Remove "convert 'blah' using conversion_name" facility, because if it

produces text it is an encoding hole and if not it's incompatible
with the spec, whatever the spec means (which we're not sure about anyway).

1 files changed, 0 insertions, 130 deletions

diff --git a/src/test/regress/sql/conversion.sql b/src/test/regress/sql/conversion.sql
index be5c8628f55..99a9178315e 100644
--- a/src/test/regress/sql/conversion.sql
+++ b/src/test/regress/sql/conversion.sql
@@ -28,394 +28,264 @@ DROP CONVERSION mydef;
 --
 -- make sure all pre-defined conversions are fine.
 -- SQL_ASCII --> MULE_INTERNAL
-SELECT CONVERT('foo' USING ascii_to_mic);
 SELECT CONVERT('foo', 'SQL_ASCII', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> SQL_ASCII
-SELECT CONVERT('foo' USING mic_to_ascii);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'SQL_ASCII');
 -- KOI8R --> MULE_INTERNAL
-SELECT CONVERT('foo' USING koi8_r_to_mic);
 SELECT CONVERT('foo', 'KOI8R', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> KOI8R
-SELECT CONVERT('foo' USING mic_to_koi8_r);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'KOI8R');
 -- ISO-8859-5 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING iso_8859_5_to_mic);
 SELECT CONVERT('foo', 'ISO-8859-5', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> ISO-8859-5
-SELECT CONVERT('foo' USING mic_to_iso_8859_5);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'ISO-8859-5');
 -- WIN1251 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING windows_1251_to_mic);
 SELECT CONVERT('foo', 'WIN1251', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> WIN1251
-SELECT CONVERT('foo' USING mic_to_windows_1251);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'WIN1251');
 -- WIN866 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING windows_866_to_mic);
 SELECT CONVERT('foo', 'WIN866', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> WIN866
-SELECT CONVERT('foo' USING mic_to_windows_866);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'WIN866');
 -- KOI8R --> WIN1251
-SELECT CONVERT('foo' USING koi8_r_to_windows_1251);
 SELECT CONVERT('foo', 'KOI8R', 'WIN1251');
 -- WIN1251 --> KOI8R
-SELECT CONVERT('foo' USING windows_1251_to_koi8_r);
 SELECT CONVERT('foo', 'WIN1251', 'KOI8R');
 -- KOI8R --> WIN866
-SELECT CONVERT('foo' USING koi8_r_to_windows_866);
 SELECT CONVERT('foo', 'KOI8R', 'WIN866');
 -- WIN866 --> KOI8R
-SELECT CONVERT('foo' USING windows_866_to_koi8_r);
 SELECT CONVERT('foo', 'WIN866', 'KOI8R');
 -- WIN866 --> WIN1251
-SELECT CONVERT('foo' USING windows_866_to_windows_1251);
 SELECT CONVERT('foo', 'WIN866', 'WIN1251');
 -- WIN1251 --> WIN866
-SELECT CONVERT('foo' USING windows_1251_to_windows_866);
 SELECT CONVERT('foo', 'WIN1251', 'WIN866');
