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firebird-mirror/src/dsql/ExprNodes.h

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Create ExprNode class hierarchy. Convert CONCATENATE and aggregate functions to it. Fix some bugs: - select sum(n) over (order by n2), sum(n) over (), n, n2 from x1; - select (select 1 from x1 b where list(1, a.n) = 1) from x1 a;
2010-02-13 21:29:29 +01:00
/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (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.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Adriano dos Santos Fernandes
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2010 Adriano dos Santos Fernandes <adrianosf@gmail.com>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
#ifndef DSQL_EXPR_NODES_H
#define DSQL_EXPR_NODES_H
#include "../jrd/common.h"
#include "../jrd/blr.h"
#include "../dsql/Nodes.h"
Refactor user and system functions nodes
2010-04-05 20:43:11 +02:00
class SysFunction;
Create ExprNode class hierarchy. Convert CONCATENATE and aggregate functions to it. Fix some bugs: - select sum(n) over (order by n2), sum(n) over (), n, n2 from x1; - select (select 1 from x1 b where list(1, a.n) = 1) from x1 a;
2010-02-13 21:29:29 +01:00
namespace Jrd {
class ConcatenateNode : public TypedNode<ExprNode, ExprNode::TYPE_CONCATENATE>
{
public:
explicit ConcatenateNode(MemoryPool& pool, dsql_nod* aArg1 = NULL, dsql_nod* aArg2 = NULL);
static DmlNode* parse(thread_db* tdbb, MemoryPool& pool, CompilerScratch* csb, UCHAR blrOp);
virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const;
virtual void setParameterName(dsql_par* parameter) const;
virtual bool setParameterType(DsqlCompilerScratch* dsqlScratch,
dsql_nod* node, bool forceVarChar) const;
virtual void genBlr();
virtual void make(dsc* desc, dsql_nod* nullReplacement);
virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
virtual ExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;
virtual ExprNode* pass2(thread_db* tdbb, CompilerScratch* csb);
virtual dsc* execute(thread_db* tdbb, jrd_req* request) const;
protected:
virtual ExprNode* internalDsqlPass();
public:
dsql_nod* dsqlArg1;
dsql_nod* dsqlArg2;
jrd_nod* arg1;
jrd_nod* arg2;
};
// OVER is used only in DSQL. In the engine, normal aggregate functions are used in partitioned
// maps.
class OverNode : public TypedNode<ExprNode, ExprNode::TYPE_OVER>
{
public:
explicit OverNode(MemoryPool& pool, dsql_nod* aAggExpr = NULL, dsql_nod* aPartition = NULL,
dsql_nod* aOrder = NULL);
virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const;
virtual bool dsqlAggregateFinder(AggregateFinder& visitor);
virtual bool dsqlAggregate2Finder(Aggregate2Finder& visitor);
virtual bool dsqlInvalidReferenceFinder(InvalidReferenceFinder& visitor);
virtual bool dsqlSubSelectFinder(SubSelectFinder& visitor);
virtual bool dsqlFieldRemapper(FieldRemapper& visitor);
virtual void setParameterName(dsql_par* parameter) const;
virtual void genBlr();
virtual void make(dsc* desc, dsql_nod* nullReplacement);
virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
virtual ExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;
virtual dsc* execute(thread_db* tdbb, jrd_req* request) const;
protected:
virtual ExprNode* internalDsqlPass();
public:
dsql_nod* dsqlAggExpr;
dsql_nod* dsqlPartition;
dsql_nod* dsqlOrder;
};
Feature CORE-2006 - SUBSTRING with regular expression (SIMILAR TO) capability
2010-02-21 02:47:54 +01:00
class SubstringSimilarNode : public TypedNode<ExprNode, ExprNode::TYPE_SUBSTRING_SIMILAR>
{
public:
explicit SubstringSimilarNode(MemoryPool& pool, dsql_nod* aExpr = NULL,
dsql_nod* aPattern = NULL, dsql_nod* aEscape = NULL);
static DmlNode* parse(thread_db* tdbb, MemoryPool& pool, CompilerScratch* csb, UCHAR blrOp);
virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const;
virtual void setParameterName(dsql_par* parameter) const;
virtual bool setParameterType(DsqlCompilerScratch* dsqlScratch,
dsql_nod* node, bool forceVarChar) const;
virtual void genBlr();
virtual void make(dsc* desc, dsql_nod* nullReplacement);
virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
virtual ExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;
virtual ExprNode* pass1(thread_db* tdbb, CompilerScratch* csb);
virtual ExprNode* pass2(thread_db* tdbb, CompilerScratch* csb);
virtual dsc* execute(thread_db* tdbb, jrd_req* request) const;
protected:
virtual ExprNode* internalDsqlPass();
public:
dsql_nod* dsqlExpr;
dsql_nod* dsqlPattern;
dsql_nod* dsqlEscape;
jrd_nod* expr;
jrd_nod* pattern;
jrd_nod* escape;
};
Refactor user and system functions nodes
2010-04-05 20:43:11 +02:00
class SysFuncCallNode : public TypedNode<ExprNode, ExprNode::TYPE_SYSFUNC_CALL>
{
public:
explicit SysFuncCallNode(MemoryPool& pool, const Firebird::MetaName& aName,
dsql_nod* aArgs = NULL);
static DmlNode* parse(thread_db* tdbb, MemoryPool& pool, CompilerScratch* csb, UCHAR blrOp);
virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const;
virtual void setParameterName(dsql_par* parameter) const;
virtual void genBlr();
virtual void make(dsc* desc, dsql_nod* nullReplacement);
virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
virtual ExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;
virtual bool dsqlMatch(const ExprNode* other, bool ignoreMapCast) const;
virtual ExprNode* pass2(thread_db* tdbb, CompilerScratch* csb);
virtual dsc* execute(thread_db* tdbb, jrd_req* request) const;
protected:
virtual ExprNode* internalDsqlPass();
public:
Firebird::MetaName name;
dsql_nod* dsqlArgs;
bool dsqlSpecialSyntax;
jrd_nod* args;
const SysFunction* function;
};
class UdfCallNode : public TypedNode<ExprNode, ExprNode::TYPE_UDF_CALL>
{
public:
explicit UdfCallNode(MemoryPool& pool, const Firebird::QualifiedName& aName,
dsql_nod* aArgs = NULL);
static DmlNode* parse(thread_db* tdbb, MemoryPool& pool, CompilerScratch* csb, UCHAR blrOp);
virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const;
virtual void setParameterName(dsql_par* parameter) const;
virtual void genBlr();
virtual void make(dsc* desc, dsql_nod* nullReplacement);
virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
virtual ExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;
virtual bool dsqlMatch(const ExprNode* other, bool ignoreMapCast) const;
virtual ExprNode* pass1(thread_db* tdbb, CompilerScratch* csb);
virtual ExprNode* pass2(thread_db* tdbb, CompilerScratch* csb);
virtual dsc* execute(thread_db* tdbb, jrd_req* request) const;
protected:
virtual ExprNode* internalDsqlPass();
public:
Firebird::QualifiedName name;
dsql_nod* dsqlArgs;
jrd_nod* args;
/*const*/ Function* function;
private:
dsql_udf* dsqlFunction;
};
Create ExprNode class hierarchy. Convert CONCATENATE and aggregate functions to it. Fix some bugs: - select sum(n) over (order by n2), sum(n) over (), n, n2 from x1; - select (select 1 from x1 b where list(1, a.n) = 1) from x1 a;
2010-02-13 21:29:29 +01:00
} // namespace
#endif // DSQL_EXPR_NODES_H
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