Rename guc, which connected with setting minimum number of neighbours for predicting

Alena Rybakina · Alena Rybakina · commit 003e492dca9e · 2023-01-27T11:39:39.000+03:00
and add more understandable explanations of guc.
diff --git a/aqo.c b/aqo.c
@@ -307,8 +307,8 @@ _PG_init(void)
 							NULL
 	);
 
-	DefineCustomIntVariable("aqo.k_neighbors_threshold",
-							"Set the threshold of number of neighbors for predicting.",
+	DefineCustomIntVariable("aqo.min_neighbors_for_predicting",
+							"Set how many neighbors the cardinality prediction will be calculated",
 							NULL,
 							&aqo_k,
 							3,
@@ -320,7 +320,7 @@ _PG_init(void)
 							NULL);
 
 	DefineCustomBoolVariable("aqo.predict_with_few_neighbors",
-							"Make prediction with less neighbors than we should have.",
+							"Establish the ability to make predictions with fewer neighbors than were found.",
 							 NULL,
 							 &aqo_predict_with_few_neighbors,
 							 true,
diff --git a/expected/look_a_like.out b/expected/look_a_like.out
@@ -3,7 +3,7 @@ SET aqo.join_threshold = 0;
 SET aqo.mode = 'learn';
 SET aqo.show_details = 'on';
 set aqo.show_hash = 'off';
-SET aqo.k_neighbors_threshold = 1;
+SET aqo.min_neighbors_for_predicting = 1;
 SET enable_nestloop = 'off';
 SET enable_mergejoin = 'off';
 SET enable_material = 'off';
diff --git a/sql/look_a_like.sql b/sql/look_a_like.sql
@@ -3,7 +3,7 @@ SET aqo.join_threshold = 0;
 SET aqo.mode = 'learn';
 SET aqo.show_details = 'on';
 set aqo.show_hash = 'off';
-SET aqo.k_neighbors_threshold = 1;
+SET aqo.min_neighbors_for_predicting = 1;
 SET enable_nestloop = 'off';
 SET enable_mergejoin = 'off';
 SET enable_material = 'off';