 -- ISO-8859-5 --> KOI8R
-SELECT CONVERT('foo' USING iso_8859_5_to_koi8_r);
 SELECT CONVERT('foo', 'ISO-8859-5', 'KOI8R');
 -- KOI8R --> ISO-8859-5
-SELECT CONVERT('foo' USING koi8_r_to_iso_8859_5);
 SELECT CONVERT('foo', 'KOI8R', 'ISO-8859-5');
 -- ISO-8859-5 --> WIN1251
-SELECT CONVERT('foo' USING iso_8859_5_to_windows_1251);
 SELECT CONVERT('foo', 'ISO-8859-5', 'WIN1251');
 -- WIN1251 --> ISO-8859-5
-SELECT CONVERT('foo' USING windows_1251_to_iso_8859_5);
 SELECT CONVERT('foo', 'WIN1251', 'ISO-8859-5');
 -- ISO-8859-5 --> WIN866
-SELECT CONVERT('foo' USING iso_8859_5_to_windows_866);
 SELECT CONVERT('foo', 'ISO-8859-5', 'WIN866');
 -- WIN866 --> ISO-8859-5
-SELECT CONVERT('foo' USING windows_866_to_iso_8859_5);
 SELECT CONVERT('foo', 'WIN866', 'ISO-8859-5');
 -- EUC_CN --> MULE_INTERNAL
-SELECT CONVERT('foo' USING euc_cn_to_mic);
 SELECT CONVERT('foo', 'EUC_CN', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> EUC_CN
-SELECT CONVERT('foo' USING mic_to_euc_cn);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_CN');
 -- EUC_JP --> SJIS
-SELECT CONVERT('foo' USING euc_jp_to_sjis);
 SELECT CONVERT('foo', 'EUC_JP', 'SJIS');
 -- SJIS --> EUC_JP
-SELECT CONVERT('foo' USING sjis_to_euc_jp);
 SELECT CONVERT('foo', 'SJIS', 'EUC_JP');
 -- EUC_JP --> MULE_INTERNAL
-SELECT CONVERT('foo' USING euc_jp_to_mic);
 SELECT CONVERT('foo', 'EUC_JP', 'MULE_INTERNAL');
 -- SJIS --> MULE_INTERNAL
-SELECT CONVERT('foo' USING sjis_to_mic);
 SELECT CONVERT('foo', 'SJIS', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> EUC_JP
-SELECT CONVERT('foo' USING mic_to_euc_jp);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_JP');
 -- MULE_INTERNAL --> SJIS
-SELECT CONVERT('foo' USING mic_to_sjis);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'SJIS');
 -- EUC_KR --> MULE_INTERNAL
-SELECT CONVERT('foo' USING euc_kr_to_mic);
 SELECT CONVERT('foo', 'EUC_KR', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> EUC_KR
-SELECT CONVERT('foo' USING mic_to_euc_kr);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_KR');
 -- EUC_TW --> BIG5
-SELECT CONVERT('foo' USING euc_tw_to_big5);
 SELECT CONVERT('foo', 'EUC_TW', 'BIG5');
 -- BIG5 --> EUC_TW
-SELECT CONVERT('foo' USING big5_to_euc_tw);
 SELECT CONVERT('foo', 'BIG5', 'EUC_TW');
 -- EUC_TW --> MULE_INTERNAL
-SELECT CONVERT('foo' USING euc_tw_to_mic);
 SELECT CONVERT('foo', 'EUC_TW', 'MULE_INTERNAL');
 -- BIG5 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING big5_to_mic);
 SELECT CONVERT('foo', 'BIG5', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> EUC_TW
-SELECT CONVERT('foo' USING mic_to_euc_tw);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'EUC_TW');
 -- MULE_INTERNAL --> BIG5
