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postgresql/src/include/utils/json.h

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Built-in JSON data type. Like the XML data type, we simply store JSON data as text, after checking that it is valid. More complex operations such as canonicalization and comparison may come later, but this is enough for not. There are a few open issues here, such as whether we should attempt to detect UTF-8 surrogate pairs represented as \uXXXX\uYYYY, but this gets the basic framework in place.
2012-01-31 17:48:23 +01:00
/*-------------------------------------------------------------------------
*
* json.h
* Declarations for JSON data type support.
*
Update copyright via script for 2017
2017-01-03 19:48:53 +01:00
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
Built-in JSON data type. Like the XML data type, we simply store JSON data as text, after checking that it is valid. More complex operations such as canonicalization and comparison may come later, but this is enough for not. There are a few open issues here, such as whether we should attempt to detect UTF-8 surrogate pairs represented as \uXXXX\uYYYY, but this gets the basic framework in place.
2012-01-31 17:48:23 +01:00
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/utils/json.h
*
*-------------------------------------------------------------------------
*/
#ifndef JSON_H
#define JSON_H
Make include files work without having to include other ones first
2012-06-10 11:43:00 +02:00
#include "lib/stringinfo.h"
Built-in JSON data type. Like the XML data type, we simply store JSON data as text, after checking that it is valid. More complex operations such as canonicalization and comparison may come later, but this is enough for not. There are a few open issues here, such as whether we should attempt to detect UTF-8 surrogate pairs represented as \uXXXX\uYYYY, but this gets the basic framework in place.
2012-01-31 17:48:23 +01:00
Add new JSON processing functions and parser API. The JSON parser is converted into a recursive descent parser, and exposed for use by other modules such as extensions. The API provides hooks for all the significant parser event such as the beginning and end of objects and arrays, and providing functions to handle these hooks allows for fairly simple construction of a wide variety of JSON processing functions. A set of new basic processing functions and operators is also added, which use this API, including operations to extract array elements, object fields, get the length of arrays and the set of keys of a field, deconstruct an object into a set of key/value pairs, and create records from JSON objects and arrays of objects. Catalog version bumped. Andrew Dunstan, with some documentation assistance from Merlin Moncure.
2013-03-29 19:12:13 +01:00
/* functions in json.c */
Run pgindent on 9.2 source tree in preparation for first 9.3 commit-fest.
2012-06-10 21:20:04 +02:00
extern void escape_json(StringInfo buf, const char *str);
Built-in JSON data type. Like the XML data type, we simply store JSON data as text, after checking that it is valid. More complex operations such as canonicalization and comparison may come later, but this is enough for not. There are a few open issues here, such as whether we should attempt to detect UTF-8 surrogate pairs represented as \uXXXX\uYYYY, but this gets the basic framework in place.
2012-01-31 17:48:23 +01:00
Fix typo in comment Haifeng Liu
2012-02-29 03:52:52 +01:00
#endif /* JSON_H */