Readme
.. -- coding: utf-8 -- .. :Project: pglast -- PostgreSQL Languages AST .. :Created: mer 02 ago 2017 14:49:24 CEST .. :Author: Lele Gaifax lele@metapensiero.it .. :License: GNU General Public License version 3 or later .. :Copyright: © 2017, 2018, 2019, 2020, 2021, 2022, 2023 Lele Gaifax ..
:Author: Lele Gaifax
:Contact: lele@metapensiero.it
:License: GNU General Public License version 3 or later__
:Status: |build| |doc| |codecov|
:Version: 6__
__ https://www.gnu.org/licenses/gpl.html __ https://pglast.readthedocs.io/en/v6/development.html#history
.. |build| image:: https://github.com/lelit/pglast/actions/workflows/ci.yml/badge.svg?branch=v6 :target: https://github.com/lelit/pglast/actions/workflows/ci.yml :alt: Build status .. |doc| image:: https://readthedocs.org/projects/pglast/badge/?version=v6 :target: https://readthedocs.org/projects/pglast/builds/ :alt: Documentation status .. |codecov| image:: https://codecov.io/gh/lelit/pglast/branch/v3/graph/badge.svg?token=A90D8tWnft :target: https://codecov.io/gh/lelit/pglast :alt: Test coverage status
This is a Python 3 module that exposes the parse tree of a PostgreSQL__ statement (extracted
by the almost standard PG parser repackaged as a standalone static library by libpg_query__)
as set of interconnected nodes, usually called an abstract syntax tree.
__ https://www.postgresql.org/ __ https://github.com/pganalyze/libpg_query
See a more detailed introduction__ in the documentation_.
__ https://pglast.readthedocs.io/en/v6/introduction.html
As usual, the easiest way is with pip::
$ pip install pglast
Alternatively you can clone the repository::
$ git clone https://github.com/lelit/pglast.git --recursive
and install from there::
$ pip install ./pglast
There is a set of makefiles implementing the most common operations, a make help will
show a brief table of contents. A comprehensive test suite, based on pytest__, covers__ nearly
99% of the source lines.
__ https://docs.pytest.org/en/latest/ __ https://codecov.io/gh/lelit/pglast/branch/v6/
Latest documentation is hosted by Read the Docs__ at https://pglast.readthedocs.io/en/v6
.. -- coding: utf-8 --
.. _changes:
Version 6 #########
6.2 (2024-02-01)
- Almost no-op release to fix issue `144`__, producing correct wheels for macOS arm64
__ https://github.com/lelit/pglast/issues/144
6.1 (2024-01-22)
Inherit fix for issue 143__ from version 5_
6.0 (2024-01-22)
- Produce wheels for macOS arm64
6.0.dev2 (2024-01-21)
Enable compilation on Windows and produce related 32bit and 64bit wheels (issue #7__)
6.0.dev1 (2024-01-11)
- Re-enable Linux 32bit wheels, thanks to libpg_query to `16-5.1.0`__
__ https://github.com/pganalyze/libpg_query/releases/tag/16-5.1.0
6.0.dev0 (2023-12-29)
No visible changes with respect to v5, apart from the support for new/revised syntaxes of
PostgreSQL 16__
Do not build binary wheels for Python 3.8
Skip compilation on Linux 32bit (see this comment__ for details)
__ https://github.com/pganalyze/libpg_query/pull/225#issuecomment-1864145089
**Breaking changes**
Target PostgreSQL 16, thanks to libpg_query 16-5.0.0__
__ https://github.com/pganalyze/libpg_query/releases/tag/16-5.0.0
Version 5 #########
5.9 (2024-01-22)
- Fix issue `143`__, affecting ``AlterOwnerStmt`` and ``RenameStmt`` printers
__ https://github.com/lelit/pglast/issues/143
5.8 (2024-01-11)
