dawidwys commented on a change in pull request #8006: [FLINK-11068][table] Convert the API classes of *Table to interfaces URL: https://github.com/apache/flink/pull/8006#discussion_r266773059
########## File path: flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/Table.java ########## @@ -0,0 +1,922 @@ +/* + * 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.api; + +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.table.expressions.Expression; +import org.apache.flink.table.functions.TableFunction; +import org.apache.flink.table.functions.TemporalTableFunction; +import org.apache.flink.table.sinks.TableSink; + +/** + * A Table is the core component of the Table API. + * Similar to how the batch and streaming APIs have DataSet and DataStream, + * the Table API is built around {@link Table}. + * + * <p>Use the methods of {@link Table} to transform data. Use {@code TableEnvironment} to convert a + * {@link Table} back to a {@code DataSet} or {@code DataStream}. + * + * <p>When using Scala a {@link Table} can also be converted using implicit conversions. + * + * <p>Java Example: + * + * <pre> + * {@code + * ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); + * BatchTableEnvironment tEnv = BatchTableEnvironment.create(env); + * + * DataSet<Tuple2<String, Integer>> set = ... + * tEnv.registerTable("MyTable", set, "a, b"); + * + * Table table = tEnv.scan("MyTable").select(...); + * ... + * Table table2 = ... + * DataSet<MyType> set2 = tEnv.toDataSet(table2, MyType.class); + * } + * </pre> + * + * <p>Scala Example: + * + * <pre> + * {@code + * val env = ExecutionEnvironment.getExecutionEnvironment + * val tEnv = BatchTableEnvironment.create(env) + * + * val set: DataSet[(String, Int)] = ... + * val table = set.toTable(tEnv, 'a, 'b) + * ... + * val table2 = ... + * val set2: DataSet[MyType] = table2.toDataSet[MyType] + * } + * </pre> + * + * <p>Operations such as {@code join}, {@code select}, {@code where} and {@code groupBy} either + * take arguments in a Scala DSL or as an expression String. Please refer to the documentation for + * the expression syntax. + * + */ +@PublicEvolving +public interface Table { + + /** + * Returns the schema of this table. + */ + TableSchema getSchema(); + + /** + * Prints the schema of this table to the console in a tree format. + */ + void printSchema(); + + /** + * Performs a selection operation. Similar to an SQL SELECT statement. The field expressions + * can contain complex expressions and aggregations. + * + * <p>Example: + * + * <pre> + * {@code + * tab.select("key, value.avg + ' The average' as average") + * } + * </pre> + */ + Table select(String fields); + + /** + * Performs a selection operation. Similar to an SQL SELECT statement. The field expressions + * can contain complex expressions and aggregations. + * + * <p>Example: + * + * <pre> + * {@code + * tab.select('key, 'value.avg + " The average" as 'average) + * } + * </pre> + */ + Table select(Expression... fields); + + /** + * Creates {@link TemporalTableFunction} backed up by this table as a history table. + * Temporal Tables represent a concept of a table that changes over time and for which + * Flink keeps track of those changes. {@link TemporalTableFunction} provides a way how to + * access those data. + * + * <p>For more information please check Flink's documentation on Temporal Tables. + * + * <p>Currently {@link TemporalTableFunction}s are only supported in streaming. + * + * @param timeAttribute Must points to a time attribute. Provides a way to compare which + * records are a newer or older version. + * @param primaryKey Defines the primary key. With primary key it is possible to update + * a row or to delete it. + * @return {@link TemporalTableFunction} which is an instance of {@link TableFunction}. + * It takes one single argument, the {@code timeAttribute}, for which it returns + * matching version of the {@link Table}, from which {@link TemporalTableFunction} + * was created. + */ + TemporalTableFunction createTemporalTableFunction(String timeAttribute, String primaryKey); + + /** + * Creates {@link TemporalTableFunction} backed up by this table as a history table. + * Temporal Tables represent a concept of a table that changes over time and for which + * Flink keeps track of those changes. {@link TemporalTableFunction} provides a way how to + * access