Log only if compression ratio warnings enabled

No need for logging at DEBUG1 level. Only
log if the feature is enabled and compression
ratio is under the threshold.

(cherry picked from commit 954278d)

Author: antekresic

.unreleased/pr_8145

@@ -0,0 +1 @@
+Implements: #8145 Log only if compression ratio warnings are enabled

tsl/src/compression/api.c

@@ -544,22 +544,21 @@ compress_chunk_impl(Oid hypertable_relid, Oid chunk_relid)
 		/* Detect and emit warning if poor compression ratio is found */
 		float compression_ratio = ((float) before_size.total_size / after_size.total_size);
 		float POOR_COMPRESSION_THRESHOLD = 1.0;
-		ereport(ts_guc_enable_compression_ratio_warnings &&
-						compression_ratio < POOR_COMPRESSION_THRESHOLD ?
-					WARNING :
-					DEBUG1,
-				errcode(ERRCODE_WARNING),
-				errmsg("poor compression rate detected for chunk \"%s\"'",
-					   get_rel_name(chunk_relid)),
-				errdetail("Chunk \"%s\" has a poor compression ratio: %.2f. Size before "
-						  "compression: " INT64_FORMAT
-						  " bytes. Size after compression: " INT64_FORMAT " bytes",
-						  get_rel_name(chunk_relid),
-						  compression_ratio,
-						  before_size.total_size,
-						  after_size.total_size),
-				errhint("Changing compression settings for \"%s\" can improve compression rate",
-						get_rel_name(hypertable_relid)));
+		if (ts_guc_enable_compression_ratio_warnings &&
+			compression_ratio < POOR_COMPRESSION_THRESHOLD)
+			ereport(WARNING,
+					errcode(ERRCODE_WARNING),
+					errmsg("poor compression rate detected for chunk \"%s\"'",
+						   get_rel_name(chunk_relid)),
+					errdetail("Chunk \"%s\" has a poor compression ratio: %.2f. Size before "
+							  "compression: " INT64_FORMAT
+							  " bytes. Size after compression: " INT64_FORMAT " bytes",
+							  get_rel_name(chunk_relid),
+							  compression_ratio,
+							  before_size.total_size,
+							  after_size.total_size),
+					errhint("Changing compression settings for \"%s\" can improve compression rate",
+							get_rel_name(hypertable_relid)));
 	}
 	else
 	{