Fix issue #142__, a glitch that affected 32-bit systems
5.7 (2023-12-23)
- Use `Cython 3.0.7`__
__ https://github.com/cython/cython/blob/master/CHANGES.rst#307-2023-12-19
- Update libpg_query to `15-4.2.4`__
__ https://github.com/pganalyze/libpg_query/releases/tag/15-4.2.4
5.6 (2023-12-07)
Fix issue #138__, a defect that hindered the creation of AST nodes that act as markers,
(currently A_Star and CheckPointStmt), that do not carry any other information
Use Cython 3.0.6__
__ https://github.com/cython/cython/blob/master/CHANGES.rst#306-2023-11-26
Handle the ENABLE TRIGGER ALL in AlterTableCmd
Fix issue #136__, a regression introduced by “Avoid overly abundancy of parentheses in
expressions”
5.5 (2023-10-07)
- Use `Cython 3.0.3`__
__ https://github.com/cython/cython/blob/master/CHANGES.rst#303-2023-10-05
- Produce wheels using final Python 3.12 release, thanks to ``cibuildwheel`` `2.16.2`__
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2162
5.4 (2023-08-24)
Improve documentation, adding parser.Displacements, parser.scan and parser.split
examples (issue #128__)
Fix issues #129__ and #130__ (merged from version 4.4__)
__ https://github.com/lelit/pglast/issues/129
__ https://github.com/lelit/pglast/issues/130
__ 4.4 (2023-08-24)_
5.3 (2023-08-05)
- Update libpg_query to `15-4.2.3`__
__ https://github.com/pganalyze/libpg_query/releases/tag/15-4.2.3
5.2 (2023-05-20)
Update libpg_query to 15-4.2.1__
__ https://github.com/pganalyze/libpg_query/releases/tag/15-4.2.1
5.1 (2023-02-28)
- Merge `version 4.2`__ changes
__ `4.2 (2023-02-27)`_
5.0 (2023-02-19)
5.0.dev1 (2023-02-11)
- Update libpg_query to `15-4.2.0`__
__ https://github.com/pganalyze/libpg_query/releases/tag/15-4.2.0
~~~~~~~~~~~~~~~~~~~~
**Breaking changes**
~~~~~~~~~~~~~~~~~~~~
- Change the type of the ``ast.Float`` value from ``Decimal`` to ``str``
Using a ``Decimal`` implies potential differences in the representation of floating numbers,
and already caused issues (`#91`__ and `#100`__) in the past, making it impossible to render,
say, ``SELECT 0.0e1``, due to the fact that ``Decimal('0.0e1')`` resolves to
``Decimal('0')``.
__ https://github.com/lelit/pglast/issues/91
__ https://github.com/lelit/pglast/issues/100
5.0.dev0 (2022-12-19)
No visible changes with respect to v4, apart from the support for new/revised syntaxes of
PostgreSQL 15__
**Breaking changes**
Target PostgreSQL 15, thanks to libpg_query 15-4.0.0__
__ https://github.com/pganalyze/libpg_query/releases/tag/15-4.0.0
Version 4 #########
4.5 (unreleased)
- Use `Cython 3.0.2`__
__ https://github.com/cython/cython/blob/master/CHANGES.rst#302-2023-08-27
4.4 (2023-08-24)
Fix issues #129__ and #130__ (merged from version 3.18__)
__ https://github.com/lelit/pglast/issues/129
__ https://github.com/lelit/pglast/issues/130
__ 3.18 (2023-08-24)_
4.3 (2023-04-27)
- Fix `serialization issue`__ when column's ``DEFAULT`` value is an expression
__ https://github.com/pganalyze/libpg_query/issues/188
4.2 (2023-02-27)
Handle special syntax required by SET TIME ZONE INTERVAL '-08:00' hour to minute
Fix mistype mapping of raw C "long" and "double" attributes, that were decorated with the wrong Python type
4.1 (2022-12-19)
- Fix serialization glitches introduced by “Avoid overly abundancy of parentheses in
expressions” (to be precise, by this__ commit)
