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38fb4d978c
This adds the following:
json_agg(anyrecord) -> json
to_json(any) -> json
hstore_to_json(hstore) -> json (also used as a cast)
hstore_to_json_loose(hstore) -> json
The last provides heuristic treatment of numbers and booleans.
Also, in json generation, if any non-builtin type has a cast to json,
that function is used instead of the type's output function.
Andrew Dunstan, reviewed by Steve Singer.
Catalog version bumped.
35 lines
1 KiB
C
35 lines
1 KiB
C
/*-------------------------------------------------------------------------
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*
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* json.h
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* Declarations for JSON data type support.
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*
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* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/utils/json.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef JSON_H
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#define JSON_H
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#include "fmgr.h"
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#include "lib/stringinfo.h"
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extern Datum json_in(PG_FUNCTION_ARGS);
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extern Datum json_out(PG_FUNCTION_ARGS);
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extern Datum json_recv(PG_FUNCTION_ARGS);
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extern Datum json_send(PG_FUNCTION_ARGS);
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extern Datum array_to_json(PG_FUNCTION_ARGS);
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extern Datum array_to_json_pretty(PG_FUNCTION_ARGS);
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extern Datum row_to_json(PG_FUNCTION_ARGS);
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extern Datum row_to_json_pretty(PG_FUNCTION_ARGS);
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extern Datum to_json(PG_FUNCTION_ARGS);
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extern Datum json_agg_transfn(PG_FUNCTION_ARGS);
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extern Datum json_agg_finalfn(PG_FUNCTION_ARGS);
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extern void escape_json(StringInfo buf, const char *str);
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#endif /* JSON_H */
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