database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-29 10:41:53 +03:00
Code Activity

Add a transform function for numeric typmod coercisions.

Browse Source 
This enables ALTER TABLE to skip table and index rebuilds when a column
is changed to an unconstrained numeric, or when the scale is unchanged
and the precision does not decrease.

Noah Misch, with a few stylistic changes and a fix for an OID
collision by me.
This commit is contained in:
Robert Haas
2012-02-07 12:08:26 -05:00
parent af7914c662
commit 3cc0800829
4 changed files with 53 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/include/utils/builtins.h
View File

@ -913,6 +913,7 @@ extern Datum numeric_recv(PG_FUNCTION_ARGS);
extern Datum numeric_send(PG_FUNCTION_ARGS);
extern Datum numerictypmodin(PG_FUNCTION_ARGS);
extern Datum numerictypmodout(PG_FUNCTION_ARGS);
extern Datum numeric_transform(PG_FUNCTION_ARGS);
extern Datum numeric (PG_FUNCTION_ARGS);
extern Datum numeric_abs(PG_FUNCTION_ARGS);
extern Datum numeric_uminus(PG_FUNCTION_ARGS);