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) 2016-2018, 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"
 
 static double get_mean(double *elems, int nelems);
 static double get_estimation(double *elems, int nelems);

cardinality_estimation.c

@@ -1,13 +1,21 @@
-#include "aqo.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"
 
 /*
  * 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"
 
 static void call_default_set_baserel_rows_estimate(PlannerInfo *root,
 									   RelOptInfo *rel);

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

@@ -1,10 +1,18 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	EXTRACTING PATH INFORMATION UTILITIES
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/path_utils.c
+ *
+ */
+
+#include "aqo.h"
 
 /*
  * Returns list of marginal selectivities using as an arguments for each clause

postprocessing.c

@@ -1,15 +1,23 @@
-#include "aqo.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 "utils/queryenvironment.h"
 
 static double cardinality_sum_errors;
 static int	cardinality_num_objects;

preprocessing.c

@@ -1,7 +1,5 @@
-#include "aqo.h"
-#include "access/parallel.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	QUERY PREPROCESSING HOOKS
  *
@@ -49,7 +47,17 @@
  * 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"
 
 #define CREATE_EXTENSION_STARTSTRING_0 \
 "-- complain if script is sourced in psql, rather than via CREATE EXTENSION"

selectivity_cache.c

@@ -1,14 +1,22 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	SELECTIVITY CACHE
  *
  * Stores the clause selectivity with the given relids for parametrized
  * clauses, because otherwise it cannot be restored after query execution
  * without PlannerInfo.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/selectivity_cache.c
+ *
+ */
+
+#include "aqo.h"
 
 typedef struct
 {

storage.c

@@ -1,13 +1,21 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	STORAGE INTERACTION
  *
  * This module is responsible for interaction with the storage of AQO data.
  * It does not provide information protection from concurrent updates.
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/storage.c
+ *
+ */
+
+#include "aqo.h"
 
 HTAB *deactivated_queries = NULL;
 

utils.c

@@ -1,10 +1,18 @@
-#include "aqo.h"
-
-/*****************************************************************************
+/*
+ *******************************************************************************
  *
  *	UTILITIES
  *
- *****************************************************************************/
+ *******************************************************************************
+ *
+ * Copyright (c) 2016-2020, Postgres Professional
+ *
+ * IDENTIFICATION
+ *	  aqo/utils.c
+ *
+ */
+
+#include "aqo.h"
 
 /* TODO: get rid of those static vars */
 static void *argsort_a;