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Posted to issues@flink.apache.org by "Dawid Wysakowicz (Jira)" <ji...@apache.org> on 2020/08/11 07:39:00 UTC
[jira] [Commented] (FLINK-18889) New Async Table Function type
inference fails
[ https://issues.apache.org/jira/browse/FLINK-18889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17175309#comment-17175309 ]
Dawid Wysakowicz commented on FLINK-18889:
------------------------------------------
This might be a duplicate of FLINK-18890 cc [~twalthr]
> 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
> Priority: Major
>
> {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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