Leonard Xu created FLINK-15366:
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Summary: Dimension table do not support computed column
Key: FLINK-15366
URL: https://issues.apache.org/jira/browse/FLINK-15366
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Affects Versions: 1.10.0
Reporter: Leonard Xu
In Flink 1.10, we bring computed column feature, but I found dimension table do
not support this feature.
public static final String mysqlCurrencyDDL = "CREATE TABLE currency (\n" +
" currency_id BIGINT,\n" +
" currency_name STRING,\n" +
" rate DECIMAL(38, 4),\n" +
" currency_time TIMESTAMP(3),\n" +
" country STRING,\n" +
" timestamp6 TIMESTAMP(6),\n" +
" currency_next as currency_id + 1,\n" +
" time6 TIME(6),\n" +
" gdp DECIMAL(10, 4)\n" +
") WITH (\n" +
" 'connector.type' = 'jdbc',\n" +
" 'connector.url' = 'jdbc:mysql://localhost:3306/test',\n" +
" 'connector.username' = 'root'," +
" 'connector.table' = 'currency',\n" +
" 'connector.driver' = 'com.mysql.jdbc.Driver',\n" +
" 'connector.lookup.cache.max-rows' = '500', \n" +
" 'connector.lookup.cache.ttl' = '10s',\n" +
" 'connector.lookup.max-retries' = '3'" +
")";
//
{code:java}
//
Exception in thread "main" java.lang.ClassCastException:
org.apache.calcite.rel.logical.LogicalProject cannot be cast to
org.apache.calcite.rel.core.TableScanException in thread "main"
java.lang.ClassCastException: org.apache.calcite.rel.logical.LogicalProject
cannot be cast to org.apache.calcite.rel.core.TableScan at
org.apache.calcite.sql2rel.SqlToRelConverter.snapshotTemporalTable(SqlToRelConverter.java:2438)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2062)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2005)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2085)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:646)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:627)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3181)
at
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:563)
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:148)
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:135)
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.toQueryOperation(SqlToOperationConverter.java:523)
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlQuery(SqlToOperationConverter.java:437)
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:154)
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlInsert(SqlToOperationConverter.java:343)
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:142)
at
org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:66)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:484)
at job.KafkaJoinJdbc2Jdbc.main(KafkaJoinJdbc2Jdbc.java:59)
Process finished with exit code 1
{code}
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