From 1ec97d58c0c7052f004b6ed030d19ab289963582 Mon Sep 17 00:00:00 2001 From: Abhijit Menon-Sen Date: Mon, 5 May 2014 13:22:58 +0530 Subject: [PATCH 18/30] deparse: Support CREATE COLLATION via DefineStmt --- src/backend/tcop/deparse_utility.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/src/backend/tcop/deparse_utility.c b/src/backend/tcop/deparse_utility.c index 9b8eadb..2145330 100644 --- a/src/backend/tcop/deparse_utility.c +++ b/src/backend/tcop/deparse_utility.c @@ -616,6 +616,33 @@ get_persistence_str(char persistence) } static ObjTree * +deparse_DefineStmt_Collation(Oid objectId, DefineStmt *define) +{ + HeapTuple colTup; + ObjTree *stmt; + Form_pg_collation colForm; + + colTup = SearchSysCache1(COLLOID, ObjectIdGetDatum(objectId)); + if (!HeapTupleIsValid(colTup)) + elog(ERROR, "cache lookup failed for collation with OID %u", objectId); + colForm = (Form_pg_collation) GETSTRUCT(colTup); + + stmt = new_objtree_VA("CREATE COLLATION %{identity}O " + "(LC_COLLATE = %{collate}L," + " LC_CTYPE = %{ctype}L)", 0); + + append_object_object(stmt, "identity", + new_objtree_for_qualname(colForm->collnamespace, + NameStr(colForm->collname))); + append_string_object(stmt, "collate", NameStr(colForm->collcollate)); + append_string_object(stmt, "ctype", NameStr(colForm->collctype)); + + ReleaseSysCache(colTup); + + return stmt; +} + +static ObjTree * deparse_DefineStmt_Operator(Oid objectId, DefineStmt *define) { HeapTuple oprTup; @@ -718,6 +745,10 @@ deparse_DefineStmt(Oid objectId, Node *parsetree) switch (define->kind) { + case OBJECT_COLLATION: + defStmt = deparse_DefineStmt_Collation(objectId, define); + break; + case OBJECT_OPERATOR: defStmt = deparse_DefineStmt_Operator(objectId, define); break; @@ -729,7 +760,6 @@ deparse_DefineStmt(Oid objectId, Node *parsetree) case OBJECT_TSDICTIONARY: case OBJECT_TSTEMPLATE: case OBJECT_TSCONFIGURATION: - case OBJECT_COLLATION: elog(ERROR, "unsupported object kind"); return NULL; } -- 1.9.1