-SELECT CONVERT('foo' USING mic_to_big5);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'BIG5');
 -- LATIN2 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING iso_8859_2_to_mic);
 SELECT CONVERT('foo', 'LATIN2', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> LATIN2
-SELECT CONVERT('foo' USING mic_to_iso_8859_2);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'LATIN2');
 -- WIN1250 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING windows_1250_to_mic);
 SELECT CONVERT('foo', 'WIN1250', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> WIN1250
-SELECT CONVERT('foo' USING mic_to_windows_1250);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'WIN1250');
 -- LATIN2 --> WIN1250
-SELECT CONVERT('foo' USING iso_8859_2_to_windows_1250);
 SELECT CONVERT('foo', 'LATIN2', 'WIN1250');
 -- WIN1250 --> LATIN2
-SELECT CONVERT('foo' USING windows_1250_to_iso_8859_2);
 SELECT CONVERT('foo', 'WIN1250', 'LATIN2');
 -- LATIN1 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING iso_8859_1_to_mic);
 SELECT CONVERT('foo', 'LATIN1', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> LATIN1
-SELECT CONVERT('foo' USING mic_to_iso_8859_1);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'LATIN1');
 -- LATIN3 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING iso_8859_3_to_mic);
 SELECT CONVERT('foo', 'LATIN3', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> LATIN3
-SELECT CONVERT('foo' USING mic_to_iso_8859_3);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'LATIN3');
 -- LATIN4 --> MULE_INTERNAL
-SELECT CONVERT('foo' USING iso_8859_4_to_mic);
 SELECT CONVERT('foo', 'LATIN4', 'MULE_INTERNAL');
 -- MULE_INTERNAL --> LATIN4
-SELECT CONVERT('foo' USING mic_to_iso_8859_4);
 SELECT CONVERT('foo', 'MULE_INTERNAL', 'LATIN4');
 -- SQL_ASCII --> UTF8
-SELECT CONVERT('foo' USING ascii_to_utf8);
 SELECT CONVERT('foo', 'SQL_ASCII', 'UTF8');
 -- UTF8 --> SQL_ASCII
-SELECT CONVERT('foo' USING utf8_to_ascii);
 SELECT CONVERT('foo', 'UTF8', 'SQL_ASCII');
 -- BIG5 --> UTF8
-SELECT CONVERT('foo' USING big5_to_utf8);
 SELECT CONVERT('foo', 'BIG5', 'UTF8');
 -- UTF8 --> BIG5
-SELECT CONVERT('foo' USING utf8_to_big5);
 SELECT CONVERT('foo', 'UTF8', 'BIG5');
 -- UTF8 --> KOI8R
-SELECT CONVERT('foo' USING utf8_to_koi8_r);
 SELECT CONVERT('foo', 'UTF8', 'KOI8R');
 -- KOI8R --> UTF8
-SELECT CONVERT('foo' USING koi8_r_to_utf8);
 SELECT CONVERT('foo', 'KOI8R', 'UTF8');
 -- UTF8 --> WIN1251
-SELECT CONVERT('foo' USING utf8_to_windows_1251);
 SELECT CONVERT('foo', 'UTF8', 'WIN1251');
 -- WIN1251 --> UTF8
-SELECT CONVERT('foo' USING windows_1251_to_utf8);
 SELECT CONVERT('foo', 'WIN1251', 'UTF8');
 -- UTF8 --> WIN1252
-SELECT CONVERT('foo' USING utf8_to_windows_1252);
 SELECT CONVERT('foo', 'UTF8', 'WIN1252');
