On 01/08/2012 03:51 PM, David E. Wheeler wrote:
Anyway, the ppg
docs](http://www.postgresql.org/docs/9.1/static/sql-syntax-lexical.html) say
about dollar quoting:
“The tag, if any, of a dollar-quoted string follows the same rules as an
unquoted identifier, except that it cannot contain a dollar sign.”
And for an unquoted identifier, they say:
“SQL identifiers and key words must begin with a letter (a-z, but also letters
with diacritical marks and non-Latin letters) or an underscore (_). Subsequent
characters in an identifier or key word can be letters, underscores, digits
(0-9), or dollar signs ($).”
Does 北 qualify as a non-Latin letter?
Any non-ASCII character qualifies. From scan.l:
dolq_start [A-Za-z\200-\377_]
dolq_cont [A-Za-z\200-\377_0-9]
dolqdelim \$({dolq_start}{dolq_cont}*)?\$
cheers
andrew
