HarperDB Limits

This document outlines limitations of HarperDB.

Schema Naming Restrictions

Case Sensitivity

HarperDB schema metadata (schema names, table names, and attribute names) are case sensitive. Meaning schemas, tables, and attributes can differ only by the case of their characters.

 

Restrictions on Schema Metadata Names

HarperDB schema metadata (schema names, table names, and attribute names) cannot contain the following characters:

/`

Additionally, they cannot contain the first 31 non-printing characters. Spaces are allowed, but not recommended as best practice. The regular expression used to verify a name is valid is:

^[\x20-\x2E|\x30-\x5F|\x61-\x7E]*$