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| void  | set_char_utf8mb4 (PSI_field *, const char *, unsigned int) noexcept | 
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| void  | get_char_utf8mb4 (PSI_field *, char *, unsigned int *) noexcept | 
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| void  | read_key_string (PSI_key_reader *, PSI_plugin_key_string *, int) noexcept | 
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| bool  | match_key_string (bool, const char *, unsigned int, PSI_plugin_key_string *) noexcept | 
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| void  | get_varchar_utf8mb4 (PSI_field *, char *, unsigned int *) noexcept | 
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| void  | set_varchar_utf8mb4 (PSI_field *, const char *) noexcept | 
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| void  | set_varchar_utf8mb4_len (PSI_field *, const char *, unsigned int) noexcept | 
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