those data. + * + * <p>For more information please check Flink's documentation on Temporal Tables. + * + * <p>Currently {@link TemporalTableFunction}s are only supported in streaming. + * + * @param timeAttribute Must points to a time indicator. Provides a way to compare which + * records are a newer or older version. + * @param primaryKey Defines the primary key. With primary key it is possible to update + * a row or to delete it. + * @return {@link TemporalTableFunction} which is an instance of {@link TableFunction}. + * It takes one single argument, the {@code timeAttribute}, for which it returns + * matching version of the {@link Table}, from which {@link TemporalTableFunction} + * was created. + */ + TemporalTableFunction createTemporalTableFunction(Expression timeAttribute, Expression primaryKey); + + /** + * Renames the fields of the expression result. Use this to disambiguate fields before + * joining to operations. + * + * <p>Example: + * + * <pre> + * {@code + * tab.as("a, b") + * } + * </pre> + */ + Table as(String fields); + + /** + * Renames the fields of the expression result. Use this to disambiguate fields before + * joining to operations. + * + * <p>Example: + * + * <pre> + * {@code + * tab.as('a, 'b) + * } + * </pre> + */ + Table as(Expression... fields); + + /** + * Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE + * clause. + * + * <p>Example: + * + * <pre> + * {@code + * tab.filter("name = 'Fred'") + * } + * </pre> + */ + Table filter(String predicate); + + /** + * Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE + * clause. + * + * <p>Example: + * + * <pre> + * {@code + * tab.filter('name === "Fred") + * } + * </pre> + */ + Table filter(Expression predicate); + + /** + * Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE + * clause. + * + * <p>Example: + * + * <pre> + * {@code + * tab.where("name = 'Fred'") + * } + * </pre> + */ + Table where(String predicate); + + /** + * Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE + * clause. + * + * <p>Example: + * + * <pre> + * {@code + * tab.where('name === "Fred") + * } + * </pre> + */ + Table where(Expression predicate); + + /** + * Groups the elements on some grouping keys. Use this before a selection with aggregations + * to perform the aggregation on a per-group basis. Similar to a SQL GROUP BY statement. + * + * <p>Example: + * + * <pre> + * {@code + * tab.groupBy("key").select("key, value.avg") + * } + * </pre> + */ + GroupedTable groupBy(String fields); + + /** + * Groups the elements on some grouping keys. Use this before a selection with aggregations + * to perform the aggregation on a per-group basis. Similar to a SQL GROUP BY statement. + * + * <p>Example: + * + * <pre> + * {@code + * tab.groupBy('key).select('key, 'value.avg) + * } + * </pre> + */ + GroupedTable groupBy(Expression... fields); + + /** + * Removes duplicate values and returns only distinct (different) values. + * + * <p>Example: + * + * <pre> + * {@code + * tab.select("key, value").distinct() + * } + * </pre> + */ + Table distinct(); + + /** + * Joins two {@link Table}s. Similar to an SQL join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. You can use + * where and select clauses after a join to further specify the behaviour of the join. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} . + * + * <p>Example: + * + * <pre> + * {@code + * left.join(right).where('a === 'b && 'c > 3).select('a, 'b, 'd) + * } + * </pre> + */ + Table join(Table right); + + /** + * Joins two {@link Table}s. Similar to an SQL join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} . + * + * <p>Example: + * + * <pre> + * {@code + * left.join(right, "a = b") + * } + * </pre> + */ + Table join(Table right, String joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} . + * + * <p>Example: + * + * <pre> + * {@code + * left.join(right, 'a === 'b).select('a, 'b, 'd) + * } + * </pre> + */ + Table join(Table right, Expression joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL left outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.leftOuterJoin(right).select('a, 'b, 'd) + * } + * </pre> + */ + Table leftOuterJoin(Table right); + + /** + * Joins two {@link Table}s. Similar to an SQL left outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.leftOuterJoin(right, "a = b").select("a, b, d") + * } + * </pre> + */ + Table leftOuterJoin(Table right, String joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL left outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.leftOuterJoin(right, 'a === 'b).select('a, 'b, 'd) + * } + * </pre> + */ + Table leftOuterJoin(Table right, Expression joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL right outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.rightOuterJoin(right, "a = b").select('a, 'b, 'd) + * } + * </pre> + */ + Table rightOuterJoin(Table right, String joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL right outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.rightOuterJoin(right, 'a === 'b).select('a, 'b, 'd) + * } + * </pre> + */ + Table rightOuterJoin(Table right, Expression joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL full outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.fullOuterJoin(right, "a = b").select('a, 'b, 'd) + * } + * </pre> + */ + Table fullOuterJoin(Table right, String joinPredicate); + + /** + * Joins two {@link Table}s. Similar to an SQL full outer join. The fields of the two joined + * operations must not overlap, use {@code as} to rename fields if necessary. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment} and its + * {@code TableConfig} must have null check enabled (default). + * + * <p>Example: + * + * <pre> + * {@code + * left.fullOuterJoin(right, 'a === 'b).select('a, 'b, 'd) + * } + * </pre> + */ + Table fullOuterJoin(Table right, Expression joinPredicate); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL inner join with ON TRUE predicate but works with a table function. Each row of the + * table is joined with all rows produced by the table function. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction<String> { + * public void eval(String str) { + * str.split("#").forEach(this::collect); + * } + * } + * + * TableFunction<String> split = new MySplitUDTF(); + * tableEnv.registerFunction("split", split); + * table.joinLateral("split(c) as (s)").select("a, b, c, s"); + * } + * </pre> + */ + Table joinLateral(String tableFunctionCall); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL inner join with ON TRUE predicate but works with a table function. Each row of the + * table is joined with all rows produced by the table function. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction[String] { + * def eval(str: String): Unit = { + * str.split("#").foreach(collect) + * } + * } + * + * val split = new MySplitUDTF() + * table.joinLateral(split('c) as ('s)).select('a, 'b, 'c, 's) + * } + * </pre> + */ + Table joinLateral(Expression tableFunctionCall); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL inner join with ON TRUE predicate but works with a table function. Each row of the + * table is joined with all rows produced by the table function. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction<String> { + * public void eval(String str) { + * str.split("#").forEach(this::collect); + * } + * } + * + * TableFunction<String> split = new MySplitUDTF(); + * tableEnv.registerFunction("split", split); + * table.joinLateral("split(c) as (s)", "a = s").select("a, b, c, s"); + * } + * </pre> + */ + Table joinLateral(String tableFunctionCall, String joinPredicate); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL inner join with ON TRUE predicate but works with a table function. Each row of the + * table is joined with all rows produced by the table function. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction[String] { + * def eval(str: String): Unit = { + * str.split("#").foreach(collect) + * } + * } + * + * val split = new MySplitUDTF() + * table.joinLateral(split('c) as ('s), 'a === 's).select('a, 'b, 'c, 's) + * } + * </pre> + */ + Table joinLateral(Expression tableFunctionCall, Expression joinPredicate); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL left outer join with ON TRUE predicate but works with a table function. Each row of + * the table is joined with all rows produced by the table function. If the table function does + * not produce any row, the outer row is padded with nulls. