13 Commits (699b1f40da3139def660235fa8a782ec8dd8f575)

Author	SHA1	Message	Date
Andrew Dunstan	105639900b	New json functions. ... 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.	12 years ago
Peter Eisentraut	001e114b8d	Fix whitespace issues found by git diff --check, add gitattributes ... Set per file type attributes in .gitattributes to fine-tune whitespace checks. With the associated cleanups, the tree is now clean for git	12 years ago
Andrew Dunstan	4d212bac17	json_typeof function. ... Andrew Tipton.	12 years ago
Andrew Dunstan	78ed8e03c6	Fix unescaping of JSON Unicode escapes, especially for non-UTF8. ... Per discussion on -hackers. We treat Unicode escapes when unescaping them similarly to the way we treat them in PostgreSQL string literals. Escapes in the ASCII range are always accepted, no matter what the database encoding. Escapes for higher code points are only processed in UTF8 databases, and attempts to process them in other databases will result in an error. \u0000 is never unescaped, since it would result in an impermissible null byte.	13 years ago
Andrew Dunstan	94e3311b97	Handle Unicode surrogate pairs correctly when processing JSON. ... In 9.2, Unicode escape sequences are not analysed at all other than to make sure that they are in the form \uXXXX. But in 9.3 many of the new operators and functions try to turn JSON text values into text in the server encoding, and this includes de-escaping Unicode escape sequences. This processing had not taken into account the possibility that this might contain a surrogate pair to designate a character outside the BMP. That is now handled correctly. This also enforces correct use of surrogate pairs, something that is not done by the type's input routines. This fact is noted in the docs.	13 years ago
Peter Eisentraut	8b5a3998a1	Remove whitespace from end of lines	13 years ago
Andrew Dunstan	a570c98d7f	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.	13 years ago
Andrew Dunstan	38fb4d978c	JSON generation improvements. ... 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.	13 years ago
Peter Eisentraut	f1f6737e15	Fix incorrect logic in JSON number lexer ... Detectable by gcc -Wlogical-op. Add two regression test cases that would previously allow incorrect values to pass.	14 years ago
Peter Eisentraut	c8e086795a	Remove whitespace from end of lines ... pgindent and perltidy should clean up the rest.	14 years ago
Andrew Dunstan	83fcaffea2	Fix a couple of cases of JSON output. ... First, as noted by Itagaki Takahiro, a datum of type JSON doesn't need to be escaped. Second, ensure that numeric output not in the form of a legal JSON number is quoted and escaped.	14 years ago
Andrew Dunstan	39909d1d39	Add array_to_json and row_to_json functions. ... Also move the escape_json function from explain.c to json.c where it seems to belong. Andrew Dunstan, Reviewd by Abhijit Menon-Sen.	14 years ago
Robert Haas	5384a73f98	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.	14 years ago