-
Notifications
You must be signed in to change notification settings - Fork 229
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
TEIID-5528 adding array literal insert and update support to pg
- Loading branch information
Showing
9 changed files
with
281 additions
and
56 deletions.
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
125 changes: 125 additions & 0 deletions
125
...-jdbc/src/main/java/org/teiid/translator/jdbc/postgresql/PostgreSQLConversionVisitor.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 +1,125 @@ | ||
| /* | ||
| * Copyright Red Hat, Inc. and/or its affiliates | ||
| * and other contributors as indicated by the @author tags and | ||
| * the COPYRIGHT.txt file distributed with this work. | ||
| * | ||
| * 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 | ||
| * | ||
| * 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.teiid.translator.jdbc.postgresql; | ||
|
|
||
| import org.teiid.language.Array; | ||
| import org.teiid.language.ColumnReference; | ||
| import org.teiid.language.DerivedColumn; | ||
| import org.teiid.language.Expression; | ||
| import org.teiid.language.Literal; | ||
| import org.teiid.language.SQLConstants; | ||
| import org.teiid.language.With; | ||
| import org.teiid.language.WithItem; | ||
| import org.teiid.translator.TypeFacility; | ||
| import org.teiid.translator.jdbc.ConvertModifier; | ||
| import org.teiid.translator.jdbc.SQLConversionVisitor; | ||
|
|
||
| public class PostgreSQLConversionVisitor | ||
| extends SQLConversionVisitor { | ||
|
|
||
| private PostgreSQLExecutionFactory postgreSQLExecutionFactory; | ||
|
|
||
| public PostgreSQLConversionVisitor(PostgreSQLExecutionFactory ef) { | ||
| super(ef); | ||
| this.postgreSQLExecutionFactory = ef; | ||
| } | ||
|
|
||
| @Override | ||
| protected void appendWithKeyword(With obj) { | ||
| super.appendWithKeyword(obj); | ||
| for (WithItem with : obj.getItems()) { | ||
| if (with.isRecusive()) { | ||
| buffer.append(SQLConstants.Tokens.SPACE); | ||
| buffer.append(SQLConstants.Reserved.RECURSIVE); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Some literals in the select need a cast to prevent being seen as the unknown/string type | ||
| */ | ||
| @Override | ||
| public void visit(DerivedColumn obj) { | ||
| if (obj.getExpression() instanceof Literal) { | ||
| String castType = null; | ||
| if (obj.getExpression().getType() == TypeFacility.RUNTIME_TYPES.STRING) { | ||
| castType = "bpchar"; //$NON-NLS-1$ | ||
| } else if (obj.getExpression().getType() == TypeFacility.RUNTIME_TYPES.VARBINARY) { | ||
| castType = "bytea"; //$NON-NLS-1$ | ||
| } | ||
| if (castType != null) { | ||
| obj.setExpression(postgreSQLExecutionFactory.getLanguageFactory().createFunction("cast", //$NON-NLS-1$ | ||
| new Expression[] {obj.getExpression(), postgreSQLExecutionFactory.getLanguageFactory().createLiteral(castType, TypeFacility.RUNTIME_TYPES.STRING)}, | ||
| TypeFacility.RUNTIME_TYPES.STRING)); | ||
| } | ||
| } else if (obj.isProjected() && obj.getExpression() instanceof ColumnReference) { | ||
| ColumnReference elem = (ColumnReference)obj.getExpression(); | ||
| if (elem.getMetadataObject() != null) { | ||
| String nativeType = elem.getMetadataObject().getNativeType(); | ||
| if (TypeFacility.RUNTIME_TYPES.STRING.equals(elem.getType()) | ||
| && elem.getMetadataObject() != null | ||
| && nativeType != null | ||
| && nativeType.equalsIgnoreCase(PostgreSQLExecutionFactory.UUID_TYPE)) { | ||
| obj.setExpression(postgreSQLExecutionFactory.getLanguageFactory().createFunction("cast", //$NON-NLS-1$ | ||
| new Expression[] {obj.getExpression(), postgreSQLExecutionFactory.getLanguageFactory().createLiteral("varchar", TypeFacility.RUNTIME_TYPES.STRING)}, //$NON-NLS-1$ | ||
| TypeFacility.RUNTIME_TYPES.STRING)); | ||
| } | ||
| } | ||
| } | ||
| super.visit(obj); | ||
| } | ||
|
|
||
| @Override | ||
| public void visit(Array array) { | ||
| boolean allLiterals = true; | ||
| Class<?> baseType = array.getBaseType(); | ||
| //the pg driver expects only values that are convertible to string | ||
| //we could introduce some conversions, but for now we'll just fail | ||
| //some cases- there's also potential issue with date time as this logic | ||
| //won't consider the database timezone setting | ||
| if (!baseType.isArray() && | ||
| postgreSQLExecutionFactory.convertModifier.getSimpleTypeMapping(ConvertModifier.getCode(baseType)) != null) { | ||
| for (Expression ex : array.getExpressions()) { | ||
| if (!(ex instanceof Literal)) { | ||
| allLiterals = false; | ||
| break; | ||
| } | ||
| } | ||
| if (allLiterals) { | ||
| //TODO: this could be pushed to the language bridge factory | ||
| //to just push a literal array | ||
| addBinding(new Literal(array, array.getType())); | ||
| return; | ||
| } | ||
| } | ||
| //mixed or lob case | ||
| //TODO: if this is used in the context specifically of an array, rather than | ||
| //a row value, then this will fail | ||
| super.visit(array); | ||
| } | ||
|
|
||
| /* | ||
| @Override | ||
| public void visit(In obj) { | ||
| //TODO: array binding TEIID-3537 | ||
| super.visit(obj); | ||
| } | ||
| */ | ||
| } |
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
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
Oops, something went wrong.