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https://issues.apache.org/jira/browse/CALCITE-4980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17481522#comment-17481522
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Xurenhe commented on CALCITE-4980:
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[~nobigo]
Got it
I rebase all commit, please review again thanks
PR: https://github.com/apache/calcite/pull/2692
> Babel parser support MySQL NULL-safe equal operator '<=>'
> ---------------------------------------------------------
>
> Key: CALCITE-4980
> URL: https://issues.apache.org/jira/browse/CALCITE-4980
> Project: Calcite
> Issue Type: New Feature
> Components: babel, core
> Reporter: Xurenhe
> Assignee: Xurenhe
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> Babel parser support MySQL equal operator '<=>'.
> Mysql link:
> [https://dev.mysql.com/doc/refman/8.0/en/comparison-operators.html#operator_equal-to]
>
> {code:java}
> // test case
> @Test void testParseEqual() {
> final String sql = "select '1' <=> '2' from t";
> final String expected = ""
> + "SELECT 1' <=> '2'\n"
> + "FROM `T`";
> sql(sql).ok(expected);
> } {code}
> {code:java}
> // exception stack
> java.lang.RuntimeException: Error while parsing SQL: select '1' <=> '2'
> from t
> at
> org.apache.calcite.sql.parser.SqlParserTest$TesterImpl.parseStmtAndHandleEx(SqlParserTest.java:9704)
> at
> org.apache.calcite.sql.parser.SqlParserTest$TesterImpl.check(SqlParserTest.java:9690)
> at
> org.apache.calcite.sql.parser.SqlParserTest$Sql.ok(SqlParserTest.java:10047)
> at
> org.apache.calcite.test.BabelParserTest.testParseEqual(BabelParserTest.java:246)
> Caused by: java.lang.RuntimeException:
> org.apache.calcite.sql.parser.SqlParseException: Encountered "<= >" at line
> 1, column 12.
> Was expecting one of: {code}
>
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