Implement DROP CONVERSION

Add regression test

1 files changed, 478 insertions, 0 deletions

diff --git a/src/test/regress/expected/conversion.out b/src/test/regress/expected/conversion.out
new file mode 100644
index 0000000000..d1b3cdfba8
--- /dev/null
+++ b/src/test/regress/expected/conversion.out
@@ -0,0 +1,478 @@
+--
+-- create user defined conversion
+--
+CREATE USER foo WITH NOCREATEDB NOCREATEUSER;
+SET SESSION AUTHORIZATION foo;
+CREATE CONVERSION myconv FOR 'LATIN1' TO 'UNICODE' FROM iso8859_1_to_utf8;
+--
+-- cannot make same name conversion in same schema
+--
+CREATE CONVERSION myconv FOR 'LATIN1' TO 'UNICODE' FROM iso8859_1_to_utf8;
+ERROR:  conversion name "myconv" already exists
+--
+-- create default conversion with qualified name
+--
+CREATE DEFAULT CONVERSION public.mydef FOR 'LATIN1' TO 'UNICODE' FROM iso8859_1_to_utf8;
+--
+-- cannot make default conversion with same shcema/for_encoding/to_encoding
+--
+CREATE DEFAULT CONVERSION public.mydef2 FOR 'LATIN1' TO 'UNICODE' FROM iso8859_1_to_utf8;
+ERROR:  default conversion for LATIN1 to UNICODE already exists
+--
+-- drop user defined conversion
+--
+DROP CONVERSION myconv;
+DROP CONVERSION mydef;
+--
+-- make sure all pre-defined conversions are fine.
+--
+-- UNICODE -> SQL_ASCII
+SELECT CONVERT('foo', 'UNICODE', 'SQL_ASCII');
+ convert 
+---------
+ foo
+(1 row)
+
+-- SQL_ASCII -> UNICODE
+SELECT CONVERT('foo', 'SQL_ASCII', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN1
+SELECT CONVERT('foo', 'UNICODE', 'LATIN1');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN1 -> UNICODE
+SELECT CONVERT('foo', 'LATIN1', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_JP -> UNICODE
+SELECT CONVERT('foo', 'EUC_JP', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> EUC_JP
+SELECT CONVERT('foo', 'UNICODE', 'EUC_JP');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_KR -> UNICODE
+SELECT CONVERT('foo', 'EUC_KR', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> EUC_KR
+SELECT CONVERT('foo', 'UNICODE', 'EUC_KR');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_CN -> UNICODE
+SELECT CONVERT('foo', 'EUC_CN', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> EUC_CN
+SELECT CONVERT('foo', 'UNICODE', 'EUC_CN');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_TW -> UNICODE
+SELECT CONVERT('foo', 'EUC_TW', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> EUC_TW
+SELECT CONVERT('foo', 'UNICODE', 'EUC_TW');
+ convert 
+---------
+ foo
+(1 row)
+
+-- SJIS -> UNICODE
+SELECT CONVERT('foo', 'SJIS', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> SJIS
+SELECT CONVERT('foo', 'UNICODE', 'SJIS');
+ convert 
+---------
+ foo
+(1 row)
+
+-- BIG5 -> UNICODE
+SELECT CONVERT('foo', 'BIG5', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> BIG5
+SELECT CONVERT('foo', 'UNICODE', 'BIG5');
+ convert 
+---------
+ foo
+(1 row)
+
+-- GBK -> UNICODE
+SELECT CONVERT('foo', 'GBK', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> GBK
+SELECT CONVERT('foo', 'UNICODE', 'GBK');
+ convert 
+---------
+ foo
+(1 row)
+
+-- GB18030 -> UNICODE
+SELECT CONVERT('foo', 'GB18030', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> GB18030
+SELECT CONVERT('foo', 'UNICODE', 'GB18030');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UHC -> UNICODE
+SELECT CONVERT('foo', 'UHC', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> UHC
+SELECT CONVERT('foo', 'UNICODE', 'UHC');
+ convert 
+---------
+ foo
+(1 row)
+
+-- JOHAB -> UNICODE
+SELECT CONVERT('foo', 'JOHAB', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> JOHAB
+SELECT CONVERT('foo', 'UNICODE', 'JOHAB');
+ convert 
+---------
+ foo
+(1 row)
+
+-- TCVN -> UNICODE
+SELECT CONVERT('foo', 'TCVN', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> TCVN
+SELECT CONVERT('foo', 'UNICODE', 'TCVN');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN2
+SELECT CONVERT('foo', 'UNICODE', 'LATIN2');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN2 -> UNICODE
