fix: examples of default configuration

Author: agneum

configs/config.example.physical_generic.yml

@@ -163,9 +163,7 @@ retrieval:
 
           # Adjust PostgreSQL configuration of the sync container.
           configs:
-            shared_buffers: 1GB
-            shared_preload_libraries: "pg_stat_statements"
-            work_mem: "100MB"
+            shared_buffers: 128MB
 
         # Set environment variables here. See https://www.postgresql.org/docs/current/libpq-envars.html
         envs:
@@ -218,9 +216,7 @@ retrieval:
 
           # Adjust PostgreSQL configuration of the promotion container.
           configs:
-            shared_buffers: 1GB
-            shared_preload_libraries: "pg_stat_statements"
-            work_mem: "100MB"
+            shared_buffers: 128MB
 
         # It is possible to define a pre-precessing script. For example, "/tmp/scripts/custom.sh".
         # Default: empty string (no pre-processing defined).

configs/config.example.physical_walg.yml

@@ -163,9 +163,7 @@ retrieval:
 
           # Adjust PostgreSQL configuration of the sync container.
           configs:
-            shared_buffers: 1GB
-            shared_preload_libraries: "pg_stat_statements"
-            work_mem: "100MB"
+            shared_buffers: 128MB
 
         # Passes custom environment variables to the Docker container with the restoring tool.
         envs:
@@ -208,9 +206,7 @@ retrieval:
 
           # Adjust PostgreSQL configuration of the promotion container.
           configs:
-            shared_buffers: 1GB
-            shared_preload_libraries: "pg_stat_statements"
-            work_mem: "100MB"
+            shared_buffers: 128MB
 
         # It is possible to define a pre-precessing script. For example, "/tmp/scripts/custom.sh".
         # Default: empty string (no pre-processing defined).

pkg/retrieval/engine/postgres/snapshot/physical.go

@@ -391,8 +391,8 @@ func (p *PhysicalInitial) promoteInstance(ctx context.Context, clonePath string)
 	}
 
 	// Apply promotion configs.
-	if syncConfig := p.options.Promotion.Configs; len(syncConfig) > 0 {
-		if err := configuration.NewCorrectorWithExtraConfig(syncConfig).ApplyExtraConf(clonePath); err != nil {
+	if promotionConfig := p.options.Promotion.Configs; len(promotionConfig) > 0 {
+		if err := configuration.NewCorrectorWithExtraConfig(promotionConfig).ApplyExtraConf(clonePath); err != nil {
 			return errors.Wrap(err, "cannot update promotion configs")
 		}
 	}