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In Materialize, identifiers are used to refer to SQL elements like sources, views, and indexes.

Naming restrictions

Identifiers must:

You can circumvent any of the above rules by double-quoting the the identifier, e.g. "123_source" or "fun_source_😀". When using double-quoted identifiers, the quotation marks are part of the identifier and must be used whenever referring to the element.

Keyword collision

Materialize is very permissive with letting users typical SQL keywords as identifiers (e.g. name, user). If Materialize cannot use a keyword as an identifier in a particular location, it throws a syntax error.