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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2023-03-29 12:11:36 +0200 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2023-03-29 12:11:36 +0200 |
| commit | 7081ac46ace8c459966174400b53418683c9fe5c (patch) | |
| tree | 52590ea33eb07a2d7acf4a1461101932c3c88757 /src/include/utils | |
| parent | 38b7437b9088b4859e4489a1a1a9ab7066f5b320 (diff) | |
| download | postgresql-7081ac46ace8c459966174400b53418683c9fe5c.tar.gz | |
SQL/JSON: add standard JSON constructor functions
This commit introduces the SQL/JSON standard-conforming constructors for
JSON types:
JSON_ARRAY()
JSON_ARRAYAGG()
JSON_OBJECT()
JSON_OBJECTAGG()
Most of the functionality was already present in PostgreSQL-specific
functions, but these include some new functionality such as the ability
to skip or include NULL values, and to allow duplicate keys or throw
error when they are found, as well as the standard specified syntax to
specify output type and format.
Author: Nikita Glukhov <n.gluhov@postgrespro.ru>
Author: Teodor Sigaev <teodor@sigaev.ru>
Author: Oleg Bartunov <obartunov@gmail.com>
Author: Alexander Korotkov <aekorotkov@gmail.com>
Author: Amit Langote <amitlangote09@gmail.com>
Reviewers have included (in no particular order) Andres Freund, Alexander
Korotkov, Pavel Stehule, Andrew Alsup, Erik Rijkers, Zihong Yu,
Himanshu Upadhyaya, Daniel Gustafsson, Justin Pryzby.
Discussion: https://postgr.es/m/CAF4Au4w2x-5LTnN_bxky-mq4=WOqsGsxSpENCzHRAzSnEd8+WQ@mail.gmail.com
Discussion: https://postgr.es/m/cd0bb935-0158-78a7-08b5-904886deac4b@postgrespro.ru
Discussion: https://postgr.es/m/20220616233130.rparivafipt6doj3@alap3.anarazel.de
Discussion: https://postgr.es/m/abd9b83b-aa66-f230-3d6d-734817f0995d%40postgresql.org
Diffstat (limited to 'src/include/utils')
| -rw-r--r-- | src/include/utils/json.h | 6 | ||||
| -rw-r--r-- | src/include/utils/jsonb.h | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/include/utils/json.h b/src/include/utils/json.h index 23e3cc41d6..b75f7d929d 100644 --- a/src/include/utils/json.h +++ b/src/include/utils/json.h @@ -20,5 +20,11 @@ extern void escape_json(StringInfo buf, const char *str); extern char *JsonEncodeDateTime(char *buf, Datum value, Oid typid, const int *tzp); +extern bool to_json_is_immutable(Oid typoid); +extern Datum json_build_object_worker(int nargs, Datum *args, bool *nulls, + Oid *types, bool absent_on_null, + bool unique_keys); +extern Datum json_build_array_worker(int nargs, Datum *args, bool *nulls, + Oid *types, bool absent_on_null); #endif /* JSON_H */ diff --git a/src/include/utils/jsonb.h b/src/include/utils/jsonb.h index 701e063abd..649a1644f2 100644 --- a/src/include/utils/jsonb.h +++ b/src/include/utils/jsonb.h @@ -321,6 +321,8 @@ typedef struct JsonbParseState JsonbValue contVal; Size size; struct JsonbParseState *next; + bool unique_keys; /* Check object key uniqueness */ + bool skip_nulls; /* Skip null object fields */ } JsonbParseState; /* @@ -427,4 +429,11 @@ extern Datum jsonb_set_element(Jsonb *jb, Datum *path, int path_len, JsonbValue *newval); extern Datum jsonb_get_element(Jsonb *jb, Datum *path, int npath, bool *isnull, bool as_text); +extern bool to_jsonb_is_immutable(Oid typoid); +extern Datum jsonb_build_object_worker(int nargs, Datum *args, bool *nulls, + Oid *types, bool absent_on_null, + bool unique_keys); +extern Datum jsonb_build_array_worker(int nargs, Datum *args, bool *nulls, + Oid *types, bool absent_on_null); + #endif /* __JSONB_H__ */ |