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Fix for Bug#34090350, Update mappings for utf8mb3 and utf8mb4 collations.
Change-Id: Ic6f142eb0ae7032e3bd247dc5a56b75d0f832d95
1 parent 66482e4 commit 82d524c

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-84
lines changed

5 files changed

+123
-84
lines changed

‎CHANGES‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -3,6 +3,8 @@
33

44
Version 8.0.30
55

6+
- Fix for Bug#34090350, Update mappings for utf8mb3 and utf8mb4 collations.
7+
68
- Fix for Bug#106880 (34022110), Outdated description in connection property 'rewriteBatchedStatements'.
79

810
- Fix for Bug#34082503, CONTRIBUTING.md contains broken links.

‎src/main/core-api/java/com/mysql/cj/CharsetMapping.java‎

Lines changed: 69 additions & 47 deletions
Original file line numberDiff line numberDiff line change
@@ -31,6 +31,7 @@
3131

3232
import java.nio.charset.Charset;
3333
import java.util.ArrayList;
34+
import java.util.Arrays;
3435
import java.util.Collections;
3536
import java.util.HashMap;
3637
import java.util.HashSet;
@@ -197,7 +198,8 @@ public class CharsetMapping {
197198
JAVA_ENCODING_UC_TO_MYSQL_CHARSET = Collections.unmodifiableMap(javaUcToMysqlCharsetMap);
198199
MULTIBYTE_ENCODINGS = Collections.unmodifiableSet(tempMultibyteEncodings);
199200

