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New json functions.

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json_build_array() and json_build_object allow for the construction of
arbitrarily complex json trees. json_object() turns a one or two
dimensional array, or two separate arrays, into a json_object of
name/value pairs, similarly to the hstore() function.
json_object_agg() aggregates its two arguments into a single json object
as name value pairs.

Catalog version bumped.

Andrew Dunstan, reviewed by Marko Tiikkaja.
This commit is contained in:
Andrew Dunstan
2014-01-28 17:48:21 -05:00
parent 9132b189bf
commit 105639900b
10 changed files with 1221 additions and 71 deletions
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13
src/include/utils/json.h
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@ -31,6 +31,17 @@ extern Datum to_json(PG_FUNCTION_ARGS);
extern Datum json_agg_transfn(PG_FUNCTION_ARGS);
extern Datum json_agg_finalfn(PG_FUNCTION_ARGS);
extern Datum json_object_agg_finalfn(PG_FUNCTION_ARGS);
extern Datum json_object_agg_transfn(PG_FUNCTION_ARGS);
extern Datum json_build_object(PG_FUNCTION_ARGS);
extern Datum json_build_object_noargs(PG_FUNCTION_ARGS);
extern Datum json_build_array(PG_FUNCTION_ARGS);
extern Datum json_build_array_noargs(PG_FUNCTION_ARGS);
extern Datum json_object(PG_FUNCTION_ARGS);
extern Datum json_object_two_arg(PG_FUNCTION_ARGS);
extern void escape_json(StringInfo buf, const char *str);
extern Datum json_typeof(PG_FUNCTION_ARGS);
@ -49,5 +60,7 @@ extern Datum json_each_text(PG_FUNCTION_ARGS);
extern Datum json_array_elements(PG_FUNCTION_ARGS);
extern Datum json_populate_record(PG_FUNCTION_ARGS);
extern Datum json_populate_recordset(PG_FUNCTION_ARGS);
extern Datum json_to_record(PG_FUNCTION_ARGS);
extern Datum json_to_recordset(PG_FUNCTION_ARGS);
#endif /* JSON_H */