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postgresql/src/interfaces/ecpg
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Michael Meskes bd7c95f0c1 Add DECLARE STATEMENT support to ECPG. 
DECLARE STATEMENT is a statement that lets users declare an identifier
pointing at a connection.  This identifier will be used in other embedded
dynamic SQL statement such as PREPARE, EXECUTE, DECLARE CURSOR and so on.
When connecting to a non-default connection, the AT clause can be used in
a DECLARE STATEMENT once and is no longer needed in every dynamic SQL
statement.  This makes ECPG applications easier and more efficient.  Moreover,
writing code without designating connection explicitly improves portability.

Authors: Ideriha-san ("Ideriha, Takeshi" <ideriha.takeshi@jp.fujitsu.com>)
         Kuroda-san ("Kuroda, Hayato" <kuroda.hayato@jp.fujitsu.com>)

Discussion: https://postgr.es/m4E72940DA2BF16479384A86D54D0988A565669DF@G01JPEXMBKW04
2019-02-16 11:05:54 +01:00
..
compatlib Update copyright for 2019 2019-01-02 12:44:25 -05:00
ecpglib Add DECLARE STATEMENT support to ECPG. 2019-02-16 11:05:54 +01:00
include Add DECLARE STATEMENT support to ECPG. 2019-02-16 11:05:54 +01:00
pgtypeslib Update copyright for 2019 2019-01-02 12:44:25 -05:00
preproc Add DECLARE STATEMENT support to ECPG. 2019-02-16 11:05:54 +01:00
test Add DECLARE STATEMENT support to ECPG. 2019-02-16 11:05:54 +01:00
Makefile Fix parallel make risk with new check temp-install setup 2015-04-29 20:34:22 -04:00
README.dynSQL Fix whitespace issues found by git diff --check, add gitattributes 2013-11-10 14:48:29 -05:00

README.dynSQL 

src/interfaces/ecpg/README.dynSQL

descriptor statements have the following shortcomings

- input descriptors (USING DESCRIPTOR <name>) are not supported

  Reason: to fully support dynamic SQL the frontend/backend communication
          should change to recognize input parameters.
          Since this is not likely to happen in the near future and you
          can cover the same functionality with the existing infrastructure
          (using s[n]printf), I'll leave the work to someone else.