200-
// complete list of mysql collations and their corresponding character sets each element of collation[1]..collation[MAP_SIZE-1] must not be null
201+
// Complete list of MySQL collations and their corresponding character set.
202+
// Collations may have different default names in different MySQL versions, while the remaining are accepted as aliases.
201203
Collation[] collation = new Collation[MAP_SIZE];
202204
collation[1] = new Collation(1, "big5_chinese_ci", 1, MYSQL_CHARSET_NAME_big5);
203205
collation[2] = new Collation(2, "latin2_czech_cs", 0, MYSQL_CHARSET_NAME_latin2);
@@ -215,7 +217,7 @@ public class CharsetMapping {
215217
collation[14] = new Collation(14, "cp1251_bulgarian_ci", 0, MYSQL_CHARSET_NAME_cp1251);
216218
collation[15] = new Collation(15, "latin1_danish_ci", 0, MYSQL_CHARSET_NAME_latin1);
217219
collation[16] = new Collation(16, "hebrew_general_ci", 0, MYSQL_CHARSET_NAME_hebrew);
218-
220+
// 17
219221
collation[18] = new Collation(18, "tis620_thai_ci", 0, MYSQL_CHARSET_NAME_tis620);
220222
collation[19] = new Collation(19, "euckr_korean_ci", 0, MYSQL_CHARSET_NAME_euckr);
221223
collation[20] = new Collation(20, "latin7_estonian_cs", 0, MYSQL_CHARSET_NAME_latin7);
@@ -231,7 +233,7 @@ public class CharsetMapping {
231233
collation[30] = new Collation(30, "latin5_turkish_ci", 1, MYSQL_CHARSET_NAME_latin5);
232234
collation[31] = new Collation(31, "latin1_german2_ci", 0, MYSQL_CHARSET_NAME_latin1);
233235
collation[32] = new Collation(32, "armscii8_general_ci", 0, MYSQL_CHARSET_NAME_armscii8);
234-
collation[33] = new Collation(33, "utf8_general_ci", 1, MYSQL_CHARSET_NAME_utf8mb3);
236+
collation[33] = new Collation(33, new String[] { "utf8mb3_general_ci", "utf8_general_ci" }, 1, MYSQL_CHARSET_NAME_utf8mb3);
235237
collation[34] = new Collation(34, "cp1250_czech_cs", 0, MYSQL_CHARSET_NAME_cp1250);
236238
collation[35] = new Collation(35, "ucs2_general_ci", 1, MYSQL_CHARSET_NAME_ucs2);
237239
collation[36] = new Collation(36, "cp866_general_ci", 1, MYSQL_CHARSET_NAME_cp866);
@@ -274,14 +276,14 @@ public class CharsetMapping {
274276
collation[73] = new Collation(73, "keybcs2_bin", 0, MYSQL_CHARSET_NAME_keybcs2);
275277
collation[74] = new Collation(74, "koi8r_bin", 0, MYSQL_CHARSET_NAME_koi8r);
276278
collation[75] = new Collation(75, "koi8u_bin", 0, MYSQL_CHARSET_NAME_koi8u);
277-
collation[76] = new Collation(76, "utf8_tolower_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
279+
collation[76] = new Collation(76, new String[] { "utf8mb3_tolower_ci", "utf8_tolower_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
278280
collation[77] = new Collation(77, "latin2_bin", 0, MYSQL_CHARSET_NAME_latin2);
279281
collation[78] = new Collation(78, "latin5_bin", 0, MYSQL_CHARSET_NAME_latin5);
280282
collation[79] = new Collation(79, "latin7_bin", 0, MYSQL_CHARSET_NAME_latin7);
281283
collation[80] = new Collation(80, "cp850_bin", 0, MYSQL_CHARSET_NAME_cp850);
282284
collation[81] = new Collation(81, "cp852_bin", 0, MYSQL_CHARSET_NAME_cp852);
283285
collation[82] = new Collation(82, "swe7_bin", 0, MYSQL_CHARSET_NAME_swe7);
284-
collation[83] = new Collation(83, "utf8_bin", 0, MYSQL_CHARSET_NAME_utf8mb3);
286+
collation[83] = new Collation(83, new String[] { "utf8mb3_bin", "utf8_bin" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
285287
collation[84] = new Collation(84, "big5_bin", 0, MYSQL_CHARSET_NAME_big5);
286288
collation[85] = new Collation(85, "euckr_bin", 0, MYSQL_CHARSET_NAME_euckr);
287289
collation[86] = new Collation(86, "gb2312_bin", 0, MYSQL_CHARSET_NAME_gb2312);
@@ -298,7 +300,7 @@ public class CharsetMapping {
298300
collation[97] = new Collation(97, "eucjpms_japanese_ci", 1, MYSQL_CHARSET_NAME_eucjpms);
299301
collation[98] = new Collation(98, "eucjpms_bin", 0, MYSQL_CHARSET_NAME_eucjpms);
300302
collation[99] = new Collation(99, "cp1250_polish_ci", 0, MYSQL_CHARSET_NAME_cp1250);
301-
303+
// 100
302304
collation[101] = new Collation(101, "utf16_unicode_ci", 0, MYSQL_CHARSET_NAME_utf16);
303305
collation[102] = new Collation(102, "utf16_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf16);
304306
collation[103] = new Collation(103, "utf16_latvian_ci", 0, MYSQL_CHARSET_NAME_utf16);
@@ -323,7 +325,7 @@ public class CharsetMapping {
323325
collation[122] = new Collation(122, "utf16_croatian_ci", 0, MYSQL_CHARSET_NAME_utf16);
324326
collation[123] = new Collation(123, "utf16_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf16);
325327
collation[124] = new Collation(124, "utf16_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf16);
326-
328+
// 125..127
327329
collation[128] = new Collation(128, "ucs2_unicode_ci", 0, MYSQL_CHARSET_NAME_ucs2);
328330
collation[129] = new Collation(129, "ucs2_icelandic_ci", 0, MYSQL_CHARSET_NAME_ucs2);
329331
collation[130] = new Collation(130, "ucs2_latvian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
@@ -348,7 +350,7 @@ public class CharsetMapping {
348350
collation[149] = new Collation(149, "ucs2_croatian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
349351
collation[150] = new Collation(150, "ucs2_unicode_520_ci", 0, MYSQL_CHARSET_NAME_ucs2);
350352
collation[151] = new Collation(151, "ucs2_vietnamese_ci", 0, MYSQL_CHARSET_NAME_ucs2);
351-
353+
// 152..158
352354
collation[159] = new Collation(159, "ucs2_general_mysql500_ci", 0, MYSQL_CHARSET_NAME_ucs2);
353355
collation[160] = new Collation(160, "utf32_unicode_ci", 0, MYSQL_CHARSET_NAME_utf32);
354356
collation[161] = new Collation(161, "utf32_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf32);
@@ -374,33 +376,33 @@ public class CharsetMapping {
374376
collation[181] = new Collation(181, "utf32_croatian_ci", 0, MYSQL_CHARSET_NAME_utf32);
375377
collation[182] = new Collation(182, "utf32_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf32);
376378