__ https://github.com/lelit/pglast/commit/6cfe75eea80f9c9bec4ba467e7ec1ec0796020de
4.0 (2022-12-12)
Update libpg_query to final 14-3.0.0__
__ https://github.com/pganalyze/libpg_query/releases/tag/14-3.0.0
4.0.dev0 (2022-11-24)
- Update libpg_query to `14-3.0.0`__
__ https://github.com/pganalyze/libpg_query/blob/14-latest/CHANGELOG.md#14-300---2022-11-17
- Avoid overly abundancy of parentheses in expressions
- Prefer ``SELECT a FROM b LIMIT ALL`` to ``... LIMIT NONE``
~~~~~~~~~~~~~~~~~~~~
**Breaking changes**
~~~~~~~~~~~~~~~~~~~~
- Target PostgreSQL 14
- The wrapper classes used in previous versions, implemented in ``pglast.node``, are gone: now
everything works on top of the ``AST`` classes (`issue #80`__)
__ https://github.com/lelit/pglast/issues/80
- The ``Ancestor`` class is not iterable anymore: it was an internal implementation facility,
now moved to a ``_iter_members()`` method
Version 3
#########
3.18 (2023-08-24)
~~~~~~~~~~~~~~~~~
- Fix ``BooleanTest`` printer, enclosing expression within parens in more cases (`issue
#129`__)
__ https://github.com/lelit/pglast/issues/129
- Fix ``Constraint`` printer, avoiding repetition of "DEFERRABLE INITIALLY DEFERRED" on some
kind of constraints (`issue #130`__)
__ https://github.com/lelit/pglast/issues/130
3.17 (2022-11-04)
~~~~~~~~~~~~~~~~~
- Fix ``AlterSubscriptionStmt`` printer, handling "SET PUBLICATION" without options
3.16 (2022-11-03)
~~~~~~~~~~~~~~~~~
- Update libpg_query to `13-2.2.0`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-220---2022-11-02
3.15 (2022-10-17)
~~~~~~~~~~~~~~~~~
- Produce Python 3.11 wheels (`PR #108`__), thanks to ``cibuildwheel`` 2.11.1__ and to Bastien
Gandouet
__ https://github.com/lelit/pglast/pull/108
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2111
3.14 (2022-08-08)
~~~~~~~~~~~~~~~~~
- Harden the way ``Visitor`` handle modifications to the AST (`issue #107`__)
__ https://github.com/lelit/pglast/issues/107
3.13 (2022-06-29)
~~~~~~~~~~~~~~~~~
- Update libpg_query to `13-2.1.2`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-212---2022-06-28
3.12 (2022-06-19)
~~~~~~~~~~~~~~~~~
- Rewrite the implementation of the ``referenced_relations()`` function, that was flawed with
regard to CTEs handling (`issue #106`__), thanks to Michal Charemza for providing his own
version
__ https://github.com/lelit/pglast/issues/106
- Improve ``WithClause`` printer indentation
- Fix minor whitespace related issues in a few printer functions
3.11 (2022-05-29)
~~~~~~~~~~~~~~~~~
- Fix the ``Visitor`` class, it was ignoring nodes nested in sub-lists
- Reduce the size of the generated parser by factoring out common code into helper functions
3.10 (2022-05-11)
~~~~~~~~~~~~~~~~~
- Update libpg_query to `13-2.1.1`__ (`PR #102`__), thanks to James Guthrie
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-211---2022-05-03
__ https://github.com/lelit/pglast/pull/102
- Produce `musllinux`__ wheels, thanks to ``cibuildwheel`` `2.5.0`__ (:PEP:`656` was actually
introduced in `2.2.0`__)
__ https://peps.python.org/pep-0656/
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v250
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v220
3.9 (2022-02-24)
~~~~~~~~~~~~~~~~
- Fix bug handling node containing a ``location`` field, e.g. ``CreateTableSpaceStmt`` (`issue
#98`__)
