• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 366 files with 76,620 lines of code.
• 12 very long files (35,993 lines of code)
• 18 long files (12,233 lines of code)
• 39 medium size files (11,927 lines of codeclsfd_ftr_w_mp_ins)
• 48 small files (6,926 lines of code)
• 249 very small files (9,541 lines of code)

There are 20 files with lines longer than 120 characters. In total, there are 3574 long lines.

File	# lines	# units	# long lines
pg_proc.h in src/postgres/include/catalog	4900	-	2788
pg_query_fingerprint_defs.c in src	6419	-	215
pg_operator.h in src/postgres/include/catalog	1661	-	179
pg_type.h in src/postgres/include/catalog	435	-	167
pg_aggregate.h in src/postgres/include/catalog	225	-	138
indexing.h in src/postgres/include/catalog	251	-	44
extract_source.rb in scripts	403	14	14
src_pl_plpgsql_src_pl_gram.c in src/postgres	4731	1	9
generate_fingerprint_outfuncs.rb in scripts	227	3	4
pg_class.h in src/postgres/include/catalog	105	-	4
pg_query_fingerprint.c in src	242	4	2
xlog.h in src/postgres/include/access	185	-	2
extract_headers.rb in scripts	206	9	1
pg_query_parse_plpgsql.c in src	310	6	1
src_pl_plpgsql_src_pl_comp.c in src/postgres	568	1	1
acl.h in src/postgres/include/utils	215	-	1
pg_config.h in src/postgres/include	193	-	1
user.h in src/postgres/include/commands	19	-	1
simplehash.h in src/postgres/include/lib	552	-	1
s_lock.h in src/postgres/include/storage	493	-	1