Re: Regarding feature #6841

Hi Dave,
We took help from Code Mirror, i.e Code Mirror gives the parsed SQL from
the editor through a tree called syntaxTree and by using some logic we
extracted the statements which have semicolon in it and also added some
extra logic to break the whole query on next of next line as empty or if
comments are there.

Using all this logic we got the individual queries and checked where our
cursor is in editor and checked with the query and through this we got the
actual query at cursor position.

For example,

1. if the cursor is at starting or ending position or anywhere in
between a query with semicolon or without semicolon, that can be single
line or multi line then the query gets extracted.
2. if the cursor is at starting or ending position or anywhere in
between a comment that can be single line or multi line then the comment
gets extracted.
3. if the cursor is at a position where the previous line has a query
then that query gets extracted.

For the anonymous block containing multiple queries, code mirror gives the
statements differently. That is an incomplete query we can say, so the
query tool gives error. We can say some limitations are there with Code
Mirror.

Please let me know if you have any questions on this.

Regards
Anil
--

<http://www.enterprisedb.com>

*Anil Sahoo*

Software Engineer

www.enterprisedb.com

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On Thu, Apr 18, 2024 at 2:24 PM Dave Page <dpage(at)pgadmin(dot)org> wrote:

> Hi
>
> On Wed, 17 Apr 2024 at 15:08, Anil Sahoo <anil(dot)sahoo(at)enterprisedb(dot)com>
> wrote:
>
>> Hi Hackers,
>>
>> This feature is about executing a query at the cursor position. And that
>> query can be a one line or multiline. I have assigned a play icon button
>> and F5 as the keyboard shortcut for the Execute Query feature, and for
>> Execute Script, Playlist icon button and Alt+F5(Others),Option+F5(Mac) as
>> keyboard shortcut.
>>
>> As now the query can run at cursor position, so for user convenience I am
>> showing the current query just beside the Data Output toolbar. And on hover
>> of the text, it will show the whole query as a tooltip. This query text
>> will be available for both Execute Script and Execute Query.
>>
>> I have made the UI change for the feature #6841
>> <https://github.com/pgadmin-org/pgadmin4/issues/6841>.
>>
>> Please provide your suggestions and feedback if these changes look okay
>> to you.
>>
>
> How is this parsing the query to figure out the correct text to send to
> the server? For example, I notice you have no semi-colons on many of the
> queries in your test; is it breaking on newlines? What if there's a newline
> (or multiple of them) in the query string? How does it cope with an
> anonymous block containing multiple queries, or a pl/whatever function
> definition that might contain queries within its text? Or a view definition?
>
> --
> Dave Page
> pgAdmin: https://www.pgadmin.org
> PostgreSQL: https://www.postgresql.org
> EDB: https://www.enterprisedb.com
>
>