License fix

Author: danolivo

aqo.c

@@ -1,3 +1,13 @@
+/*
+ * aqo.c
+ *		Adaptive query optimization extension
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/aqo.c
+ */
+
 #include "aqo.h"
 
 PG_MODULE_MAGIC;

aqo.h

@@ -108,7 +108,8 @@
  * Copyright (c) 2016-2020, Postgres Professional
  *
  * IDENTIFICATION
- *	  contrib/aqo/aqo.h
+ *	  aqo/aqo.h
+ *
  */
 #ifndef __ML_CARD_H__
 #define __ML_CARD_H__

auto_tuning.c

@@ -1,13 +1,21 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	AUTOMATIC QUERY TUNING
  *
  * This module automatically implements basic strategies of tuning AQO for best
  * PostgreSQL performance.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/auto_tuning.c
+ *
+ */
+
+#include "aqo.h"
 
 /*
  * Auto tuning criteria criteria of an query convergence by overall cardinality

cardinality_estimation.c

@@ -1,14 +1,22 @@
-#include "aqo.h"
-#include "optimizer/optimizer.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	CARDINALITY ESTIMATION
  *
  * This is the module in which cardinality estimation problem obtained from
  * cardinality_hooks turns into machine learning problem.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/cardinality_estimation.c
+ *
+ */
+
+#include "aqo.h"
+#include "optimizer/optimizer.h"
 
 /*
  * General method for prediction the cardinality of given relation.

cardinality_hooks.c

@@ -1,6 +1,5 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	CARDINALITY ESTIMATION HOOKS
  *
@@ -17,7 +16,16 @@
  * refusal to predict cardinality. In this case hooks also use default
  * postgreSQL cardinality estimator.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/cardinality_hooks.c
+ *
+ */
+
+#include "aqo.h"
 
 double predicted_ppi_rows;
 double fss_ppi_hash;

hash.c

@@ -1,6 +1,5 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	HASH FUNCTIONS
  *
@@ -11,7 +10,16 @@
  * only in the values of their constants. We want query_hash, clause_hash and
  * fss_hash to satisfy this property.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/hash.c
+ *
+ */
+
+#include "aqo.h"
 
 static int	get_str_hash(const char *str);
 static int	get_node_hash(Node *node);

machine_learning.c

@@ -1,6 +1,5 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	MACHINE LEARNING TECHNIQUES
  *
@@ -11,7 +10,16 @@
  * setting after learning procedure. This property also allows to adapt to
  * workloads which properties are slowly changed.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/machine_learning.c
+ *
+ */
+
+#include "aqo.h"
 
 static double fs_distance(double *a, double *b, int len);
 static double fs_similarity(double dist);

path_utils.c

@@ -1,11 +1,19 @@
-#include "aqo.h"
-#include "optimizer/optimizer.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	EXTRACTING PATH INFORMATION UTILITIES
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/path_utils.c
+ *
+ */
+
+#include "aqo.h"
+#include "optimizer/optimizer.h"
 
 /*
  * Returns list of marginal selectivities using as an arguments for each clause

postprocessing.c

@@ -1,17 +1,25 @@
-#include "aqo.h"
-#include "access/parallel.h"
-#include "optimizer/optimizer.h"
-#include "utils/queryenvironment.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	QUERY EXECUTION STATISTICS COLLECTING UTILITIES
  *
  * The module which updates data in the feature space linked with executed query
  * type using obtained query execution statistics.
  * Works only if aqo_learn is on.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/postprocessing.c
+ *
+ */
+
+#include "aqo.h"
+#include "access/parallel.h"
+#include "optimizer/optimizer.h"
+#include "utils/queryenvironment.h"
 
 typedef struct
 {

preprocessing.c

@@ -1,9 +1,5 @@
-#include "aqo.h"
-#include "access/parallel.h"
-#include "access/table.h"
-#include "commands/extension.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	QUERY PREPROCESSING HOOKS
  *
@@ -51,7 +47,19 @@
  * 4. For given fspace_hash we may use its machine learning settings, but now
  *		the machine learning setting are fixed for all feature spaces.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/preprocessing.c
+ *
+ */
+
+#include "aqo.h"
+#include "access/parallel.h"
+#include "access/table.h"
+#include "commands/extension.h"
 
 static bool isQueryUsingSystemRelation(Query *query);
 static bool isQueryUsingSystemRelation_walker(Node *node, void *context);