collation[183] = new Collation(183, "utf32_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf32);
377-
378-
collation[192] = new Collation(192, "utf8_unicode_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
379-
collation[193] = new Collation(193, "utf8_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
380-
collation[194] = new Collation(194, "utf8_latvian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
381-
collation[195] = new Collation(195, "utf8_romanian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
382-
collation[196] = new Collation(196, "utf8_slovenian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
383-
collation[197] = new Collation(197, "utf8_polish_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
384-
collation[198] = new Collation(198, "utf8_estonian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
385-
collation[199] = new Collation(199, "utf8_spanish_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
386-
collation[200] = new Collation(200, "utf8_swedish_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
387-
collation[201] = new Collation(201, "utf8_turkish_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
388-
collation[202] = new Collation(202, "utf8_czech_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
389-
collation[203] = new Collation(203, "utf8_danish_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
390-
collation[204] = new Collation(204, "utf8_lithuanian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
391-
collation[205] = new Collation(205, "utf8_slovak_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
392-
collation[206] = new Collation(206, "utf8_spanish2_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
393-
collation[207] = new Collation(207, "utf8_roman_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
394-
collation[208] = new Collation(208, "utf8_persian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
395-
collation[209] = new Collation(209, "utf8_esperanto_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
396-
collation[210] = new Collation(210, "utf8_hungarian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
397-
collation[211] = new Collation(211, "utf8_sinhala_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
398-
collation[212] = new Collation(212, "utf8_german2_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
399-
collation[213] = new Collation(213, "utf8_croatian_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
400-
collation[214] = new Collation(214, "utf8_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
401-
collation[215] = new Collation(215, "utf8_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
402-
403-
collation[223] = new Collation(223, "utf8_general_mysql500_ci", 0, MYSQL_CHARSET_NAME_utf8mb3);
379+
// 184..191
380+
collation[192] = new Collation(192, new String[] { "utf8mb3_unicode_ci", "utf8_unicode_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
381+
collation[193] = new Collation(193, new String[] { "utf8mb3_icelandic_ci", "utf8_icelandic_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
382+
collation[194] = new Collation(194, new String[] { "utf8mb3_latvian_ci", "utf8_latvian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
383+
collation[195] = new Collation(195, new String[] { "utf8mb3_romanian_ci", "utf8_romanian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
384+
collation[196] = new Collation(196, new String[] { "utf8mb3_slovenian_ci", "utf8_slovenian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
385+
collation[197] = new Collation(197, new String[] { "utf8mb3_polish_ci", "utf8_polish_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
386+
collation[198] = new Collation(198, new String[] { "utf8mb3_estonian_ci", "utf8_estonian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
387+
collation[199] = new Collation(199, new String[] { "utf8mb3_spanish_ci", "utf8_spanish_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
388+
collation[200] = new Collation(200, new String[] { "utf8mb3_swedish_ci", "utf8_swedish_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
389+
collation[201] = new Collation(201, new String[] { "utf8mb3_turkish_ci", "utf8_turkish_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
390+
collation[202] = new Collation(202, new String[] { "utf8mb3_czech_ci", "utf8_czech_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
391+
collation[203] = new Collation(203, new String[] { "utf8mb3_danish_ci", "utf8_danish_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
392+
collation[204] = new Collation(204, new String[] { "utf8mb3_lithuanian_ci", "utf8_lithuanian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
393+
collation[205] = new Collation(205, new String[] { "utf8mb3_slovak_ci", "utf8_slovak_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
394+
collation[206] = new Collation(206, new String[] { "utf8mb3_spanish2_ci", "utf8_spanish2_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
395+
collation[207] = new Collation(207, new String[] { "utf8mb3_roman_ci", "utf8_roman_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
396+
collation[208] = new Collation(208, new String[] { "utf8mb3_persian_ci", "utf8_persian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
397+
collation[209] = new Collation(209, new String[] { "utf8mb3_esperanto_ci", "utf8_esperanto_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
398+
collation[210] = new Collation(210, new String[] { "utf8mb3_hungarian_ci", "utf8_hungarian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
399+
collation[211] = new Collation(211, new String[] { "utf8mb3_sinhala_ci", "utf8_sinhala_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
400+
collation[212] = new Collation(212, new String[] { "utf8mb3_german2_ci", "utf8_german2_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
