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From "Jark Wu (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-22999) Improve exception message when identifiers using reserved keyword
Date Wed, 16 Jun 2021 06:30:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-22999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jark Wu updated FLINK-22999:
----------------------------
    Summary: Improve exception message when identifiers using reserved keyword  (was: Using
the column 'user' in Table API is not possible)

> Improve exception message when identifiers using reserved keyword
> -----------------------------------------------------------------
>
>                 Key: FLINK-22999
>                 URL: https://issues.apache.org/jira/browse/FLINK-22999
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / API
>            Reporter: Martijn Visser
>            Priority: Minor
>
> Using the following code:
> {code:java}
>         final StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env);
>         final DataStream<Row> clickStream =
>                 env.fromElements(
>                         Row.of("Bob", "ORDER_ENTERED", "1623758400"),
>                         Row.of("Alice", "ORDER_ENTERED", "1623758700"),
>                         Row.of("Bob", "ADDRESS_ENTERED", "1623759000"));
>         final Table clickTable = tableEnv.fromDataStream(clickStream).as("user","pageType",
"ts");
>         tableEnv.createTemporaryView("ClickStream", clickTable);
>         tableEnv.executeSql("CREATE VIEW FirstPageVisits AS SELECT user, pageType, ts
FROM ClickStream WHERE pageType = 'ORDER_ENTERED'");
> clickTable.execute().print();
> {code}
> Throws the following stacktrace:
> {code:java}
> Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation
failed. From line 1, column 8 to line 1, column 11: Column 'USER' not found in any table;
did you mean 'user'?
> 	at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:164)
> 	at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:107)
> 	at org.apache.flink.table.planner.utils.Expander.expanded(Expander.java:86)
> 	at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertViewQuery(SqlToOperationConverter.java:898)
> 	at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertCreateView(SqlToOperationConverter.java:868)
> 	at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:261)
> 	at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:101)
> 	at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:730)
> 	at org.apache.flink.table.examples.java.basics.StreamSQLExample.main(StreamSQLExample.java:69)
> Caused by: org.apache.calcite.runtime.CalciteContextException: From line 1, column 8
to line 1, column 11: Column 'USER' not found in any table; did you mean 'user'?
> 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
> 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> 	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> 	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
> 	at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:467)
> 	at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:883)
> 	at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:868)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:4861)
> 	at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:254)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5833)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:5982)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:5967)
> 	at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:320)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectExpr(SqlValidatorImpl.java:5416)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:398)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4061)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3347)
> 	at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
> 	at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:997)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:975)
> 	at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:952)
> 	at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:704)
> 	at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:159)
> 	... 8 more
> Caused by: org.apache.calcite.sql.validate.SqlValidatorException: Column 'USER' not found
in any table; did you mean 'user'?
> 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
> 	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> 	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> 	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
> 	at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:467)
> 	at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:560)
> 	... 28 more
> {code}
>  



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