org.apache.calcite.sql.validate.SqlValidatorImpl.Expander Class Reference

Inheritance diagram for org.apache.calcite.sql.validate.SqlValidatorImpl.Expander:

Collaboration diagram for org.apache.calcite.sql.validate.SqlValidatorImpl.Expander:

Public Member Functions
SqlNode	visit (SqlIdentifier id)

Protected Member Functions
SqlNode	visitScoped (SqlCall call)
SqlNode	expandDynamicStar (SqlIdentifier id, SqlIdentifier fqId)

Protected Attributes
final SqlValidatorImpl	validator

Package Functions
	Expander (SqlValidatorImpl validator, SqlValidatorScope scope)

Detailed Description

Converts an expression into canonical form by fully-qualifying any identifiers.

Definition at line 5917 of file SqlValidatorImpl.java.

Constructor & Destructor Documentation

org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.Expander ( SqlValidatorImpl  validator, SqlValidatorScope  scope  )

inlinepackage

Definition at line 5920 of file SqlValidatorImpl.java.

References org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.validator.

                                                                  {
      super(scope);
      this.validator = validator;
    }

Member Function Documentation

SqlNode org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.expandDynamicStar ( SqlIdentifier  id, SqlIdentifier  fqId  )

inlineprotected

Definition at line 5970 of file SqlValidatorImpl.java.

Referenced by org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.visit(), and org.apache.calcite.sql.validate.SqlValidatorImpl.ExtendedExpander.visit().

                                                                              {
      if (DynamicRecordType.isDynamicStarColName(Util.last(fqId.names))
          && !DynamicRecordType.isDynamicStarColName(Util.last(id.names))) {
        // Convert a column ref into ITEM(*, 'col_name')
        // for a dynamic star field in dynTable's rowType.
        SqlNode[] inputs = new SqlNode[2];
        inputs[0] = fqId;
        inputs[1] = SqlLiteral.createCharString(
            Util.last(id.names),
            id.getParserPosition());
        return new SqlBasicCall(
            SqlStdOperatorTable.ITEM,
            inputs,
            id.getParserPosition());
      }
      return fqId;
    }

Here is the caller graph for this function:

SqlNode org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.visit ( SqlIdentifier  id )

inline

Definition at line 5925 of file SqlValidatorImpl.java.

References org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.expandDynamicStar().

                                                     {
      // First check for builtin functions which don't have
      // parentheses, like "LOCALTIME".
      final SqlCall call = validator.makeNullaryCall(id);
      if (call != null) {
        return call.accept(this);
      }
      final SqlIdentifier fqId = getScope().fullyQualify(id).identifier;
      SqlNode expandedExpr = expandDynamicStar(id, fqId);
      validator.setOriginal(expandedExpr, id);
      return expandedExpr;
    }

Here is the call graph for this function:

SqlNode org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.visitScoped ( SqlCall  call )

inlineprotected

Definition at line 5938 of file SqlValidatorImpl.java.

References run_benchmark_import.result.

                                                          {
      switch (call.getKind()) {
      case SCALAR_QUERY:
      case CURRENT_VALUE:
      case NEXT_VALUE:
      case WITH:
        return call;
      }
      // Only visits arguments which are expressions. We don't want to
      // qualify non-expressions such as 'x' in 'empno * 5 AS x'.

      // ArgHandler<SqlNode> argHandler =                                         // HEAVY.AI original 
      //     new CallCopyingArgHandler(call, false);                              // HEAVY.AI original

      //                                                                          // HEAVY.AI new
      // Allow the operator to decide if it needs to be recreated                 // HEAVY.AI new
      //    Useful for UDFs that are supplying default arguements that do         // HEAVY.AI new
      //    not already exist                                                     // HEAVY.AI new
      //                                                                          // HEAVY.AI new
      // Only Heavy.AI Operators (UDFs) have the fn requiresCreate() overloaded   // HEAVY.AI new
      //                                                                          // HEAVY.AI new
      boolean bCreate = call.getOperator().requiresCreate(call.getOperandList()); // HEAVY.AI new
      ArgHandler<SqlNode> argHandler =                                            // HEAVY.AI new
          new CallCopyingArgHandler(call, bCreate);                               // HEAVY.AI new


      call.getOperator().acceptCall(this, call, true, argHandler);
      final SqlNode result = argHandler.result();
      validator.setOriginal(result, call);
      return result;
    }

Member Data Documentation

final SqlValidatorImpl org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.validator

protected

Definition at line 5918 of file SqlValidatorImpl.java.

Referenced by org.apache.calcite.sql.validate.SqlValidatorImpl.Expander.Expander(), org.apache.calcite.sql.validate.SqlValidatorImpl.SelectExpander.visit(), and org.apache.calcite.sql.validate.SqlValidatorImpl.ExtendedExpander.visit().

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/java/calcite/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java