401+
collation[213] = new Collation(213, new String[] { "utf8mb3_croatian_ci", "utf8_croatian_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
402+
collation[214] = new Collation(214, new String[] { "utf8mb3_unicode_520_ci", "utf8_unicode_520_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
403+
collation[215] = new Collation(215, new String[] { "utf8mb3_vietnamese_ci", "utf8_vietnamese_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
404+
// 216..222
405+
collation[223] = new Collation(223, new String[] { "utf8mb3_general_mysql500_ci", "utf8_general_mysql500_ci" }, 0, MYSQL_CHARSET_NAME_utf8mb3);
404406
collation[224] = new Collation(224, "utf8mb4_unicode_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
405407
collation[225] = new Collation(225, "utf8mb4_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
406408
collation[226] = new Collation(226, "utf8mb4_latvian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
@@ -428,7 +430,7 @@ public class CharsetMapping {
428430
collation[248] = new Collation(248, "gb18030_chinese_ci", 1, MYSQL_CHARSET_NAME_gb18030);
429431
collation[249] = new Collation(249, "gb18030_bin", 0, MYSQL_CHARSET_NAME_gb18030);
430432
collation[250] = new Collation(250, "gb18030_unicode_520_ci", 0, MYSQL_CHARSET_NAME_gb18030);
431-
433+
// 251..254
432434
collation[255] = new Collation(255, "utf8mb4_0900_ai_ci", 1, MYSQL_CHARSET_NAME_utf8mb4);
433435
collation[256] = new Collation(256, "utf8mb4_de_pb_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
434436
collation[257] = new Collation(257, "utf8mb4_is_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
@@ -446,11 +448,11 @@ public class CharsetMapping {
446448
collation[269] = new Collation(269, "utf8mb4_sk_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
447449
collation[270] = new Collation(270, "utf8mb4_es_trad_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
448450
collation[271] = new Collation(271, "utf8mb4_la_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
449-
451+
// 272
450452
collation[273] = new Collation(273, "utf8mb4_eo_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
451453
collation[274] = new Collation(274, "utf8mb4_hu_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
452454
collation[275] = new Collation(275, "utf8mb4_hr_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
453-
455+
// 276
454456
collation[277] = new Collation(277, "utf8mb4_vi_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
455457
collation[278] = new Collation(278, "utf8mb4_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
456458
collation[279] = new Collation(279, "utf8mb4_de_pb_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
@@ -469,20 +471,34 @@ public class CharsetMapping {
469471
collation[292] = new Collation(292, "utf8mb4_sk_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
470472
collation[293] = new Collation(293, "utf8mb4_es_trad_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
471473
collation[294] = new Collation(294, "utf8mb4_la_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
472-
474+
// 295
473475
collation[296] = new Collation(296, "utf8mb4_eo_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
474476
collation[297] = new Collation(297, "utf8mb4_hu_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
475477
collation[298] = new Collation(298, "utf8mb4_hr_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
476-
478+
// 299
477479
collation[300] = new Collation(300, "utf8mb4_vi_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
478-
480+
// 301,302
479481
collation[303] = new Collation(303, "utf8mb4_ja_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
480482
collation[304] = new Collation(304, "utf8mb4_ja_0900_as_cs_ks", 0, MYSQL_CHARSET_NAME_utf8mb4);
481483
collation[305] = new Collation(305, "utf8mb4_0900_as_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
482484
collation[306] = new Collation(306, "utf8mb4_ru_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
483485
collation[307] = new Collation(307, "utf8mb4_ru_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
484486
collation[308] = new Collation(308, "utf8mb4_zh_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
485487
collation[309] = new Collation(309, "utf8mb4_0900_bin", 0, MYSQL_CHARSET_NAME_utf8mb4);
488+
collation[310] = new Collation(310, "utf8mb4_nb_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
489+
collation[311] = new Collation(311, "utf8mb4_nb_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
490+
collation[312] = new Collation(312, "utf8mb4_nn_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
491+
collation[313] = new Collation(313, "utf8mb4_nn_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
492+
collation[314] = new Collation(314, "utf8mb4_sr_latn_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
493+
collation[315] = new Collation(315, "utf8mb4_sr_latn_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
494+
collation[316] = new Collation(316, "utf8mb4_bs_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
495+
collation[317] = new Collation(317, "utf8mb4_bs_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
496+
collation[318] = new Collation(318, "utf8mb4_bg_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
497+
collation[319] = new Collation(319, "utf8mb4_bg_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
498+
collation[320] = new Collation(320, "utf8mb4_gl_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
499+
collation[321] = new Collation(321, "utf8mb4_gl_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
500+
collation[322] = new Collation(322, "utf8mb4_mn_cyrl_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
501+
collation[323] = new Collation(323, "utf8mb4_mn_cyrl_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
486502