 -- WIN1252 --> UTF8
-SELECT CONVERT('foo' USING windows_1252_to_utf8);
 SELECT CONVERT('foo', 'WIN1252', 'UTF8');
 -- UTF8 --> WIN866
-SELECT CONVERT('foo' USING utf8_to_windows_866);
 SELECT CONVERT('foo', 'UTF8', 'WIN866');
 -- WIN866 --> UTF8
-SELECT CONVERT('foo' USING windows_866_to_utf8);
 SELECT CONVERT('foo', 'WIN866', 'UTF8');
 -- EUC_CN --> UTF8
-SELECT CONVERT('foo' USING euc_cn_to_utf8);
 SELECT CONVERT('foo', 'EUC_CN', 'UTF8');
 -- UTF8 --> EUC_CN
-SELECT CONVERT('foo' USING utf8_to_euc_cn);
 SELECT CONVERT('foo', 'UTF8', 'EUC_CN');
 -- EUC_JP --> UTF8
-SELECT CONVERT('foo' USING euc_jp_to_utf8);
 SELECT CONVERT('foo', 'EUC_JP', 'UTF8');
 -- UTF8 --> EUC_JP
-SELECT CONVERT('foo' USING utf8_to_euc_jp);
 SELECT CONVERT('foo', 'UTF8', 'EUC_JP');
 -- EUC_KR --> UTF8
-SELECT CONVERT('foo' USING euc_kr_to_utf8);
 SELECT CONVERT('foo', 'EUC_KR', 'UTF8');
 -- UTF8 --> EUC_KR
-SELECT CONVERT('foo' USING utf8_to_euc_kr);
 SELECT CONVERT('foo', 'UTF8', 'EUC_KR');
 -- EUC_TW --> UTF8
-SELECT CONVERT('foo' USING euc_tw_to_utf8);
 SELECT CONVERT('foo', 'EUC_TW', 'UTF8');
 -- UTF8 --> EUC_TW
-SELECT CONVERT('foo' USING utf8_to_euc_tw);
 SELECT CONVERT('foo', 'UTF8', 'EUC_TW');
 -- GB18030 --> UTF8
-SELECT CONVERT('foo' USING gb18030_to_utf8);
 SELECT CONVERT('foo', 'GB18030', 'UTF8');
 -- UTF8 --> GB18030
-SELECT CONVERT('foo' USING utf8_to_gb18030);
 SELECT CONVERT('foo', 'UTF8', 'GB18030');
 -- GBK --> UTF8
-SELECT CONVERT('foo' USING gbk_to_utf8);
 SELECT CONVERT('foo', 'GBK', 'UTF8');
 -- UTF8 --> GBK
-SELECT CONVERT('foo' USING utf8_to_gbk);
 SELECT CONVERT('foo', 'UTF8', 'GBK');
 -- UTF8 --> LATIN2
-SELECT CONVERT('foo' USING utf8_to_iso_8859_2);
 SELECT CONVERT('foo', 'UTF8', 'LATIN2');
 -- LATIN2 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_2_to_utf8);
 SELECT CONVERT('foo', 'LATIN2', 'UTF8');
 -- UTF8 --> LATIN3
-SELECT CONVERT('foo' USING utf8_to_iso_8859_3);
 SELECT CONVERT('foo', 'UTF8', 'LATIN3');
 -- LATIN3 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_3_to_utf8);
 SELECT CONVERT('foo', 'LATIN3', 'UTF8');
 -- UTF8 --> LATIN4
-SELECT CONVERT('foo' USING utf8_to_iso_8859_4);
 SELECT CONVERT('foo', 'UTF8', 'LATIN4');
 -- LATIN4 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_4_to_utf8);
 SELECT CONVERT('foo', 'LATIN4', 'UTF8');
 -- UTF8 --> LATIN5
-SELECT CONVERT('foo' USING utf8_to_iso_8859_9);
 SELECT CONVERT('foo', 'UTF8', 'LATIN5');
 -- LATIN5 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_9_to_utf8);
 SELECT CONVERT('foo', 'LATIN5', 'UTF8');
 -- UTF8 --> LATIN6
-SELECT CONVERT('foo' USING utf8_to_iso_8859_10);
 SELECT CONVERT('foo', 'UTF8', 'LATIN6');
 -- LATIN6 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_10_to_utf8);
