doc: improve document of ECPG host variable - Mailing list pgsql-hackers

From Ryo Matsumura (Fujitsu)
Subject doc: improve document of ECPG host variable
Date
Msg-id TYCPR01MB1131608052307689D3C35B37CE881A@TYCPR01MB11316.jpnprd01.prod.outlook.com
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List pgsql-hackers
Hi hackers,

I attach a small patch improving document of ECPG host variable.
Please back patch to supported version, if possible.

Range of 'bool' as type of ECPG is not defined explicitly. Our customer was confused.
Additionally, I could not understand clearly what the existing sentence mentions to user.

My idea is as follows:

- [b] declared in ecpglib.h if not native
+ [b] Range of bool is true/false only.
      There is no need to include any header like stdbool.h for type and literals
      because they are defined by ECPG and
      ECPG internally includes a appropriate C language standard header or
      deifnes them if there is no such header.

Best Regards
Ryo Matsumura
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