectively. > > A common prefix is: "IF" > Consider using > a lookahead of 2 for earlier expansion. > > Warning: Choice conflict involving two expansions at > > line 2097, column 13 and line 2105, column 8 respectively. > > A common prefix is: "IF" > > Consider using a lookahead of 2 for earlier expansion. > ``` > As the warning suggestions, adding `LOOKAHEAD(2)` in a few places addresses > the warning. -- This message was sent by Atlassian Jira (v8.20.10#820010)