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| author | Amit Langote <amitlan@postgresql.org> | 2023-07-20 22:21:43 +0900 |
|---|---|---|
| committer | Amit Langote <amitlan@postgresql.org> | 2023-07-26 17:08:33 +0900 |
| commit | 03734a7fed7d924679770adb78a7db8a37d14188 (patch) | |
| tree | f6f85a40bf1a673f87a973bfdf989e2890cee0c8 /src/backend/utils/adt/ruleutils.c | |
| parent | 254ac5a7c31f7e6d3908c057461db5401d2110b0 (diff) | |
| download | postgresql-03734a7fed7d924679770adb78a7db8a37d14188.tar.gz postgresql-03734a7fed7d924679770adb78a7db8a37d14188.zip | |
Add more SQL/JSON constructor functions
This Patch introduces three SQL standard JSON functions:
JSON()
JSON_SCALAR()
JSON_SERIALIZE()
JSON() produces json values from text, bytea, json or jsonb values,
and has facilitites for handling duplicate keys.
JSON_SCALAR() produces a json value from any scalar sql value,
including json and jsonb.
JSON_SERIALIZE() produces text or bytea from input which containis
or represents json or jsonb;
For the most part these functions don't add any significant new
capabilities, but they will be of use to users wanting standard
compliant JSON handling.
Catversion bumped as this changes ruleutils.c.
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: Andrew Dunstan <andrew@dunslane.net>
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, Álvaro Herrera,
Peter Eisentraut
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
Discussion: https://postgr.es/m/CA+HiwqE4XTdfb1nW=Ojoy_tQSRhYt-q_kb6i5d4xcKyrLC1Nbg@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
| -rw-r--r-- | src/backend/utils/adt/ruleutils.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index fcb2f45f623..03f2835c3f1 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -10832,6 +10832,15 @@ get_json_constructor(JsonConstructorExpr *ctor, deparse_context *context, case JSCTOR_JSON_ARRAY: funcname = "JSON_ARRAY"; break; + case JSCTOR_JSON_PARSE: + funcname = "JSON"; + break; + case JSCTOR_JSON_SCALAR: + funcname = "JSON_SCALAR"; + break; + case JSCTOR_JSON_SERIALIZE: + funcname = "JSON_SERIALIZE"; + break; default: elog(ERROR, "invalid JsonConstructorType %d", ctor->type); } @@ -10879,7 +10888,12 @@ get_json_constructor_options(JsonConstructorExpr *ctor, StringInfo buf) if (ctor->unique) appendStringInfoString(buf, " WITH UNIQUE KEYS"); - get_json_returning(ctor->returning, buf, true); + /* + * Append RETURNING clause if needed; JSON() and JSON_SCALAR() don't + * support one. + */ + if (ctor->type != JSCTOR_JSON_PARSE && ctor->type != JSCTOR_JSON_SCALAR) + get_json_returning(ctor->returning, buf, true); } /* |