| /* |
| * 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.exec.planner.sql.parser; |
| |
| import org.apache.calcite.sql.SqlCall; |
| import org.apache.calcite.sql.SqlKind; |
| import org.apache.calcite.sql.SqlLiteral; |
| import org.apache.calcite.sql.SqlNode; |
| import org.apache.calcite.sql.SqlNodeList; |
| import org.apache.calcite.sql.SqlNumericLiteral; |
| import org.apache.calcite.sql.SqlOperator; |
| import org.apache.calcite.sql.SqlSpecialOperator; |
| import org.apache.calcite.sql.SqlWriter; |
| import org.apache.calcite.sql.parser.SqlParserPos; |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.exec.planner.sql.handlers.AbstractSqlHandler; |
| import org.apache.drill.exec.planner.sql.handlers.MetastoreAnalyzeTableHandler; |
| import org.apache.drill.exec.planner.sql.handlers.SqlHandlerConfig; |
| import org.apache.drill.exec.util.Pointer; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| public class SqlMetastoreAnalyzeTable extends DrillSqlCall { |
| |
| public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("METASTORE_ANALYZE_TABLE", SqlKind.OTHER_DDL) { |
| public SqlCall createCall(SqlLiteral functionQualifier, SqlParserPos pos, SqlNode... operands) { |
| return new SqlMetastoreAnalyzeTable(pos, operands[0], (SqlNodeList) operands[1], operands[2], |
| (SqlLiteral) operands[3], (SqlNumericLiteral) operands[4]); |
| } |
| }; |
| |
| private final SqlNode tableRef; |
| private final SqlNodeList fieldList; |
| private final SqlLiteral level; |
| private final SqlLiteral estimate; |
| private final SqlNumericLiteral samplePercent; |
| |
| public SqlMetastoreAnalyzeTable(SqlParserPos pos, SqlNode tableRef, SqlNodeList fieldList, |
| SqlNode level, SqlLiteral estimate, SqlNumericLiteral samplePercent) { |
| super(pos); |
| this.tableRef = tableRef; |
| this.fieldList = fieldList; |
| this.level = level != null ? SqlLiteral.unchain(level) : null; |
| this.estimate = estimate; |
| this.samplePercent = samplePercent; |
| } |
| |
| @Override |
| public SqlOperator getOperator() { |
| return OPERATOR; |
| } |
| |
| @Override |
| public List<SqlNode> getOperandList() { |
| return Arrays.asList(tableRef, fieldList, level, estimate, samplePercent); |
| } |
| |
| @Override |
| public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { |
| writer.keyword("ANALYZE"); |
| writer.keyword("TABLE"); |
| tableRef.unparse(writer, leftPrec, rightPrec); |
| if (fieldList != null) { |
| writer.keyword("COLUMNS"); |
| if (fieldList.size() > 0) { |
| writer.keyword("("); |
| fieldList.get(0).unparse(writer, leftPrec, rightPrec); |
| for (int i = 1; i < fieldList.size(); i++) { |
| writer.keyword(","); |
| fieldList.get(i).unparse(writer, leftPrec, rightPrec); |
| } |
| writer.keyword(")"); |
| } else { |
| writer.keyword("NONE"); |
| } |
| } |
| writer.keyword("REFRESH"); |
| writer.keyword("METADATA"); |
| if (level != null) { |
| level.unparse(writer, leftPrec, rightPrec); |
| } |
| if (estimate != null) { |
| writer.keyword(estimate.booleanValue() ? "ESTIMATE" : "COMPUTE"); |
| writer.keyword("STATISTICS"); |
| } |
| if (samplePercent != null) { |
| writer.keyword("SAMPLE"); |
| samplePercent.unparse(writer, leftPrec, rightPrec); |
| writer.keyword("PERCENT"); |
| } |
| } |
| |
| @Override |
| public AbstractSqlHandler getSqlHandler(SqlHandlerConfig config, Pointer<String> textPlan) { |
| return new MetastoreAnalyzeTableHandler(config, textPlan); |
| } |
| |
| @Override |
| public AbstractSqlHandler getSqlHandler(SqlHandlerConfig config) { |
| return getSqlHandler(config, null); |
| } |
| |
| public SqlNode getTableRef() { |
| return tableRef; |
| } |
| |
| public List<SchemaPath> getFieldNames() { |
| if (fieldList == null) { |
| return null; |
| } |
| |
| return fieldList.getList().stream() |
| .map(sqlNode -> SchemaPath.parseFromString(sqlNode.toSqlString(null, true).getSql())) |
| .collect(Collectors.toList()); |
| } |
| |
| public SqlNodeList getFieldList() { |
| return fieldList; |
| } |
| |
| public SqlLiteral getLevel() { |
| return level; |
| } |
| |
| public SqlLiteral getEstimate() { |
| return estimate; |
| } |
| |
| public SqlNumericLiteral getSamplePercent() { |
| return samplePercent; |
| } |
| } |