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Update documentation on may/can/might:

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Standard English uses "may", "can", and "might" in different ways:

        may - permission, "You may borrow my rake."

        can - ability, "I can lift that log."

        might - possibility, "It might rain today."

Unfortunately, in conversational English, their use is often mixed, as
in, "You may use this variable to do X", when in fact, "can" is a better
choice.  Similarly, "It may crash" is better stated, "It might crash".

Also update two error messages mentioned in the documenation to match.
This commit is contained in:
Bruce Momjian
2007-01-31 20:56:20 +00:00
parent 67a1ae9f05
commit a134ee3379
70 changed files with 729 additions and 731 deletions
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6
src/backend/parser/parse_func.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_func.c,v 1.191 2007/01/05 22:19:34 momjian Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_func.c,v 1.192 2007/01/31 20:56:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -213,7 +213,7 @@ ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
func_signature_string(funcname, nargs,
actual_arg_types)),
errhint("Could not choose a best candidate function. "
"You may need to add explicit type casts."),
"You might need to add explicit type casts."),
parser_errposition(pstate, location)));
else
ereport(ERROR,
@@ -222,7 +222,7 @@ ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
func_signature_string(funcname, nargs,
actual_arg_types)),
errhint("No function matches the given name and argument types. "
"You may need to add explicit type casts."),
"You might need to add explicit type casts."),
parser_errposition(pstate, location)));
}