feature: support Oracle Batch Insert #7675
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There was a problem hiding this comment. By default, only the There was a problem hiding this comment. Currently, we only support batch insert of multiple columns (same columns) in a single table. We will continue to support this in the future. |
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| /* | ||
| * 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.seata.sqlparser.druid.oracle; | ||
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| import com.alibaba.druid.sql.ast.SQLExpr; | ||
| import com.alibaba.druid.sql.ast.SQLStatement; | ||
| import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr; | ||
| import com.alibaba.druid.sql.ast.expr.SQLMethodInvokeExpr; | ||
| import com.alibaba.druid.sql.ast.expr.SQLNullExpr; | ||
| import com.alibaba.druid.sql.ast.expr.SQLSequenceExpr; | ||
| import com.alibaba.druid.sql.ast.expr.SQLValuableExpr; | ||
| import com.alibaba.druid.sql.ast.expr.SQLVariantRefExpr; | ||
| import com.alibaba.druid.sql.ast.statement.SQLExprTableSource; | ||
| import com.alibaba.druid.sql.ast.statement.SQLInsertStatement; | ||
| import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleMultiInsertStatement; | ||
| import com.alibaba.druid.sql.dialect.oracle.visitor.OracleOutputVisitor; | ||
| import org.apache.seata.common.util.CollectionUtils; | ||
| import org.apache.seata.sqlparser.SQLInsertRecognizer; | ||
| import org.apache.seata.sqlparser.SQLType; | ||
| import org.apache.seata.sqlparser.struct.NotPlaceholderExpr; | ||
| import org.apache.seata.sqlparser.struct.Null; | ||
| import org.apache.seata.sqlparser.struct.SqlMethodExpr; | ||
| import org.apache.seata.sqlparser.struct.SqlSequenceExpr; | ||
| import org.apache.seata.sqlparser.util.ColumnUtils; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collection; | ||
| import java.util.List; | ||
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| /** | ||
| * Oracle Multi Insert Recognizer for INSERT ALL statements | ||
| */ | ||
| public class OracleMultiInsertRecognizer extends BaseOracleRecognizer implements SQLInsertRecognizer { | ||
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| private final OracleMultiInsertStatement ast; | ||
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| public OracleMultiInsertRecognizer(String originalSQL, SQLStatement ast) { | ||
| super(originalSQL); | ||
| this.ast = (OracleMultiInsertStatement) ast; | ||
| } | ||
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| @Override | ||
| public SQLType getSQLType() { | ||
| return SQLType.INSERT; | ||
| } | ||
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| @Override | ||
| public String getTableAlias() { | ||
| // Oracle Multi Insert usually only one table is involved, take the table alias of the first inserted item | ||
| if (!CollectionUtils.isEmpty(ast.getEntries())) { | ||
| OracleMultiInsertStatement.Entry firstEntry = ast.getEntries().get(0); | ||
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| if (firstEntry instanceof OracleMultiInsertStatement.InsertIntoClause) { | ||
| OracleMultiInsertStatement.InsertIntoClause insertClause = | ||
| (OracleMultiInsertStatement.InsertIntoClause) firstEntry; | ||
| if (insertClause.getTableSource() != null) { | ||
| return insertClause.getTableSource().getAlias(); | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
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| @Override | ||
| public String getTableName() { | ||
| // Oracle Multi Insert usually only one table is involved, take the table alias of the first inserted item | ||
| if (!CollectionUtils.isEmpty(ast.getEntries())) { | ||
| OracleMultiInsertStatement.Entry firstEntry = ast.getEntries().get(0); | ||
| if (firstEntry instanceof OracleMultiInsertStatement.InsertIntoClause) { | ||
| OracleMultiInsertStatement.InsertIntoClause insertClause = | ||
| (OracleMultiInsertStatement.InsertIntoClause) firstEntry; | ||
| if (insertClause.getTableSource() != null) { | ||
| StringBuilder sb = new StringBuilder(); | ||
| OracleOutputVisitor visitor = new OracleOutputVisitor(sb) { | ||
| @Override | ||
| public boolean visit(SQLExprTableSource x) { | ||
| printTableSourceExpr(x.getExpr()); | ||
| return false; | ||
| } | ||
| }; | ||
| visitor.visit(insertClause.getTableSource()); | ||
| return sb.toString(); | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
