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| author | Robert Haas <rhaas@postgresql.org> | 2010-11-19 22:13:11 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2010-11-19 22:13:11 -0500 |
| commit | 4fc115b2e981f8c63165ca86a23215380a3fda66 (patch) | |
| tree | fd2a51d0af0e2c3d2d3ce6d701c4402fef65c34e /src/backend/utils/adt/int8.c | |
| parent | 0f61d4dd1b4f95832dcd81c9688dac56fd6b5687 (diff) | |
| download | postgresql-4fc115b2e981f8c63165ca86a23215380a3fda66.tar.gz postgresql-4fc115b2e981f8c63165ca86a23215380a3fda66.zip | |
Speed up conversion of signed integers to C strings.
A hand-coded implementation turns out to be much faster than calling
printf(). In passing, add a few more regresion tests.
Andres Freund, with assorted, mostly cosmetic changes.
Diffstat (limited to 'src/backend/utils/adt/int8.c')
| -rw-r--r-- | src/backend/utils/adt/int8.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/backend/utils/adt/int8.c b/src/backend/utils/adt/int8.c index 894110d7a2c..91133f7741e 100644 --- a/src/backend/utils/adt/int8.c +++ b/src/backend/utils/adt/int8.c @@ -20,6 +20,7 @@ #include "funcapi.h" #include "libpq/pqformat.h" #include "utils/int8.h" +#include "utils/builtins.h" #define MAXINT8LEN 25 @@ -157,13 +158,10 @@ Datum int8out(PG_FUNCTION_ARGS) { int64 val = PG_GETARG_INT64(0); - char *result; - int len; char buf[MAXINT8LEN + 1]; + char *result; - if ((len = snprintf(buf, MAXINT8LEN, INT64_FORMAT, val)) < 0) - elog(ERROR, "could not format int8"); - + pg_lltoa(val, buf); result = pstrdup(buf); PG_RETURN_CSTRING(result); } |