[
https://issues.apache.org/jira/browse/DRILL-7706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17086985#comment-17086985
]
ASF GitHub Bot commented on DRILL-7706:
---------------------------------------
arina-ielchiieva commented on pull request #2060: DRILL-7706: Implement Drill
RDBMS Metastore for Tables component
URL: https://github.com/apache/drill/pull/2060#discussion_r410896022
##########
File path:
metastore/rdbms-metastore/src/main/java/org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.java
##########
@@ -0,0 +1,606 @@
+/*
+ * 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.drill.metastore.rdbms.components.tables;
+
+import org.apache.drill.metastore.MetastoreColumn;
+import org.apache.drill.metastore.components.tables.TableMetadataUnit;
+import org.apache.drill.metastore.rdbms.transform.AbstractMetadataMapper;
+import org.apache.drill.metastore.rdbms.transform.RdbmsFilterExpressionVisitor;
+import org.apache.drill.metastore.rdbms.util.ConverterUtil;
+import org.apache.drill.shaded.guava.com.google.common.collect.ImmutableMap;
+import org.jooq.Condition;
+import org.jooq.Field;
+import org.jooq.Record;
+import org.jooq.Table;
+import org.jooq.generated.Tables;
+import org.jooq.generated.tables.records.FilesRecord;
+import org.jooq.generated.tables.records.PartitionsRecord;
+import org.jooq.generated.tables.records.RowGroupsRecord;
+import org.jooq.generated.tables.records.SegmentsRecord;
+import org.jooq.generated.tables.records.TablesRecord;
+import org.jooq.impl.DSL;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+/**
+ * Abstract implementation of {@link AbstractMetadataMapper} for RDBMS
Metastore tables component.
+ * Contains common code for specific RDBMS Metastore tables component tables.
+ *
+ * @param <R> RDBMS table record type
+ */
+public abstract class TablesMetadataMapper<R extends Record> extends
AbstractMetadataMapper<TableMetadataUnit, R> {
+
+ protected static final Function<TableMetadataUnit, List<String>>
TABLE_PARTITION_KEY = unit ->
+ Arrays.asList(unit.storagePlugin(), unit.workspace(), unit.tableName());
+
+ protected static final Function<TableMetadataUnit, List<String>>
COMPONENT_PARTITION_KEY = unit ->
+ Arrays.asList(unit.storagePlugin(), unit.workspace(), unit.tableName(),
unit.metadataKey());
+
+ @Override
+ public TableMetadataUnit emptyUnit() {
+ return TableMetadataUnit.EMPTY_UNIT;
+ }
+
+ @Override
+ public List<Condition> toDeleteConditions(List<TableMetadataUnit> units) {
+ Set<List<String>> partitionValues = units.stream()
+ .collect(Collectors.groupingBy(partitionKey(), Collectors.toList()))
+ .keySet();
+
+ return partitionValues.stream()
+ .map(values -> DSL.and(toConditions(values)))
+ .collect(Collectors.toList());
+ }
+
+ /**
+ * @return function to determine partition key for specific table
+ */
+ protected abstract Function<TableMetadataUnit, List<String>> partitionKey();
+
+ /**
+ * Creates JOOQ conditions based on given list of partition values.
+ * Matching is order based.
+ *
+ * @param values partition values
+ * @return list of JOOQ conditions
+ */
+ protected abstract List<Condition> toConditions(List<String> values);
+
+ /**
+ * {@link TablesMetadataMapper} implementation for {@link Tables#TABLES}
table.
