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https://issues.apache.org/jira/browse/KYLIN-5736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyang closed KYLIN-5736.
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> When query includes a large number of in conditional statements, the SQL
> recommendation reports an error
> --------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-5736
> URL: https://issues.apache.org/jira/browse/KYLIN-5736
> Project: Kylin
> Issue Type: Bug
> Affects Versions: 5.0-beta
> Reporter: zhong.zhu
> Assignee: zhong.zhu
> Priority: Major
> Fix For: 5.0.0
>
>
> A large number of in queries exist, and null pointer errors occur during
> recommendation. As a result, effective intelligent recommendation cannot be
> generated. The logs are as follows:
> Root cause: null
> java.util.regex.Pattern.compile(Pattern.java:1685)
> java.util.regex.Pattern.<init>(Pattern.java:1351)
> java.util.regex.Pattern.compile(Pattern.java:1028)
> java.lang.String.replaceAll(String.java:2223)
> org.apache.calcite.sql.SqlDialect.quoteIdentifier(SqlDialect.java:242)
> org.apache.calcite.sql.pretty.SqlPrettyWriter.identifier(SqlPrettyWriter.java:909)
> org.apache.calcite.sql.SqlIdentifier.unparse(SqlIdentifier.java:298)
> org.apache.calcite.sql.SqlUtil.unparseInSyntax(SqlUtil.java:344)
> org.apache.calcite.sql.SqlSyntax$4.unparse(SqlSyntax.java:79)
> org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:332)
> org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:321)
> org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103)
> org.apache.calcite.sql.SqlUtil.unparseBinarySyntax(SqlUtil.java:323)
> org.apache.calcite.sql.SqlSyntax$3.unparse(SqlSyntax.java:65)
> org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:332)
> org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:321)
> org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103)
> org.apache.calcite.sql.SqlUtil.unparseBinarySyntax(SqlUtil.java:323)
> org.apache.calcite.sql.SqlSyntax$3.unparse(SqlSyntax.java:65)
> org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:332)
> org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:321)
> org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103)
> org.apache.calcite.sql.SqlUtil.unparseBinarySyntax(SqlUtil.java:323)
> org.apache.calcite.sql.SqlSyntax$3.unparse(SqlSyntax.java:65)
> org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:332)
> org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:321)
> org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103)
>
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