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| author | Robert Haas <rhaas@postgresql.org> | 2012-02-07 12:08:26 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2012-02-07 12:08:26 -0500 |
| commit | 3cc0800829a6dda5347497337b0cf43848da4acf (patch) | |
| tree | a489c43476d04b73fe90bac20c274ccc8987bb2f /src/include/utils/builtins.h | |
| parent | af7914c6627bcf0b0ca614e9ce95d3f8056602bf (diff) | |
| download | postgresql-3cc0800829a6dda5347497337b0cf43848da4acf.tar.gz postgresql-3cc0800829a6dda5347497337b0cf43848da4acf.zip | |
Add a transform function for numeric typmod coercisions.
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.
Diffstat (limited to 'src/include/utils/builtins.h')
| -rw-r--r-- | src/include/utils/builtins.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h index 68179d550f8..2c331ce5eb9 100644 --- a/src/include/utils/builtins.h +++ b/src/include/utils/builtins.h @@ -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); |