[Enhancement] Support iceberg delete plan #67259
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| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // Licensed 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 | ||
| // | ||
| // https://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. | ||
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| package com.starrocks.planner; | ||
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| import com.starrocks.catalog.IcebergTable;; | ||
| import com.starrocks.connector.exception.StarRocksConnectorException; | ||
| import com.starrocks.connector.iceberg.IcebergUtil; | ||
| import com.starrocks.credential.CloudConfiguration; | ||
| import com.starrocks.qe.SessionVariable; | ||
| import com.starrocks.thrift.TCompressionType; | ||
| import com.starrocks.thrift.TDataSink; | ||
| import com.starrocks.thrift.TDataSinkType; | ||
| import com.starrocks.thrift.TExplainLevel; | ||
| import com.starrocks.thrift.TIcebergTableSink; | ||
| import com.starrocks.type.IntegerType; | ||
| import com.starrocks.type.VarcharType; | ||
| import org.apache.iceberg.Table; | ||
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| import static com.starrocks.sql.ast.OutFileClause.PARQUET_COMPRESSION_TYPE_MAP; | ||
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| /** | ||
| * IcebergDeleteSink is used to support delete operations to Iceberg tables. | ||
| * It supports write position delete files | ||
| * <p> | ||
| * Required columns: | ||
| * - _file (STRING): Path of the data file | ||
| * - _pos (BIGINT): Row position within the file | ||
| */ | ||
| public class IcebergDeleteSink extends DataSink { | ||
| protected final TupleDescriptor desc; | ||
| private IcebergTable icebergTable; | ||
| private final long targetTableId; | ||
| private final String tableLocation; | ||
| private final String dataLocation; | ||
| private final String compressionType; | ||
| private final long targetMaxFileSize; | ||
| private final String tableIdentifier; | ||
| private CloudConfiguration cloudConfiguration; | ||
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| /** | ||
| * Constructor for IcebergDeleteSink | ||
| * | ||
| * @param icebergTable The target Iceberg table | ||
| * @param desc Tuple descriptor containing operation columns | ||
| * @param sessionVariable Session variables for configuration | ||
| */ | ||
| public IcebergDeleteSink(IcebergTable icebergTable, TupleDescriptor desc, | ||
| SessionVariable sessionVariable) { | ||
| this.icebergTable = icebergTable; | ||
| Table nativeTable = icebergTable.getNativeTable(); | ||
| this.desc = desc; | ||
| this.tableLocation = nativeTable.location(); | ||
| this.dataLocation = IcebergUtil.tableDataLocation(nativeTable); | ||
| this.targetTableId = icebergTable.getId(); | ||
| this.tableIdentifier = icebergTable.getUUID(); | ||
| this.compressionType = sessionVariable.getConnectorSinkCompressionCodec(); | ||
| this.targetMaxFileSize = sessionVariable.getConnectorSinkTargetMaxFileSize() > 0 ? | ||
| sessionVariable.getConnectorSinkTargetMaxFileSize() : 1024L * 1024 * 1024; | ||
| } | ||
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| public void init() { | ||
| String catalogName = icebergTable.getCatalogName(); | ||
| this.cloudConfiguration = IcebergUtil.getVendedCloudConfiguration(catalogName, icebergTable); | ||
| // Validate tuple descriptor contains required columns | ||
| validateDeleteTuple(desc); | ||
| } | ||
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| /** | ||
| * Validate that the tuple descriptor contains required columns | ||
| * | ||
| * @param desc The tuple descriptor to validate | ||
| */ | ||
| private void validateDeleteTuple(TupleDescriptor desc) { | ||
| boolean hasFilePathColumn = false; | ||
| boolean hasPosColumn = false; | ||
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| for (SlotDescriptor slot : desc.getSlots()) { | ||
| if (slot.getColumn() != null) { | ||
| String colName = slot.getColumn().getName(); | ||
| if (IcebergTable.FILE_PATH.equals(colName)) { | ||
| hasFilePathColumn = true; | ||
| if (!slot.getType().equals(VarcharType.VARCHAR)) { | ||
| throw new StarRocksConnectorException("_file column must be type of VARCHAR"); | ||
| } | ||
| } else if (IcebergTable.ROW_POSITION.equals(colName)) { | ||
| hasPosColumn = true; | ||
| if (!slot.getType().equals(IntegerType.BIGINT)) { | ||
| throw new StarRocksConnectorException("_pos column must be type of BIGINT"); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| if (!hasFilePathColumn || !hasPosColumn) { | ||
| throw new StarRocksConnectorException("IcebergDeleteSink requires _file and _pos columns in tuple descriptor"); | ||
| } | ||
| } | ||
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| @Override | ||
| public String getExplainString(String prefix, TExplainLevel explainLevel) { | ||
| StringBuilder strBuilder = new StringBuilder(); | ||
| strBuilder.append(prefix).append("ICEBERG DELETE SINK"); | ||
| strBuilder.append("\n"); | ||
| strBuilder.append(prefix).append(" TABLE: ").append(tableIdentifier).append("\n"); | ||
| strBuilder.append(prefix).append(" LOCATION: ").append(tableLocation).append("\n"); | ||
| strBuilder.append(prefix).append(" TUPLE ID: ").append(desc.getId()).append("\n"); | ||
| return strBuilder.toString(); | ||
| } | ||
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| @Override | ||
| protected TDataSink toThrift() { | ||
| TDataSink tDataSink = new TDataSink(TDataSinkType.ICEBERG_DELETE_SINK); | ||
| TIcebergTableSink tIcebergTableSink = new TIcebergTableSink(); | ||
| tIcebergTableSink.setTarget_table_id(targetTableId); | ||
| tIcebergTableSink.setTuple_id(desc.getId().asInt()); | ||
| tIcebergTableSink.setLocation(tableLocation); | ||
| // For delete sink, we set both data and delete locations | ||
| tIcebergTableSink.setData_location(dataLocation); | ||
| tIcebergTableSink.setFile_format("parquet"); // Delete files are always parquet | ||
| tIcebergTableSink.setIs_static_partition_sink(false); | ||
| TCompressionType compression = PARQUET_COMPRESSION_TYPE_MAP.get(compressionType); | ||
| tIcebergTableSink.setCompression_type(compression); | ||
| tIcebergTableSink.setTarget_max_file_size(targetMaxFileSize); | ||
| com.starrocks.thrift.TCloudConfiguration tCloudConfiguration = new com.starrocks.thrift.TCloudConfiguration(); | ||
| cloudConfiguration.toThrift(tCloudConfiguration); | ||
| tIcebergTableSink.setCloud_configuration(tCloudConfiguration); | ||
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| tDataSink.setIceberg_table_sink(tIcebergTableSink); | ||
| return tDataSink; | ||
| } | ||
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| @Override | ||
| public PlanNodeId getExchNodeId() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public DataPartition getOutputPartition() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public boolean canUseRuntimeAdaptiveDop() { | ||
| return true; | ||
| } | ||
| } | ||
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Actually, you could make DeleteSink as a separate PR and then follow it with a delete plan PR.