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| @Override | ||
| public boolean insertColumnsIsEmpty() { | ||
| if (!CollectionUtils.isEmpty(ast.getEntries())) { | ||
| OracleMultiInsertStatement.Entry firstEntry = ast.getEntries().get(0); | ||
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| if (firstEntry instanceof OracleMultiInsertStatement.InsertIntoClause) { | ||
| OracleMultiInsertStatement.InsertIntoClause insertClause = | ||
| (OracleMultiInsertStatement.InsertIntoClause) firstEntry; | ||
| return CollectionUtils.isEmpty(insertClause.getColumns()); | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
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| @Override | ||
| public List<String> getInsertColumns() { | ||
| if (!CollectionUtils.isEmpty(ast.getEntries())) { | ||
| OracleMultiInsertStatement.Entry firstEntry = ast.getEntries().get(0); | ||
| if (firstEntry instanceof OracleMultiInsertStatement.InsertIntoClause) { | ||
| OracleMultiInsertStatement.InsertIntoClause insertClause = | ||
| (OracleMultiInsertStatement.InsertIntoClause) firstEntry; | ||
| if (!CollectionUtils.isEmpty(insertClause.getColumns())) { | ||
| List<SQLExpr> columnSQLExprs = insertClause.getColumns(); | ||
| List<String> list = new ArrayList<>(columnSQLExprs.size()); | ||
| for (SQLExpr expr : columnSQLExprs) { | ||
| if (expr instanceof SQLIdentifierExpr) { | ||
| list.add(((SQLIdentifierExpr) expr).getName()); | ||
| } else { | ||
| wrapSQLParsingException(expr); | ||
| } | ||
| } | ||
| return list; | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
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| @Override | ||
| public List<List<Object>> getInsertRows(Collection<Integer> primaryKeyIndex) { | ||
| List<List<Object>> allRows = new ArrayList<>(); | ||
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| if (!CollectionUtils.isEmpty(ast.getEntries())) { | ||
| for (OracleMultiInsertStatement.Entry entry : ast.getEntries()) { | ||
| if (entry instanceof OracleMultiInsertStatement.InsertIntoClause) { | ||
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| OracleMultiInsertStatement.InsertIntoClause insertClause = | ||
| (OracleMultiInsertStatement.InsertIntoClause) entry; | ||
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| if (!CollectionUtils.isEmpty(insertClause.getValuesList())) { | ||
| for (SQLInsertStatement.ValuesClause valuesClause : insertClause.getValuesList()) { | ||
| List<SQLExpr> exprs = valuesClause.getValues(); | ||
| List<Object> row = new ArrayList<>(exprs.size()); | ||
| allRows.add(row); | ||
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| for (int i = 0, len = exprs.size(); i < len; i++) { | ||
| SQLExpr expr = exprs.get(i); | ||
| if (expr instanceof SQLNullExpr) { | ||
| row.add(Null.get()); | ||
| } else if (expr instanceof SQLValuableExpr) { | ||
| row.add(((SQLValuableExpr) expr).getValue()); | ||
| } else if (expr instanceof SQLVariantRefExpr) { | ||
| row.add(((SQLVariantRefExpr) expr).getName()); | ||
| } else if (expr instanceof SQLMethodInvokeExpr) { | ||
| row.add(SqlMethodExpr.get()); | ||
| } else if (expr instanceof SQLSequenceExpr) { | ||
| SQLSequenceExpr sequenceExpr = (SQLSequenceExpr) expr; | ||
| String sequence = sequenceExpr.getSequence().getSimpleName(); | ||
| String function = sequenceExpr.getFunction().name; | ||
| row.add(new SqlSequenceExpr(sequence, function)); | ||
| } else { | ||
| if (primaryKeyIndex.contains(i)) { | ||
| wrapSQLParsingException(expr); | ||
| } | ||
| row.add(NotPlaceholderExpr.get()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return allRows; | ||
| } | ||
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| @Override | ||
| public List<String> getInsertParamsValue() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public List<String> getDuplicateKeyUpdate() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public List<String> getInsertColumnsUnEscape() { | ||
| List<String> insertColumns = getInsertColumns(); | ||
| return ColumnUtils.delEscape(insertColumns, getDbType()); | ||
| } | ||
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| @Override | ||
| protected SQLStatement getAst() { | ||
| return ast; | ||
| } | ||
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| @Override | ||
| public boolean isSqlSyntaxSupports() { | ||
| return true; | ||
| } | ||
| } | ||
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