On Wed, Jan 22, 2025 at 12:53 AM Tom Lane wrote:
>
> jian he writes:
> > https://www.postgresql.org/docs/current/functions-matching.html#FUNCTIONS-SIMILARTO-REGEXP
>
> > """
> > or as a plain three-argument function:
> > substring(string, pattern, escape-character)
> > """
>
> > but here "escape-
"David G. Johnston" writes:
> I was going to write basically that but something feels off to me. Maybe
> something like this:
> "As shown here, the rank function produces a numerical ranking within each
> partition, using the order defined by the ORDER BY clause. Ranking assigns
> the same rank
On Tue, Jan 21, 2025 at 10:39 AM Tom Lane wrote:
> PG Doc comments form writes:
> > EXPECTED:
> > As shown here, the rank function produces a numerical rank for each
> distinct
> > PARTITION BY value in the current row's partition, using the order
> defined
> > by the ORDER BY clause. rank needs
On Tue, Jan 21, 2025 at 10:39 AM Tom Lane wrote:
> PG Doc comments form writes:
> > EXPECTED:
> > As shown here, the rank function produces a numerical rank for each
> distinct
> > PARTITION BY value in the current row's partition, using the order
> defined
> > by the ORDER BY clause. rank needs
PG Doc comments form writes:
> EXPECTED:
> As shown here, the rank function produces a numerical rank for each distinct
> PARTITION BY value in the current row's partition, using the order defined
> by the ORDER BY clause. rank needs no explicit parameter, because its
> behavior is entirely determ
PG Doc comments form writes:
> I am building a PostgreSQL parser and need a precise reference for the
> formal syntax of condition used in the WHERE clause.
We do not have one. You might be able to extract what you need from
our Bison grammar though:
https://git.postgresql.org/gitweb/?p=postgre
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/17/sql-select.html
Description:
Dear PostgreSQL Team,
I am building a PostgreSQL parser and need a precise reference for the
formal syntax of condition used in the WHERE clause. While the do
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/17/tutorial-window.html
Description:
EXPECTED:
As shown here, the rank function produces a numerical rank for each distinct
PARTITION BY value in the current row's partition, using the order
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/17/functions-range.html
Description:
Hi.
All examples on this page uses `not extend` expression:
```
anyrange &< anyrange → boolean
Does the first range not extend to the right of the secon
jian he writes:
> https://www.postgresql.org/docs/current/functions-matching.html#FUNCTIONS-SIMILARTO-REGEXP
> """
> or as a plain three-argument function:
> substring(string, pattern, escape-character)
> """
> but here "escape-character" is optional.
> substring(string, pattern [,escape-charac
hi.
https://www.postgresql.org/docs/current/functions-matching.html#FUNCTIONS-SIMILARTO-REGEXP
"""
or as a plain three-argument function:
substring(string, pattern, escape-character)
"""
but here "escape-character" is optional.
substring(string, pattern [,escape-character])
would be more accura
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