 SELECT CONVERT('foo', 'LATIN6', 'UTF8');
 -- UTF8 --> LATIN7
-SELECT CONVERT('foo' USING utf8_to_iso_8859_13);
 SELECT CONVERT('foo', 'UTF8', 'LATIN7');
 -- LATIN7 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_13_to_utf8);
 SELECT CONVERT('foo', 'LATIN7', 'UTF8');
 -- UTF8 --> LATIN8
-SELECT CONVERT('foo' USING utf8_to_iso_8859_14);
 SELECT CONVERT('foo', 'UTF8', 'LATIN8');
 -- LATIN8 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_14_to_utf8);
 SELECT CONVERT('foo', 'LATIN8', 'UTF8');
 -- UTF8 --> LATIN9
-SELECT CONVERT('foo' USING utf8_to_iso_8859_15);
 SELECT CONVERT('foo', 'UTF8', 'LATIN9');
 -- LATIN9 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_15_to_utf8);
 SELECT CONVERT('foo', 'LATIN9', 'UTF8');
 -- UTF8 --> LATIN10
-SELECT CONVERT('foo' USING utf8_to_iso_8859_16);
 SELECT CONVERT('foo', 'UTF8', 'LATIN10');
 -- LATIN10 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_16_to_utf8);
 SELECT CONVERT('foo', 'LATIN10', 'UTF8');
 -- UTF8 --> ISO-8859-5
-SELECT CONVERT('foo' USING utf8_to_iso_8859_5);
 SELECT CONVERT('foo', 'UTF8', 'ISO-8859-5');
 -- ISO-8859-5 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_5_to_utf8);
 SELECT CONVERT('foo', 'ISO-8859-5', 'UTF8');
 -- UTF8 --> ISO-8859-6
-SELECT CONVERT('foo' USING utf8_to_iso_8859_6);
 SELECT CONVERT('foo', 'UTF8', 'ISO-8859-6');
 -- ISO-8859-6 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_6_to_utf8);
 SELECT CONVERT('foo', 'ISO-8859-6', 'UTF8');
 -- UTF8 --> ISO-8859-7
-SELECT CONVERT('foo' USING utf8_to_iso_8859_7);
 SELECT CONVERT('foo', 'UTF8', 'ISO-8859-7');
 -- ISO-8859-7 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_7_to_utf8);
 SELECT CONVERT('foo', 'ISO-8859-7', 'UTF8');
 -- UTF8 --> ISO-8859-8
-SELECT CONVERT('foo' USING utf8_to_iso_8859_8);
 SELECT CONVERT('foo', 'UTF8', 'ISO-8859-8');
 -- ISO-8859-8 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_8_to_utf8);
 SELECT CONVERT('foo', 'ISO-8859-8', 'UTF8');
 -- LATIN1 --> UTF8
-SELECT CONVERT('foo' USING iso_8859_1_to_utf8);
 SELECT CONVERT('foo', 'LATIN1', 'UTF8');
 -- UTF8 --> LATIN1
-SELECT CONVERT('foo' USING utf8_to_iso_8859_1);
 SELECT CONVERT('foo', 'UTF8', 'LATIN1');
 -- JOHAB --> UTF8
-SELECT CONVERT('foo' USING johab_to_utf8);
 SELECT CONVERT('foo', 'JOHAB', 'UTF8');
 -- UTF8 --> JOHAB
-SELECT CONVERT('foo' USING utf8_to_johab);
 SELECT CONVERT('foo', 'UTF8', 'JOHAB');
 -- SJIS --> UTF8
-SELECT CONVERT('foo' USING sjis_to_utf8);
 SELECT CONVERT('foo', 'SJIS', 'UTF8');
 -- UTF8 --> SJIS
-SELECT CONVERT('foo' USING utf8_to_sjis);
 SELECT CONVERT('foo', 'UTF8', 'SJIS');
 -- WIN1258 --> UTF8
-SELECT CONVERT('foo' USING windows_1258_to_utf8);
 SELECT CONVERT('foo', 'WIN1258', 'UTF8');
 -- UTF8 --> WIN1258
