MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF

The array my_unicase_pages_unicode520[7] erroneously mapped to plane06
instead of plane07.

mysql-test/include/ctype_unicode_casefold_bmp.inc

@@ -0,0 +1,23 @@
+--source include/have_utf32.inc
+--source include/have_ucs2.inc
+--source include/have_sequence.inc
+
+EXECUTE IMMEDIATE SFORMAT('
+CREATE VIEW v_bmp AS
+SELECT
+  seq AS codepoint,
+  LPAD(HEX(seq),4,''0'') AS codepoint_hex4,
+  CONVERT(CHAR(seq USING utf32) USING {}) COLLATE {} AS c
+FROM
+  seq_0_to_65535', @@character_set_connection, @@collation_connection);
+
+SELECT COLLATION(c) FROM v_bmp LIMIT 1;
+
+SELECT
+  codepoint_hex4,
+  HEX(CAST(LOWER(c) AS CHAR CHARACTER SET ucs2)),
+  HEX(CAST(UPPER(c) AS CHAR CHARACTER SET ucs2))
+FROM v_bmp
+WHERE BINARY(c)<>BINARY(LOWER(c)) OR BINARY(c)<>BINARY(UPPER(c));
+
+DROP VIEW v_bmp;

mysql-test/include/ctype_unicode_casefold_supplementary.inc

@@ -0,0 +1,22 @@
+--source include/have_utf32.inc
+--source include/have_sequence.inc
+
+EXECUTE IMMEDIATE SFORMAT('
+CREATE VIEW v_supplementary AS
+SELECT
+  seq AS codepoint,
+  LPAD(HEX(seq),8,''0'') AS codepoint_hex8,
+  CONVERT(CHAR(seq USING utf32) USING {}) COLLATE {} AS c
+FROM
+  seq_65536_to_1114111', @@character_set_connection, @@collation_connection);
+
+SELECT COLLATION(c) FROM v_supplementary LIMIT 1;
+
+SELECT
+  codepoint_hex8,
+  HEX(CAST(LOWER(c) AS CHAR CHARACTER SET utf32)),
+  HEX(CAST(UPPER(c) AS CHAR CHARACTER SET utf32))
+FROM v_supplementary
+WHERE BINARY(c)<>BINARY(LOWER(c)) OR BINARY(c)<>BINARY(UPPER(c));
+
+DROP VIEW v_supplementary;

mysql-test/include/ctype_unicode_ws_bmp.inc

@@ -0,0 +1,26 @@
+--source include/have_utf32.inc
+--source include/have_sequence.inc
+
+EXECUTE IMMEDIATE SFORMAT('
+CREATE VIEW v_bmp AS
+SELECT
+  seq AS codepoint,
+  LPAD(HEX(seq),4,''0'') AS codepoint_hex4,
+  CONVERT(CHAR(seq USING utf32) USING {}) COLLATE {} AS c
+FROM
+  seq_0_to_65535', @@character_set_connection, @@collation_connection);
+
+SELECT COLLATION(c) FROM v_bmp LIMIT 1;
+
+SELECT HEX(codepoint) FROM v_bmp WHERE HEX(WEIGHT_STRING(c))='FFFD';
+
+SELECT
+  SUM(codepoint_hex4=HEX(WEIGHT_STRING(c))) AS count_bmp_weight_is_codepoint,
+  SUM(codepoint_hex4<>HEX(WEIGHT_STRING(c))) AS count_bmp_weight_is_not_codepoint
+FROM v_bmp;
+
+SELECT codepoint_hex4,HEX(WEIGHT_STRING(c))
+FROM v_bmp
+WHERE codepoint_hex4<>HEX(WEIGHT_STRING(c));
+
+DROP VIEW v_bmp;

mysql-test/include/ctype_unicode_ws_supplementary.inc

@@ -0,0 +1,19 @@
+--source include/have_utf32.inc
+--source include/have_sequence.inc
+
+EXECUTE IMMEDIATE SFORMAT('
+CREATE VIEW v_supplementary AS
+SELECT
+  seq AS codepoint,
+  CONVERT(CHAR(seq USING utf32) USING {}) COLLATE {} AS c
+FROM
+  seq_65536_to_1114111', @@character_set_connection, @@collation_connection);
+
+SELECT COLLATION(c) FROM v_supplementary LIMIT 1;
+
+SELECT
+  SUM(HEX(WEIGHT_STRING(c))<>'FFFD'),
+  SUM(HEX(WEIGHT_STRING(c))='FFFD')
+FROM v_supplementary;
+
+DROP VIEW v_supplementary;

mysql-test/main/ctype_ucs2_general_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET collation_connection=ucs2_general_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_ucs2_general_ci_ws.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET @@collation_connection=ucs2_general_ci;
+--source include/ctype_unicode_ws_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_ucs2_general_mysql500_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET @@collation_connection=ucs2_general_mysql500_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_ucs2_general_mysql500_ci_ws.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET @@collation_connection=ucs2_general_mysql500_ci;
+--source include/ctype_unicode_ws_bmp.inc
+
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_ucs2_turkish_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET @@collation_connection=ucs2_turkish_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_ucs2_unicode_520_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET @@collation_connection=ucs2_unicode_520_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_general_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_general_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_general_ci_ws.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_general_ci;
+--source include/ctype_unicode_ws_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_general_mysql500_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_general_mysql500_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_general_mysql500_ci_ws.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_general_mysql500_ci;
+--source include/ctype_unicode_ws_bmp.inc
+
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_turkish_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_turkish_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb3_unicode_520_ci_casefold.test

@@ -0,0 +1,14 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb3 COLLATE utf8mb3_unicode_520_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb4_general_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb4 COLLATE utf8mb4_general_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+--source include/ctype_unicode_casefold_supplementary.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb4_general_ci_ws.test

@@ -0,0 +1,16 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb4 COLLATE utf8mb4_general_ci;
+--source include/ctype_unicode_ws_bmp.inc
+--source include/ctype_unicode_ws_supplementary.inc
+
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb4_turkish_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb4 COLLATE utf8mb4_turkish_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+--source include/ctype_unicode_casefold_supplementary.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb4_unicode_520_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_520_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+--source include/ctype_unicode_casefold_supplementary.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

mysql-test/main/ctype_utf8mb4_unicode_ci_casefold.test

@@ -0,0 +1,15 @@
+--echo #
+--echo # Start of 10.7 tests
+--echo #
+
+--echo #
+--echo # MDEV-30716 Wrong casefolding in xxx_unicode_520_ci for U+0700..U+07FF
+--echo #
+
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
+--source include/ctype_unicode_casefold_bmp.inc
+--source include/ctype_unicode_casefold_supplementary.inc
+
+--echo #
+--echo # End of 10.7 tests
+--echo #

strings/ctype-utf8.c

@@ -4595,7 +4595,7 @@ static MY_UNICASE_CHARACTER u520p104[]={
 
 MY_UNICASE_CHARACTER *my_unicase_pages_unicode520[4352]=
 {
- u520p00, u520p01, u520p02, u520p03, u520p04, u520p05, plane06, plane06,
+ u520p00, u520p01, u520p02, u520p03, u520p04, u520p05, plane06, plane07,
     NULL,    NULL,    NULL,    NULL,    NULL,    NULL,    NULL,    NULL,
  u520p10,    NULL,    NULL,    NULL,    NULL,    NULL,    NULL,    NULL,
     NULL,    NULL,    NULL,    NULL,    NULL, u520p1D, u520p1E, u520p1F,