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TiDB Limitations
This document describes the common usage limitations of TiDB, including the maximum identifier length and the maximum number of supported databases, tables, indexes, partitioned tables, and sequences.
Limitations on identifier length
Identifier type
Maximum length (number of characters allowed)
Database
64
Table
64
Column
64
Index
64
View
64
Sequence
64
Limitations on the total number of databases, tables, views, and connections