__ https://github.com/lelit/pglast/issues/98
- Properly handle dereferenced array expression (`issue #99`__)
__ https://github.com/lelit/pglast/issues/99
- Avoid improper "floatification" of literal integers (`issue #100`__)
__ https://github.com/lelit/pglast/issues/100
3.8 (2021-12-28)
~~~~~~~~~~~~~~~~
- Fix glitch in the AST extractor tool (`issue #97`__)
__ https://github.com/lelit/pglast/issues/97
- Add Linux AArch64 wheel build support (`PR #95`__), thanks to odidev
__ https://github.com/lelit/pglast/pull/95
- Fix type mismatch when using ``--remove-pg_catalog-from-functions`` (`PR #93`__), thanks
to Boris Zentner
__ https://github.com/lelit/pglast/pull/93/
3.7 (2021-10-13)
~~~~~~~~~~~~~~~~
- Update libpg_query to `13-2.1.0`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-210---2021-10-12_
3.6 (2021-10-09)
~~~~~~~~~~~~~~~~
- Use latest libpg_query, to fix an error parsing ``PLpgSQL`` statements (`issue #88`__)
__ https://github.com/lelit/pglast/issues/88
3.5 (2021-09-26)
~~~~~~~~~~~~~~~~
- Forward the ``special_functions`` option to substream, when concatenating items
(`issue #89`__)
__ https://github.com/lelit/pglast/issues/89
- Fix representation of floating point numbers without decimal digits (`issue #91`__)
__ https://github.com/lelit/pglast/issues/91
- Produce Python 3.10 wheels, thanks to ``cibuildwheel`` 2.1.2
- Update libpg_query to `13-2.0.7`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-207---2021-07-16_
- New option ``--remove-pg_catalog-from-functions`` on the command line tool (`PR #90`__), thanks
to Boris Zentner
__ https://github.com/lelit/pglast/pull/90/
- Implement more *special functions* (`PR #92`__), thanks to Boris Zentner
__ https://github.com/lelit/pglast/pull/92/
3.4 (2021-08-21)
~~~~~~~~~~~~~~~~
- Fix another packaging issue, that prevented recompilation from the sdist ``.tar.gz`` (`issue
#86`__), thanks to Christopher Brichford
__ https://github.com/lelit/pglast/issues/82
3.3 (2021-07-04)
~~~~~~~~~~~~~~~~
- Update libpg_query to `13-2.0.6`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-206---2021-06-29_
3.2 (2021-06-25)
~~~~~~~~~~~~~~~~
- Effectively include libpg_query's vendored sources (`issue #82`__)
__ https://github.com/lelit/pglast/issues/82
3.1 (2021-06-25)
~~~~~~~~~~~~~~~~
- Fix packaging glitch (`issue #82`__)
__ https://github.com/lelit/pglast/issues/82
- Build wheels also for macOS
- Update libpg_query to `13-2.0.5`__
__ https://github.com/pganalyze/libpg_query/blob/13-latest/CHANGELOG.md#13-205---2021-06-24_
3.0 (2021-06-04)
~~~~~~~~~~~~~~~~
- Fix glitch in the ``RawStream``, avoiding spurious space after an open parenthesis
- Improve the ``Visitor`` class, to make it easier altering the original tree
- Properly handle nested lists in the serialization of AST Node
3.0.dev2 (2021-05-22)
Fix bug in CreateStmt printer (issue #79__)
Make it possible to pass also concrete ast.Node\ s to ``RawStream```
**Breaking changes**
To reduce confusion, the printer module has been removed: print-specific stuff is now
directly exposed by the printers subpackage while serialization classes are now in the
new stream module
The default value for the safety_belt option of the printify() function is now
False
3.0.dev1 (2021-05-16)
- Fix ``AT_SetIdentity``, ``AT_EnableReplicaTrig`` and ``AlterSubscriptionStmt`` printers
