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class store_key :public Sql_alloc
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bool null_key; /* TRUE <=> the value of the key has a null part */
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enum store_key_result { STORE_KEY_OK, STORE_KEY_FATAL, STORE_KEY_CONV };
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store_key(THD *thd, Field *field_arg, char *ptr, char *null, uint length)
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if (field_arg->type() == MYSQL_TYPE_BLOB)