487503
COLLATION_INDEX_TO_COLLATION_NAME = new String[MAP_SIZE];
488504
Map<Integer, MysqlCharset> collationIndexToCharset = new TreeMap<>();
@@ -494,9 +510,11 @@ public class CharsetMapping {
494510
for (int i = 1; i < MAP_SIZE; i++) {
495511
Collation coll = collation[i];
496512
if (coll != null) {
497-
COLLATION_INDEX_TO_COLLATION_NAME[i] = coll.collationName;
513+
COLLATION_INDEX_TO_COLLATION_NAME[i] = coll.collationNames[0];
498514
collationIndexToCharset.put(i, coll.mysqlCharset);
499-
collationNameToCollationIndexMap.put(coll.collationName, i);
515+
for (String collationName : coll.collationNames) {
516+
collationNameToCollationIndexMap.put(collationName, i);
517+
}
500518
String charsetName = coll.mysqlCharset.charsetName;
501519

502520
if (!charsetNameToCollationIndexMap.containsKey(charsetName) || charsetNameToCollationPriorityMap.get(charsetName) < coll.priority) {
@@ -769,13 +787,17 @@ String getMatchingJavaEncoding(String javaEncoding) {
769787

770788
class Collation {
771789
public final int index;
772-
public final String collationName;
790+
public final String[] collationNames;
773791
public final int priority;
774792
public final MysqlCharset mysqlCharset;
775793

776794
public Collation(int index, String collationName, int priority, String charsetName) {
795+
this(index, new String[] { collationName }, priority, charsetName);
796+
}
797+
798+
public Collation(int index, String[] collationNames, int priority, String charsetName) {
777799
this.index = index;
778-
this.collationName = collationName;
800+
this.collationNames = collationNames;
779801
this.priority = priority;
780802
this.mysqlCharset = CharsetMapping.getStaticMysqlCharsetByName(charsetName);
781803
}
@@ -786,8 +808,8 @@ public String toString() {
786808
asString.append("[");
787809
asString.append("index=");
788810
asString.append(this.index);
789-
asString.append(",collationName=");
790-
asString.append(this.collationName);
811+
asString.append(",collationNames=");
812+
asString.append(Arrays.toString(this.collationNames));
791813
asString.append(",charsetName=");
792814
asString.append(this.mysqlCharset.charsetName);
793815
asString.append(",javaCharsetName=");

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