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| author | Amit Langote <amitlan@postgresql.org> | 2023-07-20 16:19:56 +0900 |
|---|---|---|
| committer | Amit Langote <amitlan@postgresql.org> | 2023-07-20 16:19:56 +0900 |
| commit | 3c152a27b06313fe27bd47079658f928e291986b (patch) | |
| tree | dcaec379d19f32b4aa8279c685ce4847f80cdae0 /src/include/utils/jsonfuncs.h | |
| parent | 2a990abd79acea4717cc8f982a28f35b6b347ddb (diff) | |
| download | postgresql-3c152a27b06313fe27bd47079658f928e291986b.tar.gz postgresql-3c152a27b06313fe27bd47079658f928e291986b.zip | |
Unify JSON categorize type API and export for external use
This essentially removes the JsonbTypeCategory enum and
jsonb_categorize_type() and integrates any jsonb-specific logic that
was in jsonb_categorize_type() into json_categorize_type(), now
moved to jsonfuncs.c. The remaining JsonTypeCategory enum and
json_categorize_type() cover the needs of the callers in both json.c
and jsonb.c. json_categorize_type() has grown a new parameter named
is_jsonb for callers to engage the jsonb-specific behavior of
json_categorize_type().
One notable change in the now exported API of json_categorize_type()
is that it now always returns *outfuncoid even though a caller may
have no need currently to see one.
This is in preparation of later commits to implement additional
SQL/JSON functions.
Co-authored-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/CA+HiwqE4XTdfb1nW=Ojoy_tQSRhYt-q_kb6i5d4xcKyrLC1Nbg@mail.gmail.com
Diffstat (limited to 'src/include/utils/jsonfuncs.h')
| -rw-r--r-- | src/include/utils/jsonfuncs.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/include/utils/jsonfuncs.h b/src/include/utils/jsonfuncs.h index a85203d4a4b..121dfd5d248 100644 --- a/src/include/utils/jsonfuncs.h +++ b/src/include/utils/jsonfuncs.h @@ -63,4 +63,24 @@ extern Jsonb *transform_jsonb_string_values(Jsonb *jsonb, void *action_state, extern text *transform_json_string_values(text *json, void *action_state, JsonTransformStringValuesAction transform_action); +/* Type categories returned by json_categorize_type */ +typedef enum +{ + JSONTYPE_NULL, /* null, so we didn't bother to identify */ + JSONTYPE_BOOL, /* boolean (built-in types only) */ + JSONTYPE_NUMERIC, /* numeric (ditto) */ + JSONTYPE_DATE, /* we use special formatting for datetimes */ + JSONTYPE_TIMESTAMP, + JSONTYPE_TIMESTAMPTZ, + JSONTYPE_JSON, /* JSON (and JSONB, if not is_jsonb) */ + JSONTYPE_JSONB, /* JSONB (if is_jsonb) */ + JSONTYPE_ARRAY, /* array */ + JSONTYPE_COMPOSITE, /* composite */ + JSONTYPE_CAST, /* something with an explicit cast to JSON */ + JSONTYPE_OTHER, /* all else */ +} JsonTypeCategory; + +extern void json_categorize_type(Oid typoid, bool is_jsonb, + JsonTypeCategory *tcategory, Oid *outfuncoid); + #endif |