+ */
+ public static class TableMapper extends TablesMetadataMapper<TablesRecord> {
+
+ private static final TableMapper INSTANCE = new TableMapper();
+
+ private static final Map<MetastoreColumn, Field<?>> COLUMNS_MAP =
ImmutableMap.<MetastoreColumn, Field<?>>builder()
+ .put(MetastoreColumn.STORAGE_PLUGIN, Tables.TABLES.STORAGE_PLUGIN)
+ .put(MetastoreColumn.WORKSPACE, Tables.TABLES.WORKSPACE)
+ .put(MetastoreColumn.TABLE_NAME, Tables.TABLES.TABLE_NAME)
+ .put(MetastoreColumn.OWNER, Tables.TABLES.OWNER)
+ .put(MetastoreColumn.TABLE_TYPE, Tables.TABLES.TABLE_TYPE)
+ .put(MetastoreColumn.METADATA_KEY, Tables.TABLES.METADATA_KEY)
+ .put(MetastoreColumn.METADATA_TYPE, Tables.TABLES.METADATA_TYPE)
+ .put(MetastoreColumn.LOCATION, Tables.TABLES.LOCATION)
+ .put(MetastoreColumn.INTERESTING_COLUMNS,
Tables.TABLES.INTERESTING_COLUMNS)
+ .put(MetastoreColumn.SCHEMA, Tables.TABLES.SCHEMA)
+ .put(MetastoreColumn.COLUMNS_STATISTICS, Tables.TABLES.COLUMN_STATISTICS)
+ .put(MetastoreColumn.METADATA_STATISTICS,
Tables.TABLES.METADATA_STATISTICS)
+ .put(MetastoreColumn.PARTITION_KEYS, Tables.TABLES.PARTITION_KEYS)
+ .put(MetastoreColumn.LAST_MODIFIED_TIME,
Tables.TABLES.LAST_MODIFIED_TIME)
+ .put(MetastoreColumn.ADDITIONAL_METADATA,
Tables.TABLES.ADDITIONAL_METADATA)
+ .build();
+
+ private static final RdbmsFilterExpressionVisitor FILTER_VISITOR = new
RdbmsFilterExpressionVisitor(COLUMNS_MAP);
+
+ public static TableMapper get() {
+ return INSTANCE;
+ }
+
+ @Override
+ public Table<TablesRecord> table() {
+ return Tables.TABLES;
+ }
+
+ @Override
+ public TableMetadataUnit toUnit(Record record) {
+ TablesRecord tablesRecord = (TablesRecord) record;
+ return TableMetadataUnit.builder()
+ .storagePlugin(tablesRecord.getStoragePlugin())
+ .workspace(tablesRecord.getWorkspace())
+ .tableName(tablesRecord.getTableName())
+ .owner(tablesRecord.getOwner())
+ .tableType(tablesRecord.getTableType())
+ .metadataKey(tablesRecord.getMetadataKey())
+ .metadataType(tablesRecord.getMetadataType())
+ .location(tablesRecord.getLocation())
+
.interestingColumns(ConverterUtil.convertToListString(tablesRecord.getInterestingColumns()))
+ .schema(tablesRecord.getSchema())
+
.columnsStatistics(ConverterUtil.convertToMapStringString(tablesRecord.getColumnStatistics()))
+
.metadataStatistics(ConverterUtil.convertToListString(tablesRecord.getMetadataStatistics()))
+
.partitionKeys(ConverterUtil.convertToMapStringString(tablesRecord.getPartitionKeys()))
+ .lastModifiedTime(tablesRecord.getLastModifiedTime())
+ .additionalMetadata(tablesRecord.getAdditionalMetadata())
+ .build();
+ }
+
+ @Override
+ public TablesRecord toRecord(TableMetadataUnit unit) {
+ TablesRecord record = new TablesRecord();
+ record.setStoragePlugin(unit.storagePlugin());
+ record.setWorkspace(unit.workspace());
+ record.setTableName(unit.tableName());
+ record.setOwner(unit.owner());
+ record.setTableType(unit.tableType());
+ record.setMetadataKey(unit.metadataKey());
+ record.setMetadataType(unit.metadataType());
+ record.setLocation(unit.location());
+
record.setInterestingColumns(ConverterUtil.convertToString(unit.interestingColumns()));
+ record.setSchema(unit.schema());
+
record.setColumnStatistics(ConverterUtil.convertToString(unit.columnsStatistics()));
+
record.setMetadataStatistics(ConverterUtil.convertToString(unit.metadataStatistics()));
+
record.setPartitionKeys(ConverterUtil.convertToString(unit.partitionKeys()));
+ record.setLastModifiedTime(unit.lastModifiedTime());
+ record.setAdditionalMetadata(unit.additionalMetadata());
+ return record;
+ }
+
+ @Override
+ protected Map<MetastoreColumn, Field<?>> fieldMapper() {
+ return COLUMNS_MAP;
+ }
+
+ @Override
+ protected RdbmsFilterExpressionVisitor filterVisitor() {
+ return FILTER_VISITOR;
+ }
+
+ @Override
+ protected Function<TableMetadataUnit, List<String>> partitionKey() {
+ return TABLE_PARTITION_KEY;
+ }
+
+ @Override
+ protected List<Condition> toConditions(List<String> values) {
+ assert values.size() == 3;
+ return Arrays.asList(
+ Tables.TABLES.STORAGE_PLUGIN.eq(values.get(0)),
+ Tables.TABLES.WORKSPACE.eq(values.get(1)),
+ Tables.TABLES.TABLE_NAME.eq(values.get(2))
+ );
+ }
+ }
+
+ /**
+ * {@link TablesMetadataMapper} implementation for {@link Tables#SEGMENTS}
table.
