VasShabu commented on code in PR #29365: URL: https://github.com/apache/flink/pull/29365#discussion_r4313383792
########## flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/plan/nodes/exec/stream/DeduplicateKeepFirstTestPrograms.java: ########## @@ -0,0 +1,560 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.table.planner.plan.nodes.exec.stream; + +import org.apache.flink.table.api.ValidationException; +import org.apache.flink.table.test.program.SinkTestStep; +import org.apache.flink.table.test.program.SourceTestStep; +import org.apache.flink.table.test.program.TableTestProgram; +import org.apache.flink.types.Row; +import org.apache.flink.types.RowKind; + +import java.time.Duration; +import java.time.Instant; + +import static org.apache.flink.table.api.Expressions.$; +import static org.apache.flink.table.api.Expressions.lit; + +/** {@link TableTestProgram} definitions for testing the built-in DEDUPLICATE_KEEP_FIRST PTF. */ +public class DeduplicateKeepFirstTestPrograms { + + private static final String[] USER_EVENTS_SCHEMA = {"user_name STRING", "action STRING"}; + + private static final String[] TIMED_EVENTS_SCHEMA = { + "user_name STRING", + "action STRING", + "ts TIMESTAMP_LTZ(3)", + "WATERMARK FOR ts AS ts - INTERVAL '10' SECOND" + }; + + public static final TableTestProgram KEYED = + TableTestProgram.of( + "deduplicate-keep-first-keyed", + "only the first row per PARTITION BY key is emitted") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues(Row.of("Vas", "login"), Row.of("Vas", "click")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name)") + .build(); + + public static final TableTestProgram TABLE_API = + TableTestProgram.of( + "deduplicate-keep-first-table-api", + "the generic Table API process() call invokes the PTF, matching " + + "the SQL form") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues(Row.of("Vas", "login"), Row.of("Vas", "click")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runTableApi( + env -> + env.from("user_events") + .partitionBy($("user_name")) + .process("DEDUPLICATE_KEEP_FIRST"), + "sink") + .build(); + + public static final TableTestProgram TABLE_API_WITH_ARGS = + TableTestProgram.of( + "deduplicate-keep-first-table-api-with-args", + "the Table API process() call passes the optional state_ttl and " + + "reset_ttl_on_duplicate as named arguments") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues(Row.of("Vas", "login"), Row.of("Vas", "click")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runTableApi( + env -> + env.from("user_events") + .partitionBy($("user_name")) + .process( + "DEDUPLICATE_KEEP_FIRST", + lit(Duration.ofSeconds(5)) + .asArgument("state_ttl"), + lit(false) + .asArgument("reset_ttl_on_duplicate")), + "sink") + .build(); + + public static final TableTestProgram MULTI_KEY = + TableTestProgram.of( + "deduplicate-keep-first-multi-key", + "each PARTITION BY key keeps its own first row, independently of " + + "interleaving with other keys") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login"), + Row.of("Alice", "click"), + Row.of("Vas", "click"), + Row.of("Alice", "view")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues( + Row.ofKind(RowKind.INSERT, "Vas", "login"), + Row.ofKind(RowKind.INSERT, "Alice", "click")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name)") + .build(); + + public static final TableTestProgram MULTI_COLUMN_KEY = + TableTestProgram.of( + "deduplicate-keep-first-multi-column-key", + "a multi-column PARTITION BY keeps the first row per composite key; " + + "rows differing in either key column form distinct groups") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema("region STRING", "user_name STRING", "action STRING") + .producedValues( + Row.of("EU", "Vas", "login"), + Row.of("EU", "Vas", "click"), + Row.of("US", "Vas", "signup"), + Row.of("EU", "Alice", "view")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema("region STRING", "user_name STRING", "action STRING") + .consumedValues( + Row.ofKind(RowKind.INSERT, "EU", "Vas", "login"), + Row.ofKind(RowKind.INSERT, "US", "Vas", "signup"), + Row.ofKind(RowKind.INSERT, "EU", "Alice", "view")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY (region, user_name))") + .build(); + + public static final TableTestProgram NULL_KEY = + TableTestProgram.of( + "deduplicate-keep-first-null-key", + "a NULL PARTITION BY key forms its own dedup group, keeping only " + + "its first row") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of(null, "login"), + Row.of("Vas", "click"), + Row.of(null, "click")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues( + Row.ofKind(RowKind.INSERT, null, "login"), + Row.ofKind(RowKind.INSERT, "Vas", "click")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name)") + .build(); + + public static final TableTestProgram NO_PARTITION_BY = + TableTestProgram.of( + "deduplicate-keep-first-no-partition-by", + "without PARTITION BY the whole input is one group: only the " + + "very first row is emitted, regardless of its content") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login"), + Row.of("Alice", "click"), + Row.of("Bob", "view")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(input => TABLE user_events)") + .build(); + + public static final TableTestProgram RESET_WITH_ZERO_TTL = + TableTestProgram.of( + "deduplicate-keep-first-reset-with-zero-ttl", + "reset_ttl_on_duplicate=TRUE with state_ttl=INTERVAL '0' (TTL " + + "disabled): only the first row per key is emitted") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login"), + Row.of("Vas", "click"), + Row.of("Vas", "view"), + Row.of("Vas", "logout"), + Row.of("Vas", "login")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name, " + + "state_ttl => INTERVAL '0' SECOND, " + + "reset_ttl_on_duplicate => TRUE)") + .build(); + + public static final TableTestProgram NO_TTL_RESET = + TableTestProgram.of( + "deduplicate-keep-first-no-ttl-reset", + "reset_ttl_on_duplicate=FALSE still emits only the first row per key") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login"), + Row.of("Vas", "click"), + Row.of("Vas", "view")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "login")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name, " + + "state_ttl => INTERVAL '5' SECOND, " + + "reset_ttl_on_duplicate => FALSE)") + .build(); + + public static final TableTestProgram WHOLE_ROW_KEY = + TableTestProgram.of( + "deduplicate-keep-first-whole-row-key", + "PARTITION BY over every column deduplicates exact-duplicate rows, " + + "keeping one row per distinct payload") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(USER_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login"), + Row.of("Vas", "login"), + Row.of("Vas", "click")) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema(USER_EVENTS_SCHEMA) + .consumedValues( + Row.ofKind(RowKind.INSERT, "Vas", "login"), + Row.ofKind(RowKind.INSERT, "Vas", "click")) + .build()) + .runSql( + "INSERT INTO sink SELECT * FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY (user_name, action))") + .build(); + + public static final TableTestProgram EVENT_TIME = + TableTestProgram.of( + "deduplicate-keep-first-event-time", + "with on_time, the row with the smallest event time is kept per key, " + + "not the first to arrive") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema(TIMED_EVENTS_SCHEMA) + .producedValues( + Row.of("Vas", "login", Instant.ofEpochMilli(3000)), + Row.of("Vas", "click", Instant.ofEpochMilli(1000)), + Row.of("Vas", "view", Instant.ofEpochMilli(5000))) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema("user_name STRING", "action STRING") + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "click")) + .build()) + .runSql( + "INSERT INTO sink SELECT user_name, action FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name, " + + "on_time => DESCRIPTOR(ts))") + .build(); + + public static final TableTestProgram EVENT_TIME_CANDIDATE_FIELD_NAMES = + TableTestProgram.of( + "deduplicate-keep-first-event-time-candidate-field-names", + "with on_time, input columns named like the buffered candidate's " + + "fields are emitted unchanged for the earliest row") + .setupTableSource( + SourceTestStep.newBuilder("user_events") + .addSchema( + "user_name STRING", + "payload STRING", + "event_time BIGINT", + "ts TIMESTAMP_LTZ(3)", + "WATERMARK FOR ts AS ts - INTERVAL '10' SECOND") + .producedValues( + Row.of("Vas", "login", 3L, Instant.ofEpochMilli(3000)), + Row.of("Vas", "click", 1L, Instant.ofEpochMilli(1000))) + .build()) + .setupTableSink( + SinkTestStep.newBuilder("sink") + .addSchema( + "user_name STRING", + "payload STRING", + "event_time BIGINT") + .consumedValues(Row.ofKind(RowKind.INSERT, "Vas", "click", 1L)) + .build()) + .runSql( + "INSERT INTO sink SELECT user_name, payload, event_time " + + "FROM DEDUPLICATE_KEEP_FIRST(" + + "input => TABLE user_events PARTITION BY user_name, " + + "on_time => DESCRIPTOR(ts))") + .build(); + + public static final TableTestProgram EVENT_TIME_MULTI_KEY = Review Comment: dropped -- This is an automated message from the Apache Git Service. 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