| From: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dave Cramer <pg(at)fastcrypt(dot)com> |
| Cc: | Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>, Jan de Visser <jan(at)de-visser(dot)net>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Problems with question marks in operators (JDBC, ECPG, ...) |
| Date: | 2015-05-20 20:13:10 |
| Message-ID: | 222118002.2938849.1432152790535.JavaMail.yahoo@mail.yahoo.com |
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| Lists: | pgsql-hackers |
Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> On 05/20/2015 03:34 PM, Tom Lane wrote:
>> The <?> operator for tintervals can be traced back at least to
>> Postgres v4r2 (1994), which is the oldest tarball I have at
>> hand. Most of the current list are geometric operators that
>> were added by Tom Lockhart in 1997.
> When did the SQL standard add any mention of ?
FWIW, the first public, production release of Java in 1995 used it
for parameters. ODBC 1.0 was released in 1992. I would guess that
the question mark for parameters was there from the beginning, but
can't swear to it before 1995.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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