Thanks Julian. I'll file a JIRA. -:) Thanks, Jincheng
2017-07-18 3:16 GMT+08:00 Julian Hyde <jh...@apache.org>: > It’s a similar situation to the “!=“ operator. The standard says “<>”, but > several databases allow “!=“ as an alternative. > > (There seems to be a common goal to make SQL look more like C. Whereas its > original designers, IBM, apparently wanted to make it look like COBOL or > PL/1. Hmmm.) > > Calcite allows “!=“ if SqlConformance.isBangEqualAllowed() returns true > (which is true in the LENIENT, ORACLE_10 and ORACLE_12 conformance > settings)[1]. We could do something similar for “%”. Please log a JIRA > case. Contributions welcome. > > Julian > > [1] https://issues.apache.org/jira/browse/CALCITE-1374 < > https://issues.apache.org/jira/browse/CALCITE-1374> > > > > On Jul 17, 2017, at 12:36 AM, jincheng sun <sunjincheng...@gmail.com> > wrote: > > > > Hi guys, > > > > Currently the following sql is not supported. > > > > SELECT a%3 FROM T > > > > * We get the exception:* > > > > Caused by: org.apache.calcite.sql.parser.SqlParseException: Lexical > > error at line 1, column 9. Encountered: "%" (37), after : "" > > at > > org.apache.calcite.sql.parser.impl.SqlParserImpl.convertException( > SqlParserImpl.java:396) > > at > > org.apache.calcite.sql.parser.impl.SqlParserImpl.normalizeException( > SqlParserImpl.java:129) > > > > > > *The main reason is we do not add % as a operator token:* > > > > /* OPERATORS */ > > > > <DEFAULT, DQID, BTID> TOKEN : > > { > > < EQ: "=" > > > | < GT: ">" > > > | < LT: "<" > > > | < HOOK: "?" > > > | < COLON: ":" > > > | < LE: "<=" > > > | < GE: ">=" > > > | < NE: "<>" > > > | < NE2: "!=" > > > | < PLUS: "+" > > > | < MINUS: "-" > > > | < STAR: "*" > > > | < SLASH: "/" > > > | < CONCAT: "||" > > > | < NAMED_ARGUMENT_ASSIGNMENT: "=>" > > > | < DOUBLE_PERIOD: ".." > > > | < QUOTE: "'" > > > | < DOUBLE_QUOTE: "\"" > > > | < VERTICAL_BAR: "|" > > > | < CARET: "^" > > > | < DOLLAR: "$" > > > } > > > > In MySQL, SQL Server are supported. For Oracle, you have to use the > > MOD function. > > > > So I'm not sure if calcite needs support, What do you think? > > > > Welcome anybody feedback. -:) > > > > Hope your opine. @Julian > > > > Best, > > > > Jincheng > >