-SELECT CONVERT('foo' USING utf8_to_windows_1258);
 SELECT CONVERT('foo', 'UTF8', 'WIN1258');
 -- UHC --> UTF8
-SELECT CONVERT('foo' USING uhc_to_utf8);
 SELECT CONVERT('foo', 'UHC', 'UTF8');
 -- UTF8 --> UHC
-SELECT CONVERT('foo' USING utf8_to_uhc);
 SELECT CONVERT('foo', 'UTF8', 'UHC');
 -- UTF8 --> WIN1250
-SELECT CONVERT('foo' USING utf8_to_windows_1250);
 SELECT CONVERT('foo', 'UTF8', 'WIN1250');
 -- WIN1250 --> UTF8
-SELECT CONVERT('foo' USING windows_1250_to_utf8);
 SELECT CONVERT('foo', 'WIN1250', 'UTF8');
 -- UTF8 --> WIN1256
-SELECT CONVERT('foo' USING utf8_to_windows_1256);
 SELECT CONVERT('foo', 'UTF8', 'WIN1256');
 -- WIN1256 --> UTF8
-SELECT CONVERT('foo' USING windows_1256_to_utf8);
 SELECT CONVERT('foo', 'WIN1256', 'UTF8');
 -- UTF8 --> WIN874
-SELECT CONVERT('foo' USING utf8_to_windows_874);
 SELECT CONVERT('foo', 'UTF8', 'WIN874');
 -- WIN874 --> UTF8
-SELECT CONVERT('foo' USING windows_874_to_utf8);
 SELECT CONVERT('foo', 'WIN874', 'UTF8');
 -- UTF8 --> WIN1253
-SELECT CONVERT('foo' USING utf8_to_windows_1253);
 SELECT CONVERT('foo', 'UTF8', 'WIN1253');
 -- WIN1253 --> UTF8
-SELECT CONVERT('foo' USING windows_1253_to_utf8);
 SELECT CONVERT('foo', 'WIN1253', 'UTF8');
 -- UTF8 --> WIN1254
-SELECT CONVERT('foo' USING utf8_to_windows_1254);
 SELECT CONVERT('foo', 'UTF8', 'WIN1254');
 -- WIN1254 --> UTF8
-SELECT CONVERT('foo' USING windows_1254_to_utf8);
 SELECT CONVERT('foo', 'WIN1254', 'UTF8');
 -- UTF8 --> WIN1255
-SELECT CONVERT('foo' USING utf8_to_windows_1255);
 SELECT CONVERT('foo', 'UTF8', 'WIN1255');
 -- WIN1255 --> UTF8
-SELECT CONVERT('foo' USING windows_1255_to_utf8);
 SELECT CONVERT('foo', 'WIN1255', 'UTF8');
 -- UTF8 --> WIN1257
-SELECT CONVERT('foo' USING utf8_to_windows_1257);
 SELECT CONVERT('foo', 'UTF8', 'WIN1257');
 -- WIN1257 --> UTF8
-SELECT CONVERT('foo' USING windows_1257_to_utf8);
 SELECT CONVERT('foo', 'WIN1257', 'UTF8');
 -- UTF8 --> EUC_JIS_2004
-SELECT CONVERT('foo' USING utf8_to_euc_jis_2004);
 SELECT CONVERT('foo', 'UTF8', 'EUC_JIS_2004');
 -- EUC_JIS_2004 --> UTF8
-SELECT CONVERT('foo' USING euc_jis_2004_to_utf8);
 SELECT CONVERT('foo', 'EUC_JIS_2004', 'UTF8');
 -- UTF8 --> SHIFT_JIS_2004
-SELECT CONVERT('foo' USING utf8_to_euc_jis_2004);
 SELECT CONVERT('foo', 'UTF8', 'SHIFT_JIS_2004');
 -- SHIFT_JIS_2004 --> UTF8
-SELECT CONVERT('foo' USING shift_jis_2004_to_utf8);
 SELECT CONVERT('foo', 'SHIFT_JIS_2004', 'UTF8');
 -- EUC_JIS_2004 --> SHIFT_JIS_2004
-SELECT CONVERT('foo' USING euc_jis_2004_to_shift_jis_2004);
 SELECT CONVERT('foo', 'EUC_JIS_2004', 'SHIFT_JIS_2004');
 -- SHIFT_JIS_2004 --> EUC_JIS_2004
-SELECT CONVERT('foo' USING shift_jis_2004_to_euc_jis_2004);
 SELECT CONVERT('foo', 'SHIFT_JIS_2004', 'EUC_JIS_2004');
 --
 -- return to the super user