Re: ECPG bug: PRAPARE FOR

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От 1250kv
Тема Re: ECPG bug: PRAPARE FOR
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Msg-id CA+4qtLdA5iw5fNSAb4zZX_EbcxjEsgxvnBR0ctXnaO7sbR-gmA@mail.gmail.com
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Ответ на Re: ECPG bug: PRAPARE FOR  ("David G. Johnston" <david.g.johnston@gmail.com>)
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I have also tried dollar quoting.
Unfortunately it fails at runtime: 
SQL error: syntax error at or near "$$My_Proc$$"

On Tue, Oct 20, 2020 at 8:00 PM David G. Johnston <david.g.johnston@gmail.com> wrote:
On Tue, Oct 20, 2020 at 9:47 AM 1250kv <1250kv@gmail.com> wrote:
Hello
I have code:

void main()
{
  char *foo = "CALL "My_Proc"(?)";
  EXEC SQL char *stmt = foo;
  EXEC SQL PREPARE prep_stmt FROM :stmt;

  EXEC SQL char *stmt2 = "CALL \x22OMy_Proc\x22(?)";
  EXEC SQL PREPARE prep_stmt2 FROM :stmt2;

  EXEC SQL PREPARE prep_stmt3 FROM "CALL "My_Proc"(?)";
}

ecpg --version
ecpg (PostgreSQL) 13.0 (Ubuntu 13.0-1.pgdg20.04+1)

ecpg sample.pgc -o sample.c
sample.pgc:10: ERROR: syntax error at or near "My_Proc"

General usage questions regarding PostgreSQL and ECPG should be sent to the -general list.

I don't know the correct answer here but maybe using dollar quoting within the PostgreSQL SQL statement instead of double-quotes will help.  Something like:

prepare prep_stat3 from "call $$My_Proc$$()";

Asking an actual question does help others to figure out where you are confused instead of just guessing.

David J.

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