52 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			52 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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|  *
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|  * This program is free software: you can use, redistribute, and/or modify
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|  * it under the terms of the GNU Affero General Public License, version 3
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|  * or later ("AGPL"), as published by the Free Software Foundation.
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|  *
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|  * This program is distributed in the hope that it will be useful, but WITHOUT
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|  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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|  * FITNESS FOR A PARTICULAR PURPOSE.
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|  *
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|  * You should have received a copy of the GNU Affero General Public License
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|  * along with this program. If not, see <http://www.gnu.org/licenses/>.
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|  */
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| #ifndef TDENGINE_TSCALARFUNCTION_H
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| #define TDENGINE_TSCALARFUNCTION_H
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| #include "function.h"
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| 
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| typedef struct SScalarFuncParam {
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|   void*   data;
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|   int32_t num;
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|   int32_t type;
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|   int32_t bytes;
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| } SScalarFuncParam;
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| 
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| typedef struct SScalarFunctionSupport {
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|   struct SExprInfo   *pExprInfo;
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|   int32_t      numOfCols;
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|   SColumnInfo *colList;
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|   void        *exprList;   // client side used
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|   int32_t      offset;
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|   char**       data;
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| } SScalarFunctionSupport;
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| 
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| extern struct SScalarFunctionInfo scalarFunc[8];
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| 
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| int32_t evaluateExprNodeTree(tExprNode* pExprs, int32_t numOfRows, SScalarFuncParam* pOutput,
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|                           void* param, char* (*getSourceDataBlock)(void*, const char*, int32_t));
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| 
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| 
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| 
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| #ifdef __cplusplus
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| }
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| #endif
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| 
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| #endif  // TDENGINE_TSCALARFUNCTION_H
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