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Speed up conversion of signed integers to C strings.
authorRobert Haas <rhaas@postgresql.org>
Sat, 20 Nov 2010 03:13:11 +0000 (22:13 -0500)
committerRobert Haas <rhaas@postgresql.org>
Sat, 20 Nov 2010 03:13:11 +0000 (22:13 -0500)
commit4fc115b2e981f8c63165ca86a23215380a3fda66
treefd2a51d0af0e2c3d2d3ce6d701c4402fef65c34e
parent0f61d4dd1b4f95832dcd81c9688dac56fd6b5687
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.
src/backend/utils/adt/int8.c
src/backend/utils/adt/numutils.c
src/include/utils/builtins.h
src/test/regress/expected/int2.out
src/test/regress/expected/int4.out
src/test/regress/expected/int8.out
src/test/regress/sql/int2.sql
src/test/regress/sql/int4.sql
src/test/regress/sql/int8.sql