diff options
Diffstat (limited to 'src/backend/parser/parse_expr.c')
| -rw-r--r-- | src/backend/parser/parse_expr.c | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c index 560b360644f..45c019627cc 100644 --- a/src/backend/parser/parse_expr.c +++ b/src/backend/parser/parse_expr.c @@ -3709,11 +3709,9 @@ makeJsonConstructorExpr(ParseState *pstate, JsonConstructorType type, /* * Transform JSON_OBJECT() constructor. * - * JSON_OBJECT() is transformed into json[b]_build_object[_ext]() call - * depending on the output JSON format. The first two arguments of - * json[b]_build_object_ext() are absent_on_null and check_unique. - * - * Then function call result is coerced to the target type. + * JSON_OBJECT() is transformed into a JsonConstructorExpr node of type + * JSCTOR_JSON_OBJECT. The result is coerced to the target type given + * by ctor->output. */ static Node * transformJsonObjectConstructor(ParseState *pstate, JsonObjectConstructor *ctor) @@ -3903,10 +3901,11 @@ transformJsonAggConstructor(ParseState *pstate, JsonAggConstructor *agg_ctor, /* * Transform JSON_OBJECTAGG() aggregate function. * - * JSON_OBJECTAGG() is transformed into - * json[b]_objectagg[_unique][_strict](key, value) call depending on - * the output JSON format. Then the function call result is coerced to the - * target output type. + * JSON_OBJECT() is transformed into a JsonConstructorExpr node of type + * JSCTOR_JSON_OBJECTAGG, which at runtime becomes a + * json[b]_object_agg[_unique][_strict](agg->arg->key, agg->arg->value) call + * depending on the output JSON format. The result is coerced to the target + * type given by agg->constructor->output. */ static Node * transformJsonObjectAgg(ParseState *pstate, JsonObjectAgg *agg) @@ -3966,9 +3965,11 @@ transformJsonObjectAgg(ParseState *pstate, JsonObjectAgg *agg) /* * Transform JSON_ARRAYAGG() aggregate function. * - * JSON_ARRAYAGG() is transformed into json[b]_agg[_strict]() call depending - * on the output JSON format and absent_on_null. Then the function call result - * is coerced to the target output type. + * JSON_ARRAYAGG() is transformed into a JsonConstructorExpr node of type + * JSCTOR_JSON_ARRAYAGG, which at runtime becomes a + * json[b]_object_agg[_unique][_strict](agg->arg) call depending on the output + * JSON format. The result is coerced to the target type given by + * agg->constructor->output. */ static Node * transformJsonArrayAgg(ParseState *pstate, JsonArrayAgg *agg) @@ -4004,11 +4005,9 @@ transformJsonArrayAgg(ParseState *pstate, JsonArrayAgg *agg) /* * Transform JSON_ARRAY() constructor. * - * JSON_ARRAY() is transformed into json[b]_build_array[_ext]() call - * depending on the output JSON format. The first argument of - * json[b]_build_array_ext() is absent_on_null. - * - * Then function call result is coerced to the target type. + * JSON_ARRAY() is transformed into a JsonConstructorExpr node of type + * JSCTOR_JSON_ARRAY. The result is coerced to the target type given + * by ctor->output. */ static Node * transformJsonArrayConstructor(ParseState *pstate, JsonArrayConstructor *ctor) |