+ */
+ public static class SegmentMapper extends
TablesMetadataMapper<SegmentsRecord> {
+
+ private static final SegmentMapper INSTANCE = new SegmentMapper();
+
+ private static final Map<MetastoreColumn, Field<?>> COLUMNS_MAP =
ImmutableMap.<MetastoreColumn, Field<?>>builder()
+ .put(MetastoreColumn.STORAGE_PLUGIN, Tables.SEGMENTS.STORAGE_PLUGIN)
+ .put(MetastoreColumn.WORKSPACE, Tables.SEGMENTS.WORKSPACE)
+ .put(MetastoreColumn.TABLE_NAME, Tables.SEGMENTS.TABLE_NAME)
+ .put(MetastoreColumn.METADATA_KEY, Tables.SEGMENTS.METADATA_KEY)
+ .put(MetastoreColumn.METADATA_IDENTIFIER,
Tables.SEGMENTS.METADATA_IDENTIFIER)
+ .put(MetastoreColumn.METADATA_TYPE, Tables.SEGMENTS.METADATA_TYPE)
+ .put(MetastoreColumn.LOCATION, Tables.SEGMENTS.LOCATION)
+ .put(MetastoreColumn.SCHEMA, Tables.SEGMENTS.SCHEMA)
+ .put(MetastoreColumn.COLUMNS_STATISTICS,
Tables.SEGMENTS.COLUMN_STATISTICS)
+ .put(MetastoreColumn.METADATA_STATISTICS,
Tables.SEGMENTS.METADATA_STATISTICS)
+ .put(MetastoreColumn.COLUMN, Tables.SEGMENTS.COLUMN)
+ .put(MetastoreColumn.LOCATIONS, Tables.SEGMENTS.LOCATIONS)
+ .put(MetastoreColumn.PARTITION_VALUES, Tables.SEGMENTS.PARTITION_VALUES)
+ .put(MetastoreColumn.PATH, Tables.SEGMENTS.PATH)
+ .put(MetastoreColumn.LAST_MODIFIED_TIME,
Tables.SEGMENTS.LAST_MODIFIED_TIME)
Review comment:
No. We update all data.
----------------------------------------------------------------
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]
> Drill RDBMS Metastore
> ---------------------
>
> Key: DRILL-7706
> URL: https://issues.apache.org/jira/browse/DRILL-7706
> Project: Apache Drill
> Issue Type: New Feature
> Affects Versions: 1.17.0
> Reporter: Arina Ielchiieva
> Assignee: Arina Ielchiieva
> Priority: Major
> Fix For: 1.18.0
>
>
> Currently Drill has only one Metastore implementation based on Iceberg
> tables. Iceberg tables are file based storage that supports concurrent writes
> / reads but required to be placed on distributed file system.
> This Jira aims to implement Drill RDBMS Metastore which will store Drill
> Metastore metadata in the database of the user's choice. Currently,
> PostgreSQL and MySQL databases are supported, others might work as well but
> no testing was done. Also out of box for demonstration / testing purposes
> Drill will setup SQLite file based embedded database but this is only
> applicable for Drill in embedded mode.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