- Improve ``AlterTSConfigType`` and ``IntoClause`` printers
- New generic "visitor pattern" (`issue #51`__) exemplified by a new
``referenced_relations()`` function (`issue #66`__)
__ https://github.com/lelit/pglast/issues/51
__ https://github.com/lelit/pglast/issues/66
- Refine printing of SQL comments
- Implement ``AlterExtensionStmt`` printer
3.0.dev0 (2021-05-03)
Expose the new pg_query_scan() function as parser.scan()
Expose the pg_query_parse() function as parser.parse_sql_json()
Expose the new pg_query_parse_protobuf() function as parser.parse_sql_protobuf()
Expose the new pg_query_deparse_protobuf() function as parser.deparse_protobuf()
Honor the catalogname of a RangeVar if present (issue #71__)
Cover almost all SQL statements, testing against the whole PostgreSQL regression suite__ (issue #68, PR #72 and PR #77__), thanks to Ronan Dunklau and Hong Cheng
__ https://github.com/pganalyze/libpg_query/tree/13-latest/test/sql/postgres_regress_ __ https://github.com/lelit/pglast/issues/68 __ https://github.com/lelit/pglast/pull/72 __ https://github.com/lelit/pglast/pull/77
New rudimentary support for the preserve comments feature (issue #23__)
**Breaking changes**
Target PostgreSQL 13
The pglast.parser module exposes all libpg_query entry points, even the new
pg_query_deparse_protobuf() function that is basically equivalent to
RawStream\ -based printer
The split() function is now based on the lower level pg_query_split_with_xxx()
functions
The parse_sql() function returns native Python objects, not a JSON string as before:
all PG nodes are now represented by subclasses of pglast.ast.Node, without exception,
even Expr and Value are there. The latter impacts on pglast.node.Scalar: for
example it now may contains a ast.Integer instance instead of a Python int
The pgpp --parse-tree output is a pprint__ represention of the AST, not a JSON
string as before
__ https://docs.python.org/3.9/library/pprint.html#pprint.pprint
The ParseError exception does not expose the location as an instance member anymore,
although its still there, as the second argument (ie .args[1]); furthermore, its value
now corresponds to the index in the original Unicode string, instead of the offset in the
UTF-8 representation passed to the underlying C function
Version 2 #########
2.0.dev3 (2021-02-20)
- Handle ``INCLUDE`` clause in ``IndexStmt`` (`PR #67`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/67
2.0.dev2 (2020-10-24)
fingerprint functionality from v1 (i.e. master) branch2.0.dev1 (2020-09-26)
- Require Python 3.6 or greater
- Handle ``ALTER TYPE .. RENAME VALUE`` in ``AlterEnumStmt`` (`PR #52`__), thanks to Ronan
Dunklau
__ https://github.com/lelit/pglast/pull/52
- Add support for Create / Alter / Drop PROCEDURE (`PR #48`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/48
- Use Ronan's fork__ of libpg_query, targeting PostgreSQL 12.1 (`PR #36`__)
__ https://github.com/rdunklau/libpg_query
__ https://github.com/lelit/pglast/pull/36
- Change get_postgresql_version() to return a ``(major, minor)`` tuple (`issue #38`__)
__ https://github.com/lelit/pglast/issues/38
- Handle ``ALTER TABLE ... ALTER COLUMN ... SET STORAGE ...``
- Handle PG12 materialized CTEs (`issue #57`)
- Support column numbers in ``ALTER INDEX`` (`PR #58`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/58
