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Commit27ea115

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License fix
1 parent1ef6dcd commit27ea115

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13 files changed

+156
-57
lines changed

13 files changed

+156
-57
lines changed

‎aqo.c‎

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/*
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* aqo.c
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*Adaptive query optimization extension
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/aqo.c
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*/
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#include"aqo.h"
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PG_MODULE_MAGIC;

‎aqo.h‎

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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* contrib/aqo/aqo.h
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* aqo/aqo.h
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*
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*/
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#ifndef__ML_CARD_H__
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#define__ML_CARD_H__

‎auto_tuning.c‎

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#include"aqo.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*AUTOMATIC QUERY TUNING
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*
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* This module automatically implements basic strategies of tuning AQO for best
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* PostgreSQL performance.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/auto_tuning.c
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*
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*/
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#include"aqo.h"
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/*
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* Auto tuning criteria criteria of an query convergence by overall cardinality

‎cardinality_estimation.c‎

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#include"aqo.h"
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#include"optimizer/optimizer.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*CARDINALITY ESTIMATION
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*
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* This is the module in which cardinality estimation problem obtained from
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* cardinality_hooks turns into machine learning problem.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/cardinality_estimation.c
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*
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*/
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#include"aqo.h"
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#include"optimizer/optimizer.h"
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/*
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* General method for prediction the cardinality of given relation.

‎cardinality_hooks.c‎

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#include"aqo.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*CARDINALITY ESTIMATION HOOKS
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*
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* refusal to predict cardinality. In this case hooks also use default
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* postgreSQL cardinality estimator.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/cardinality_hooks.c
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*
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*/
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#include"aqo.h"
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doublepredicted_ppi_rows;
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doublefss_ppi_hash;

‎hash.c‎

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#include"aqo.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*HASH FUNCTIONS
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*
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* only in the values of their constants. We want query_hash, clause_hash and
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* fss_hash to satisfy this property.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/hash.c
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*
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*/
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#include"aqo.h"
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staticintget_str_hash(constchar*str);
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staticintget_node_hash(Node*node);

‎machine_learning.c‎

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#include"aqo.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*MACHINE LEARNING TECHNIQUES
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*
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* setting after learning procedure. This property also allows to adapt to
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* workloads which properties are slowly changed.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/machine_learning.c
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*
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*/
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#include"aqo.h"
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staticdoublefs_distance(double*a,double*b,intlen);
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staticdoublefs_similarity(doubledist);

‎path_utils.c‎

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#include"aqo.h"
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#include"optimizer/optimizer.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*EXTRACTING PATH INFORMATION UTILITIES
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/path_utils.c
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*
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*/
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#include"aqo.h"
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#include"optimizer/optimizer.h"
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/*
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* Returns list of marginal selectivities using as an arguments for each clause

‎postprocessing.c‎

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#include"aqo.h"
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#include"access/parallel.h"
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#include"optimizer/optimizer.h"
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#include"utils/queryenvironment.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*QUERY EXECUTION STATISTICS COLLECTING UTILITIES
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*
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* The module which updates data in the feature space linked with executed query
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* type using obtained query execution statistics.
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* Works only if aqo_learn is on.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/postprocessing.c
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*
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*/
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#include"aqo.h"
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#include"access/parallel.h"
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#include"optimizer/optimizer.h"
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#include"utils/queryenvironment.h"
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typedefstruct
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{

‎preprocessing.c‎

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#include"aqo.h"
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#include"access/parallel.h"
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#include"access/table.h"
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#include"commands/extension.h"
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/*****************************************************************************
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/*
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*******************************************************************************
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*
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*QUERY PREPROCESSING HOOKS
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*
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* 4. For given fspace_hash we may use its machine learning settings, but now
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*the machine learning setting are fixed for all feature spaces.
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*
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*****************************************************************************/
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*******************************************************************************
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*
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* Copyright (c) 2016-2020, Postgres Professional
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*
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* IDENTIFICATION
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* aqo/preprocessing.c
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*
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*/
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#include"aqo.h"
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#include"access/parallel.h"
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#include"access/table.h"
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#include"commands/extension.h"
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staticboolisQueryUsingSystemRelation(Query*query);
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staticboolisQueryUsingSystemRelation_walker(Node*node,void*context);

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