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Improve some JSON error messages.

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These messages are new in 9.4, which hasn't been released yet, so
back-patch to REL9_4_STABLE.

Daniele Varrazzo
This commit is contained in:
Robert Haas
2014-08-05 12:26:25 -04:00
parent ee646df59a
commit 0ef99bdce3
2 changed files with 14 additions and 8 deletions
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19
src/backend/utils/adt/json.c
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@ -1910,7 +1910,7 @@ json_object_agg_transfn(PG_FUNCTION_ARGS)
if (val_type == InvalidOid || val_type == UNKNOWNOID)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg 1: could not determine data type")));
errmsg("could not determine data type for argument %d", 1)));
add_json(arg, false, state, val_type, true);
@ -1934,7 +1934,7 @@ json_object_agg_transfn(PG_FUNCTION_ARGS)
if (val_type == InvalidOid || val_type == UNKNOWNOID)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg 2: could not determine data type")));
errmsg("could not determine data type for argument %d", 2)));
add_json(arg, PG_ARGISNULL(2), state, val_type, false);
@ -1980,7 +1980,8 @@ json_build_object(PG_FUNCTION_ARGS)
if (nargs % 2 != 0)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid number or arguments: object must be matched key value pairs")));
errmsg("invalid number or arguments"),
errhint("Object must be matched key value pairs.")));
result = makeStringInfo();
@ -1994,7 +1995,8 @@ json_build_object(PG_FUNCTION_ARGS)
if (PG_ARGISNULL(i))
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg %d: key cannot be null", i + 1)));
errmsg("argument %d cannot be null", i + 1),
errhint("Object keys should be text.")));
val_type = get_fn_expr_argtype(fcinfo->flinfo, i);
/*
@ -2016,7 +2018,8 @@ json_build_object(PG_FUNCTION_ARGS)
if (val_type == InvalidOid || val_type == UNKNOWNOID)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg %d: could not determine data type", i + 1)));
errmsg("could not determine data type for argument %d",
i + 1)));
appendStringInfoString(result, sep);
sep = ", ";
add_json(arg, false, result, val_type, true);
@ -2042,7 +2045,8 @@ json_build_object(PG_FUNCTION_ARGS)
if (val_type == InvalidOid || val_type == UNKNOWNOID)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg %d: could not determine data type", i + 2)));
errmsg("could not determine data type for argument %d",
i + 2)));
add_json(arg, PG_ARGISNULL(i + 1), result, val_type, false);
}
@ -2099,7 +2103,8 @@ json_build_array(PG_FUNCTION_ARGS)
if (val_type == InvalidOid || val_type == UNKNOWNOID)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("arg %d: could not determine data type", i + 1)));
errmsg("could not determine data type for argument %d",
i + 1)));
appendStringInfoString(result, sep);
sep = ", ";
add_json(arg, PG_ARGISNULL(i), result, val_type, false);