- Handle ``SET LOGGED`` and ``SET UNLOGGED`` in ``ALTER TABLE`` (`PR #59`__), thanks to Ronan
Dunklau
__ https://github.com/lelit/pglast/pull/59
- Handle ``ALTER TYPE ... RENAME`` (`PR #62`__), , thanks to Ronan
Dunklau
__ https://github.com/lelit/pglast/pull/62
Version 1
#########
1.18 (2021-06-01)
~~~~~~~~~~~~~~~~~
- Fix exclusion constraint printer (`issue #81`__)
__ https://github.com/lelit/pglast/issues/81
1.17 (2021-02-20)
~~~~~~~~~~~~~~~~~
- Fix the generic case in the ``RenameStmt`` printer
1.16 (2021-02-20)
~~~~~~~~~~~~~~~~~
- Promote to the *stable* state
- Move the job of building and uploading binary wheels from TravisCI to GitHub Actions
1.15 (2021-02-19)
~~~~~~~~~~~~~~~~~
- Fix ``IF EXISTS`` variant of ``RenameStmt`` printer (`PR #70`__), thanks to Jonathan
Mortensen
__ https://github.com/lelit/pglast/pull/70
- Update libpg_query to 10-1.0.5
1.14 (2020-10-24)
~~~~~~~~~~~~~~~~~
- Produce Python 3.9 wheels, thanks to ``cibuildwheel`` 1.6.3
- Expose the ``libpg_query``'s `fingerprint`__ functionality (`PR #64`__), thanks to Yiming
Wang
__ https://github.com/lfittl/libpg_query/wiki/Fingerprinting
__ https://github.com/lelit/pglast/pull/64
1.13 (2020-09-26)
~~~~~~~~~~~~~~~~~
- Handle ``SELECT FROM foo``
1.12 (2020-06-08)
~~~~~~~~~~~~~~~~~
- Double quote column names in the ``TYPE_FUNC_NAME_KEYWORDS`` set (`issue #55`__)
__ https://github.com/lelit/pglast/issues/55
- Possibly wrap ``SELECT`` in ``UNION``/``INTERSECT`` between parens, when needed
(`issue #55`__)
__ https://github.com/lelit/pglast/issues/55
1.11 (2020-05-08)
~~~~~~~~~~~~~~~~~
- Fix ``A_Expr`` printer, when ``lexpr`` is missing (`PR #54`__), thanks to Aiham
__ https://github.com/lelit/pglast/pull/54
- Support ``DISABLE ROW LEVEL SECURITY`` in ``AlterTableCmd`` (`PR #49`__), thanks to Ronan
Dunklau
__ https://github.com/lelit/pglast/pull/49
- Implement ``CreateOpClassStmt`` printer (`PR #47`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/47
1.10 (2020-01-25)
~~~~~~~~~~~~~~~~~
- Fix collation name printer (`PR #44`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/44
- Implement ``CreatePLangStmt`` printer (`PR #42`__), thanks to Bennie Swart
__ https://github.com/lelit/pglast/pull/42
- Fix privileges printer (`PR #41`__), thanks to Bennie Swart
__ https://github.com/lelit/pglast/pull/41
- Handle ``TRUNCATE`` event in ``CreateTrigStmt`` printer (`PR #40`__), thanks to Bennie Swart
__ https://github.com/lelit/pglast/pull/40
- Fix function body dollar quoting (`PR #39`__), thanks to Bennie Swart
__ https://github.com/lelit/pglast/pull/39
1.9 (2019-12-20)
~~~~~~~~~~~~~~~~
- Prettier ``INSERT`` representation
1.8 (2019-12-07)
~~~~~~~~~~~~~~~~
- Prettier ``CASE`` representation
- New option to emit a semicolon after the last statement (`issue #24`__)
__ https://github.com/lelit/pglast/issues/24
1.7 (2019-12-01)
~~~~~~~~~~~~~~~~
- Implement ``NotifyStmt`` printer
- Implement ``RuleStmt`` printer, thanks to Gavin M. Roy for his `PR #28`__
__ https://github.com/lelit/pglast/pull/28
- Fix ``RenameStmt``, properly handling object name
- Produce Python 3.8 wheels, thanks to `cibuildwheel`__ 1.0.0
__ https://github.com/joerick/cibuildwheel
- Support ``ALTER TABLE RENAME CONSTRAINT`` (`PR #35`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/35
1.6 (2019-09-04)
