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Posted to issues@flink.apache.org by "Mulan (Jira)" <ji...@apache.org> on 2020/08/11 06:00:00 UTC
[jira] [Created] (FLINK-18889) New Async Table Function type
inference fails
Mulan created FLINK-18889:
-----------------------------
Summary: New Async Table Function type inference fails
Key: FLINK-18889
URL: https://issues.apache.org/jira/browse/FLINK-18889
Project: Flink
Issue Type: Bug
Components: Table SQL / API
Affects Versions: 1.11.1
Reporter: Mulan
{code:java}
@FunctionHint(
input = @DataTypeHint("STRING"),
output = @DataTypeHint("ROW<ct STRING>")
)
public class RedisAsyncTableFunction extends AsyncTableFunction<Row> {
private RedisClient redisClient;
private StatefulRedisConnection<String, String> connection;
private RedisKeyAsyncCommands<String, String> async;
private static final String PREFIX = "redis://";
private static final String DEFAULT_DB = "0";
private static final String DEFAULT_URL = "localhost:6379";
private static final String DEFAULT_PASSWORD = "";
@Override
public void open(FunctionContext context) throws Exception {
final String url = DEFAULT_URL;
final String password = DEFAULT_PASSWORD;
final String database = DEFAULT_DB;
StringBuilder redisUri = new StringBuilder();
redisUri.append(PREFIX).append(password).append(url).append("/").append(database);
redisClient = RedisClient.create(redisUri.toString());
connection = redisClient.connect();
async = connection.async();
}
public void eval(CompletableFuture<Collection<Row>> outputFuture, String key) {
RedisFuture<Map<String, String>> redisFuture = ((RedisHashAsyncCommands) async).hgetall(key);
redisFuture.thenAccept(new Consumer<Map<String, String>>() {
@Override
public void accept(Map<String, String> values) {
int len = 1;
Row row = new Row(len);
row.setField(0, values.get("ct"));
outputFuture.complete(Collections.singletonList(row));
}
});
}
@Override
public void close() throws Exception {
if (connection != null){
connection.close();
}
if (redisClient != null){
redisClient.shutdown();
}
}
}
{code}
{code:java}
tEnv.createTemporarySystemFunction("lookup_redis", RedisAsyncTableFunction.class);
{code}
{code:java}
Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation failed. From line 3, column 31 to line 3, column 48: No match found for function signature lookup_redis(<CHARACTER>)
at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:146)
at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108)
at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:185)
at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlInsert(SqlToOperationConverter.java:525)
at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:202)
at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:684)
at hua.mulan.slink.SqlSubmit.callInsertInto(SqlSubmit.java:100)
at hua.mulan.slink.SqlSubmit.callCommand(SqlSubmit.java:75)
at hua.mulan.slink.SqlSubmit.run(SqlSubmit.java:57)
at hua.mulan.slink.SqlSubmit.main(SqlSubmit.java:38)
Caused by: org.apache.calcite.runtime.CalciteContextException: From line 3, column 31 to line 3, column 48: No match found for function signature lookup_redis(<CHARACTER>)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:839)
at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:824)
at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5089)
at org.apache.calcite.sql.validate.SqlValidatorImpl.handleUnresolvedFunction(SqlValidatorImpl.java:1882)
at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:305)
at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:218)
at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5858)
at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5845)
at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)
at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1800)
at org.apache.calcite.sql.validate.ProcedureNamespace.validateImpl(ProcedureNamespace.java:57)
at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3256)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3238)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:3303)
at org.apache.flink.table.planner.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.java:86)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3247)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510)
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:1110)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059)
at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766)
at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141)
... 10 more
Caused by: org.apache.calcite.sql.validate.SqlValidatorException: No match found for function signature lookup_redis(<CHARACTER>)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:550)
... 38 more
{code}
Is similar issue?
https://issues.apache.org/jira/browse/FLINK-18520
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