TABLE_CATALOG
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varchar(512)
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utf8_general_ci
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TABLE_SCHEMA
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varchar(64)
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utf8_general_ci
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TABLE_NAME
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varchar(64)
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utf8_general_ci
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COLUMN_NAME
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varchar(64)
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utf8_general_ci
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ORDINAL_POSITION
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bigint(21)
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COLUMN_DEFAULT
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longtext
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utf8_general_ci
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IS_NULLABLE
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varchar(3)
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utf8_general_ci
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DATA_TYPE
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varchar(64)
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utf8_general_ci
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CHARACTER_MAXIMUM_LENGTH
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bigint(21)
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CHARACTER_OCTET_LENGTH
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bigint(21)
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NUMERIC_PRECISION
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bigint(21)
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NUMERIC_SCALE
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bigint(21)
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DATETIME_PRECISION
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bigint(21)
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CHARACTER_SET_NAME
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varchar(32)
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utf8_general_ci
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COLLATION_NAME
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varchar(32)
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utf8_general_ci
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浏览不相关的值
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COLUMN_TYPE
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longtext
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utf8_general_ci
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COLUMN_KEY
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varchar(3)
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utf8_general_ci
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EXTRA
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varchar(30)
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utf8_general_ci
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PRIVILEGES
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varchar(80)
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utf8_general_ci
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COLUMN_COMMENT
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varchar(1024)
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utf8_general_ci
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IS_GENERATED
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varchar(6)
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utf8_general_ci
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GENERATION_EXPRESSION
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longtext
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utf8_general_ci
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