~~~~~~~~~~~~~~~~
- Fix issue with boolean expressions precedence (`issue #29`__)
__ https://github.com/lelit/pglast/issues/29
- Implement ``BitString`` printer
- Support ``LEAKPROOF`` option (`PR #31`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/31
- Support ``DEFERRABLE INITIALLY DEFERRED`` option (`PR #32`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/32
1.5 (2019-06-04)
~~~~~~~~~~~~~~~~
- Fix issue with ``RETURNS SETOF`` functions, a more general solution than the one proposed by
Ronan Dunklau (`PR #22`__)
__ https://github.com/lelit/pglast/pull/22
- Allow more than one empty line between statements (`PR #26`__), thanks to apnewberry
__ https://github.com/lelit/pglast/pull/26
1.4 (2019-04-06)
~~~~~~~~~~~~~~~~
- Fix wrap of trigger's WHEN expression (`issue #18`__)
__ https://github.com/lelit/pglast/issues/18
- Support for variadic functions (`PR #19`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/19
- Support ORDER / LIMIT / OFFSET for set operations (`PR #20`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/20
- Implement ``ConstraintsSetStmt`` and improve ``VariableSetStmt`` printers
1.3 (2019-03-28)
~~~~~~~~~~~~~~~~
- Support ``CROSS JOIN`` and timezone modifiers on time and timestamp datatypes (`PR #15`__),
thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/15
- Many new printers and several enhancements (`PR #14`__), thanks to Ronan Dunklau
__ https://github.com/lelit/pglast/pull/14
- Expose the package version as pglast.__version__ (`issue #12`__)
__ https://github.com/lelit/pglast/issues/12
1.2 (2019-02-13)
~~~~~~~~~~~~~~~~
- Implement new `split()` function (see `PR #10`__)
__ https://github.com/lelit/pglast/pull/10
- Implement ``BooleanTest`` printer (`issue #11`__)
__ https://github.com/lelit/pglast/issues/11
1.1 (2018-07-20)
~~~~~~~~~~~~~~~~
- No visible changes, but now PyPI carries binary wheels for Python 3.7.
1.0 (2018-06-16)
~~~~~~~~~~~~~~~~
.. important:: The name of the package has been changed from ``pg_query`` to ``pglast``, to
satisfy the request made by the author of ``libpg_query`` in `issue #9`__.
This affects both the main repository on GitHub, that from now on is
``https://github.com/lelit/pglast``, and the ReadTheDocs project that hosts the
documentation, ``http://pglast.readthedocs.io/en/latest/``.
I'm sorry for any inconvenience this may cause.
__ https://github.com/lelit/pglast/issues/9
0.28 (2018-06-06)
~~~~~~~~~~~~~~~~~
- Update libpg_query to 10-1.0.2
- Support the '?'-style parameter placeholder variant allowed by libpg_query (details__)
__ https://github.com/lfittl/libpg_query/issues/45
0.27 (2018-04-15)
~~~~~~~~~~~~~~~~~
- Prettier JOINs representation, aligning them with the starting relation
0.26 (2018-04-03)
~~~~~~~~~~~~~~~~~
- Fix cosmetic issue with ANY() and ALL()
0.25 (2018-03-31)
~~~~~~~~~~~~~~~~~
- Fix issue in the safety belt check performed by ``pgpp`` (`issue #4`__)
__ https://github.com/lelit/pglast/issues/4
0.24 (2018-03-02)
~~~~~~~~~~~~~~~~~
- Implement ``Null`` printer
0.23 (2017-12-28)
~~~~~~~~~~~~~~~~~
- Implement some other DDL statements printers
- New alternative style to print *comma-separated-values* lists, activated by a new
``--comma-at-eoln`` option on ``pgpp``
0.22 (2017-12-03)
~~~~~~~~~~~~~~~~~
- Implement ``TransactionStmt`` and almost all ``DROP xxx`` printers
