database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-07 00:36:50 +03:00
Code Activity

Optimizations for integer to decimal output.

Browse Source 
Using a lookup table of digit pairs reduces the number of divisions
needed, and calculating the length upfront saves some work; these
ideas are taken from the code previously committed for floats.

David Fetter, reviewed by Kyotaro Horiguchi, Tels, and me.

Discussion: https://postgr.es/m/20190924052620.GP31596%40fetter.org
This commit is contained in:
Andrew Gierth
2020-02-01 21:57:14 +00:00
parent 7bae0ad9fc
commit 1fd687a035
5 changed files with 300 additions and 240 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/backend/utils/adt/int8.c
View File

@ -26,7 +26,6 @@
#include "utils/builtins.h"
#include "utils/int8.h"
#define MAXINT8LEN 25
typedef struct
{