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In Materialize, identifiers are used to refer to columns and database objects like sources, views, and indexes.

Naming restrictions

You can circumvent any of the above rules by double-quoting the the identifier, e.g. "123_source" or "fun_source_@". All characters inside a quoted identifier are taken literally, except that double-quotes must be escaped by writing two adjacent double-quotes, as in "includes""quote".

Keyword collision

Materialize is very permissive with accepting SQL keywords as identifiers (e.g. offset, user). If Materialize cannot use a keyword as an identifier in a particular location, it throws a syntax error. You can wrap the identifier in double quotes to force Materialize to interpret the word as an identifier instead of a keyword.

For example, SELECT offset is invalid, because it looks like a mistyping of SELECT OFFSET <n>. You can wrap the identifier in double quotes, as in SELECT "offset", to resolve the error.

We recommend that you avoid using keywords as identifiers whenever possible, as the syntax errors that result are not always obvious.

The keywords known to the latest unstable build of Materialize are listed below. Note that new keywords may be added in any release.