-
Notifications
You must be signed in to change notification settings - Fork 169
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
[FLINK-30702] Add Elasticsearch dialect #67
Closed
Closed
Changes from all commits
Commits
Show all changes
4 commits
Select commit
Hold shift + click to select a range
File filter
Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
111 changes: 111 additions & 0 deletions
111
...org/apache/flink/connector/jdbc/databases/elasticsearch/dialect/ElasticsearchDialect.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| * 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.connector.jdbc.databases.elasticsearch.dialect; | ||
|
|
||
| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.connector.jdbc.converter.JdbcRowConverter; | ||
| import org.apache.flink.connector.jdbc.dialect.AbstractDialect; | ||
| import org.apache.flink.table.types.logical.LogicalTypeRoot; | ||
| import org.apache.flink.table.types.logical.RowType; | ||
|
|
||
| import java.util.EnumSet; | ||
| import java.util.Optional; | ||
| import java.util.Set; | ||
|
|
||
| /** JDBC dialect for Elastic. */ | ||
| @Internal | ||
| public class ElasticsearchDialect extends AbstractDialect { | ||
|
|
||
| private static final long serialVersionUID = 1L; | ||
|
|
||
| // Define MAX/MIN precision of TIMESTAMP type according to Elastic docs: | ||
| // https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-data-types.html | ||
| private static final int MIN_TIMESTAMP_PRECISION = 0; | ||
| private static final int MAX_TIMESTAMP_PRECISION = 9; | ||
|
|
||
| @Override | ||
| public String dialectName() { | ||
| return "Elasticsearch"; | ||
| } | ||
|
|
||
| @Override | ||
| public Optional<String> defaultDriverName() { | ||
| return Optional.of("org.elasticsearch.xpack.sql.jdbc.EsDriver"); | ||
| } | ||
|
|
||
| @Override | ||
| public Set<LogicalTypeRoot> supportedTypes() { | ||
| // The list of types supported by Elastic SQL. | ||
| // https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-data-types.html | ||
| return EnumSet.of( | ||
| LogicalTypeRoot.BIGINT, | ||
| LogicalTypeRoot.BOOLEAN, | ||
| LogicalTypeRoot.DATE, | ||
| LogicalTypeRoot.DOUBLE, | ||
| LogicalTypeRoot.INTEGER, | ||
| LogicalTypeRoot.FLOAT, | ||
| LogicalTypeRoot.SMALLINT, | ||
| LogicalTypeRoot.TINYINT, | ||
| LogicalTypeRoot.TIMESTAMP_WITHOUT_TIME_ZONE, | ||
| LogicalTypeRoot.VARBINARY, | ||
| LogicalTypeRoot.VARCHAR); | ||
| } | ||
|
|
||
| @Override | ||
| public Optional<Range> timestampPrecisionRange() { | ||
| return Optional.of(Range.of(MIN_TIMESTAMP_PRECISION, MAX_TIMESTAMP_PRECISION)); | ||
| } | ||
|
|
||
| @Override | ||
| public JdbcRowConverter getRowConverter(RowType rowType) { | ||
| return new ElasticsearchRowConverter(rowType); | ||
| } | ||
|
|
||
| @Override | ||
| public String getLimitClause(long limit) { | ||
| return "LIMIT " + limit; | ||
| } | ||
|
|
||
| @Override | ||
| public String quoteIdentifier(String identifier) { | ||
| return '"' + identifier + '"'; | ||
| } | ||
|
|
||
| @Override | ||
| public Optional<String> getUpsertStatement( | ||
| String tableName, String[] fieldNames, String[] uniqueKeyFields) { | ||
| throw new UnsupportedOperationException("Upsert is not supported."); | ||
| } | ||
|
|
||
| @Override | ||
| public String getInsertIntoStatement(String tableName, String[] fieldNames) { | ||
| throw new UnsupportedOperationException("Insert into is not supported."); | ||
| } | ||
|
|
||
| @Override | ||
| public String getUpdateStatement( | ||
| String tableName, String[] fieldNames, String[] conditionFields) { | ||
| throw new UnsupportedOperationException("Update is not supported."); | ||
| } | ||
|
|
||
| @Override | ||
| public String getDeleteStatement(String tableName, String[] conditionFields) { | ||
| throw new UnsupportedOperationException("Delete is not supported."); | ||
| } | ||
| } | ||
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
if read is the only option for ES, this should be on documentation
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Do you mean
docs/content/docs/connectors/table/jdbc.md? Which section is the most suitable one?