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Allow ALTER VIEW command to rename the column in the view.

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ALTER TABLE RENAME COLUMN command always can be used to rename the column
in the view, but it's reasonable to add that syntax to ALTER VIEW too.

Author: Fujii Masao
Reviewed-by: Ibrar Ahmed, Yu Kimura
Discussion: https://postgr.es/m/CAHGQGwHoQMD3b-MqTLcp1MgdhCpOKU7QNRwjFooT4_d+ti5v6g@mail.gmail.com
This commit is contained in:
Fujii Masao
2019-11-21 19:55:13 +09:00
parent 61a956d9cc
commit 30840c92ac
6 changed files with 88 additions and 3 deletions
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3
src/backend/commands/view.c
View File

@ -276,7 +276,8 @@ checkViewTupleDesc(TupleDesc newdesc, TupleDesc olddesc)
(errcode(ERRCODE_INVALID_TABLE_DEFINITION),
errmsg("cannot change name of view column \"%s\" to \"%s\"",
NameStr(oldattr->attname),
NameStr(newattr->attname))));
NameStr(newattr->attname)),
errhint("Use ALTER VIEW ... RENAME COLUMN ... to change name of view column instead.")));
/* XXX would it be safe to allow atttypmod to change? Not sure */
if (newattr->atttypid != oldattr->atttypid ||
newattr->atttypmod != oldattr->atttypmod)