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authorPeter Eisentraut2017-06-30 12:50:39 +0000
committerPeter Eisentraut2017-06-30 12:50:39 +0000
commit54baa48139ae6b67347bea6a9183d494e625939b (patch)
tree01daab4bc29f542d12c2695e2806010d9f9036fa
parent08aed6604de2e6a9f4d499818d7c641cbf5eb9f7 (diff)
Copy collencoding in CREATE COLLATION / FROM
This command used to compute the collencoding entry like when a completely new collation is created. But for example when copying the "C" collation, this would then result in a collation that has a collencoding entry for the current database encoding rather than -1, thus not making an exact copy. This has probably no practical impact, but making this change keeps the catalog contents neat. Reported-by: Tom Lane <[email protected]>
-rw-r--r--src/backend/commands/collationcmds.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/src/backend/commands/collationcmds.c b/src/backend/commands/collationcmds.c
index 7f2ce4db4c..418f7342c7 100644
--- a/src/backend/commands/collationcmds.c
+++ b/src/backend/commands/collationcmds.c
@@ -64,7 +64,7 @@ DefineCollation(ParseState *pstate, List *names, List *parameters, bool if_not_e
char *collcollate = NULL;
char *collctype = NULL;
char *collproviderstr = NULL;
- int collencoding;
+ int collencoding = 0;
char collprovider = 0;
char *collversion = NULL;
Oid newoid;
@@ -126,6 +126,7 @@ DefineCollation(ParseState *pstate, List *names, List *parameters, bool if_not_e
collcollate = pstrdup(NameStr(((Form_pg_collation) GETSTRUCT(tp))->collcollate));
collctype = pstrdup(NameStr(((Form_pg_collation) GETSTRUCT(tp))->collctype));
collprovider = ((Form_pg_collation) GETSTRUCT(tp))->collprovider;
+ collencoding = ((Form_pg_collation) GETSTRUCT(tp))->collencoding;
ReleaseSysCache(tp);
@@ -185,12 +186,15 @@ DefineCollation(ParseState *pstate, List *names, List *parameters, bool if_not_e
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("parameter \"lc_ctype\" must be specified")));
- if (collprovider == COLLPROVIDER_ICU)
- collencoding = -1;
- else
+ if (!fromEl)
{
- collencoding = GetDatabaseEncoding();
- check_encoding_locale_matches(collencoding, collcollate, collctype);
+ if (collprovider == COLLPROVIDER_ICU)
+ collencoding = -1;
+ else
+ {
+ collencoding = GetDatabaseEncoding();
+ check_encoding_locale_matches(collencoding, collcollate, collctype);
+ }
}
if (!collversion)