+SELECT CONVERT('foo', 'LATIN2', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN3
+SELECT CONVERT('foo', 'UNICODE', 'LATIN3');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN3 -> UNICODE
+SELECT CONVERT('foo', 'LATIN3', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN4
+SELECT CONVERT('foo', 'UNICODE', 'LATIN4');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN4 -> UNICODE
+SELECT CONVERT('foo', 'LATIN4', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN5
+SELECT CONVERT('foo', 'UNICODE', 'LATIN5');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN5 -> UNICODE
+SELECT CONVERT('foo', 'LATIN5', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN6
+SELECT CONVERT('foo', 'UNICODE', 'LATIN6');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN6 -> UNICODE
+SELECT CONVERT('foo', 'LATIN6', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN7
+SELECT CONVERT('foo', 'UNICODE', 'LATIN7');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN7 -> UNICODE
+SELECT CONVERT('foo', 'LATIN7', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN8
+SELECT CONVERT('foo', 'UNICODE', 'LATIN8');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN8 -> UNICODE
+SELECT CONVERT('foo', 'LATIN8', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN9
+SELECT CONVERT('foo', 'UNICODE', 'LATIN9');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN9 -> UNICODE
+SELECT CONVERT('foo', 'LATIN9', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> LATIN10
+SELECT CONVERT('foo', 'UNICODE', 'LATIN10');
+ convert 
+---------
+ foo
+(1 row)
+
+-- LATIN10 -> UNICODE
+SELECT CONVERT('foo', 'LATIN10', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> ISO-8859-5
+SELECT CONVERT('foo', 'UNICODE', 'ISO-8859-5');
+ convert 
+---------
+ foo
+(1 row)
+
+-- ISO-8859-5 -> UNICODE
+SELECT CONVERT('foo', 'ISO-8859-5', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> ISO-8859-6
+SELECT CONVERT('foo', 'UNICODE', 'ISO-8859-6');
+ convert 
+---------
+ foo
+(1 row)
+
+-- ISO-8859-6 -> UNICODE
+SELECT CONVERT('foo', 'ISO-8859-6', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> ISO-8859-7
+SELECT CONVERT('foo', 'UNICODE', 'ISO-8859-7');
+ convert 
+---------
+ foo
+(1 row)
+
+-- ISO-8859-7 -> UNICODE
+SELECT CONVERT('foo', 'ISO-8859-7', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- UNICODE -> ISO-8859-8
+SELECT CONVERT('foo', 'UNICODE', 'ISO-8859-8');
+ convert 
+---------
+ foo
+(1 row)
+
+-- ISO-8859-8 -> UNICODE
+SELECT CONVERT('foo', 'ISO-8859-8', 'UNICODE');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_JP -> SJIS
+SELECT CONVERT('foo', 'EUC_JP', 'SJIS');
+ convert 
+---------
+ foo
+(1 row)
+
+-- SJIS -> EUC_JP
+SELECT CONVERT('foo', 'SJIS', 'EUC_JP');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_JP -> MULE_INTERNAL
+SELECT CONVERT('foo', 'EUC_JP', 'MULE_INTERNAL');
+ convert 
+---------
+ foo
+(1 row)
+
+-- SJIS -> MULE_INTERNAL
+SELECT CONVERT('foo', 'SJIS', 'MULE_INTERNAL');
+ convert 
+---------
+ foo
+(1 row)
+
+-- MULE_INTERNAL -> EUC_JP
+SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_JP');
+ convert 
+---------
+ foo
+(1 row)
+
+-- MULE_INTERNAL -> SJIS
+SELECT CONVERT('foo', 'MULE_INTERNAL', 'SJIS');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_TW -> BIG5
+SELECT CONVERT('foo', 'EUC_TW', 'BIG5');
+ convert 
+---------
+ foo
+(1 row)
+
+-- BIG5 -> EUC_TW
+SELECT CONVERT('foo', 'BIG5', 'EUC_TW');
+ convert 
+---------
+ foo
+(1 row)
+
+-- EUC_TW -> MULE_INTERNAL
+SELECT CONVERT('foo', 'EUC_TW', 'MULE_INTERNAL');
+ convert 
+---------
+ foo
+(1 row)
+
+-- BIG5 -> MULE_INTERNAL
+SELECT CONVERT('foo', 'BIG5', 'MULE_INTERNAL');
+ convert 
+---------
+ foo
+(1 row)
+
+-- MULE_INTERNAL -> EUC_TW
+SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_TW');
+ convert 
+---------
+ foo
+(1 row)
+
+-- MULE_INTERNAL -> BIG5
+SELECT CONVERT('foo', 'MULE_INTERNAL', 'BIG5');
+ convert 
+---------
+ foo
+(1 row)
+
+RESET SESSION AUTHORIZATION;
+DROP USER foo;