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction<String> { + * public void eval(String str) { + * str.split("#").forEach(this::collect); + * } + * } + * + * TableFunction<String> split = new MySplitUDTF(); + * tableEnv.registerFunction("split", split); + * table.leftOuterJoinLateral("split(c) as (s)").select("a, b, c, s"); + * } + * </pre> + */ + Table leftOuterJoinLateral(String tableFunctionCall); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL left outer join with ON TRUE predicate but works with a table function. Each row of + * the table is joined with all rows produced by the table function. If the table function does + * not produce any row, the outer row is padded with nulls. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction[String] { + * def eval(str: String): Unit = { + * str.split("#").foreach(collect) + * } + * } + * + * val split = new MySplitUDTF() + * table.leftOuterJoinLateral(split('c) as ('s)).select('a, 'b, 'c, 's) + * } + * </pre> + */ + Table leftOuterJoinLateral(Expression tableFunctionCall); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL left outer join with ON TRUE predicate but works with a table function. Each row of + * the table is joined with all rows produced by the table function. If the table function does + * not produce any row, the outer row is padded with nulls. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction<String> { + * public void eval(String str) { + * str.split("#").forEach(this::collect); + * } + * } + * + * TableFunction<String> split = new MySplitUDTF(); + * tableEnv.registerFunction("split", split); + * table.leftOuterJoinLateral("split(c) as (s)", "a = s").select("a, b, c, s"); + * } + * </pre> + */ + Table leftOuterJoinLateral(String tableFunctionCall, String joinPredicate); + + /** + * Joins this {@link Table} with an user-defined {@link TableFunction}. This join is similar to + * a SQL left outer join with ON TRUE predicate but works with a table function. Each row of + * the table is joined with all rows produced by the table function. If the table function does + * not produce any row, the outer row is padded with nulls. + * + * <p>Example: + * + * <pre> + * {@code + * class MySplitUDTF extends TableFunction[String] { + * def eval(str: String): Unit = { + * str.split("#").foreach(collect) + * } + * } + * + * val split = new MySplitUDTF() + * table.leftOuterJoinLateral(split('c) as ('s), 'a === 's).select('a, 'b, 'c, 's) + * } + * </pre> + */ + Table leftOuterJoinLateral(Expression tableFunctionCall, Expression joinPredicate); + + /** + * Minus of two {@link Table}s with duplicate records removed. + * Similar to a SQL EXCEPT clause. Minus returns records from the left table that do not + * exist in the right table. Duplicate records in the left table are returned + * exactly once, i.e., duplicates are removed. Both tables must have identical field types. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.minus(right) + * } + * </pre> + */ + Table minus(Table right); + + /** + * Minus of two {@link Table}s. Similar to an SQL EXCEPT ALL. + * Similar to a SQL EXCEPT ALL clause. MinusAll returns the records that do not exist in + * the right table. A record that is present n times in the left table and m times + * in the right table is returned (n - m) times, i.e., as many duplicates as are present + * in the right table are removed. Both tables must have identical field types. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.minusAll(right) + * } + * </pre> + */ + Table minusAll(Table right); + + /** + * Unions two {@link Table}s with duplicate records removed. + * Similar to an SQL UNION. The fields of the two union operations must fully overlap. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.union(right) + * } + * </pre> + */ + Table union(Table right); + + /** + * Unions two {@link Table}s. Similar to an SQL UNION ALL. The fields of the two union + * operations must fully overlap. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.unionAll(right) + * } + * </pre> + */ + Table unionAll(Table right); + + /** + * Intersects two {@link Table}s with duplicate records removed. Intersect returns records that + * exist in both tables. If a record is present in one or both tables more than once, it is + * returned just once, i.e., the resulting table has no duplicate records. Similar to an + * SQL INTERSECT. The fields of the two intersect operations must fully overlap. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.intersect(right) + * } + * </pre> + */ + Table intersect(Table right); + + /** + * Intersects two {@link Table}s. IntersectAll returns records that exist in both tables. + * If a record is present in both tables more than once, it is returned as many times as it + * is present in both tables, i.e., the resulting table might have duplicate records. Similar + * to an SQL INTERSECT ALL. The fields of the two intersect operations must fully overlap. + * + * <p>Note: Both tables must be bound to the same {@code TableEnvironment}. + * + * <p>Example: + * + * <pre> + * {@code + * left.intersectAll(right) + * } + * </pre> + */ + Table intersectAll(Table right); + + /** + * Sorts the given {@link Table}. Similar to SQL ORDER BY. + * The resulting Table is sorted globally sorted across all parallel partitions. + * + * <p>Example: + * + * <pre> + * {@code + * tab.orderBy("name.desc") + * } + * </pre> + */ + Table orderBy(String fields); + + /** + * Sorts the given {@link Table}. Similar to SQL ORDER BY. + * The resulting Table is globally sorted across all parallel partitions. + * + * <p>Example: + * + * <pre> + * {@code + * tab.orderBy('name.desc) + * } + * </pre> + */ + Table orderBy(Expression... fields); + + /** + * Limits a sorted result from an offset position. + * Similar to a SQL OFFSET clause. Offset is technically part of the Order By operator and + * thus must be preceded by it. + * + * {@link Table#offset(Integer offset)} can be combined with a subsequent + * {@link Table#fetch(Integer fetch)} call to return n rows after skipping the first o rows. + * + * <pre> + * {@code + * // skips the first 3 rows and returns all following rows. + * tab.orderBy('name.desc).offset(3) + * // skips the first 10 rows and returns the next 5 rows. + * tab.orderBy('name.desc).offset(10).fetch(5) + * } + * </pre> + * + * @param offset number of records to skip + */ + Table offset(Integer offset); + + /** + * Limits a sorted result to the first n rows. + * Similar to a SQL FETCH clause. Fetch is technically part of the Order By operator and + * thus must be preceded by it. + * + * {@link Table#fetch(Integer fetch)} can be combined with a preceding + * {@link Table#offset(Integer offset)} call to return n rows after skipping the first o rows. + * + * <pre> + * {@code + * // returns the first 3 records. + * tab.orderBy('name.desc).fetch(3) + * // skips the first 10 rows and returns the next 5 rows. + * tab.orderBy('name.desc).offset(10).fetch(5) + * } + * </pre> + * + * @param fetch the number of records to return. Fetch must be >= 0. + */ + Table fetch(Integer fetch); + + /** + * Writes the {@link Table} to a {@link TableSink}. A {@link TableSink} defines an external + * storage location. + * + * <p>A batch {@link Table} can only be written to a + * {@code org.apache.flink.table.sinks.BatchTableSink}, a streaming {@link Table} requires a + * {@code org.apache.flink.table.sinks.AppendStreamTableSink}, a + * {@code org.apache.flink.table.sinks.RetractStreamTableSink}, or an + * {@code org.apache.flink.table.sinks.UpsertStreamTableSink}. + * + * @param sink The {@link TableSink} to which the {@link Table} is written. + * @tparam T The data type that the {@link TableSink} expects. + * + * @deprecated Will be removed in a future release. Please register the TableSink and use + * {@link Table#insertInto(String tableName)}. + */ + @Deprecated + <T> void writeToSink(TableSink<T> sink); + + /** + * Writes the {@link Table} to a {@link TableSink}. A {@link TableSink} defines an external + * storage location. + * + * <p>A batch {@link Table} can only be written to a + * {@code org.apache.flink.table.sinks.BatchTableSink}, a streaming {@link Table} requires a + * {@code org.apache.flink.table.sinks.AppendStreamTableSink}, a + * {@code org.apache.flink.table.sinks.RetractStreamTableSink}, or an + * {@code org.apache.flink.table.sinks.UpsertStreamTableSink}. + * + * @param sink The {@link TableSink} to which the {@link Table} is written. + * @param conf The configuration for the query that writes to the sink. + * @tparam T The data type that the {@link TableSink} expects. + * + * @deprecated Will be removed in a future release. Please register the TableSink and use + * {@link Table#insertInto(String tableName, QueryConfig conf)}. + */ + @Deprecated + <T> void writeToSink(TableSink<T> sink, QueryConfig conf); Review comment: Let's drop it. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