0.21 (2017-11-22)
~~~~~~~~~~~~~~~~~
- Implement ``NamedArgExpr`` printer
- New alternative printers for a set of *special functions*, activated by a new
``--special-functions`` option on ``pgpp`` (`issue #2`__)
__ https://github.com/lelit/pglast/issues/2
0.20 (2017-11-21)
~~~~~~~~~~~~~~~~~
- Handle special de-reference (``A_Indirection``) cases
0.19 (2017-11-16)
~~~~~~~~~~~~~~~~~
- Fix serialization of column labels containing double quotes
- Fix corner issues surfaced implementing some more DDL statement printers
0.18 (2017-11-14)
~~~~~~~~~~~~~~~~~
- Fix endless loop due to sloppy conversion of command line option
- Install the command line tool as ``pgpp``
0.17 (2017-11-12)
~~~~~~~~~~~~~~~~~
- Rename printers.sql to printers.dml (**backward incompatibility**)
- List printer functions in the documentation, referencing the definition of related node type
- Fix inconsistent spacing in JOIN condition inside a nested expression
- Fix representation of unbound arrays
- Fix representation of ``interval`` data type
- Initial support for DDL statements
- Fix representation of string literals containing single quotes
0.16 (2017-10-31)
~~~~~~~~~~~~~~~~~
- Update libpg_query to 10-1.0.0
0.15 (2017-10-12)
~~~~~~~~~~~~~~~~~
- Fix indentation of boolean expressions in SELECT's targets (`issue #3`__)
__ https://github.com/lelit/pglast/issues/3
0.14 (2017-10-09)
~~~~~~~~~~~~~~~~~
- Update to latest libpg_query's 10-latest branch, targeting PostgreSQL 10.0 final
0.13 (2017-09-17)
~~~~~~~~~~~~~~~~~
- Fix representation of subselects requiring surrounding parens
0.12 (2017-08-22)
~~~~~~~~~~~~~~~~~
- New option ``--version`` on the command line tool
- Better enums documentation
- Release the GIL while calling libpg_query functions
0.11 (2017-08-11)
~~~~~~~~~~~~~~~~~
- Nicer indentation for JOINs, making OUTER JOINs stand out
- Minor tweaks to lists rendering, with less spurious whitespaces
- New option ``--no-location`` on the command line tool
0.10 (2017-08-11)
~~~~~~~~~~~~~~~~~
- Support Python 3.4 and Python 3.5 as well as Python 3.6
0.9 (2017-08-10)
~~~~~~~~~~~~~~~~
- Fix spacing before the $ character
- Handle type modifiers
- New option ``--plpgsql`` on the command line tool, just for fun
0.8 (2017-08-10)
~~~~~~~~~~~~~~~~
- Add enums subpackages to the documentation with references to their related headers
- New ``compact_lists_margin`` option to produce a more compact representation when possible
(see `issue #1`__)
__ https://github.com/lelit/pglast/issues/1
0.7 (2017-08-10)
~~~~~~~~~~~~~~~~
- Fix sdist including the Sphinx documentation
0.6 (2017-08-10)
~~~~~~~~~~~~~~~~
- New option ``--parse-tree`` on the command line tool to show just the parse tree
- Sphinx documentation, available online
0.5 (2017-08-09)
~~~~~~~~~~~~~~~~
- Handle some more cases when a name must be double-quoted
- Complete the serialization of the WindowDef node, handling its frame options
0.4 (2017-08-09)
~~~~~~~~~~~~~~~~
- Expose the actual PostgreSQL version the underlying libpg_query libray is built on thru a new
``get_postgresql_version()`` function
- New option `safety_belt` for the ``prettify()`` function, to protect the innocents
- Handle serialization of ``CoalesceExpr`` and ``MinMaxExpr``
0.3 (2017-08-07)
~~~~~~~~~~~~~~~~
- Handle serialization of ``ParamRef`` nodes
- Expose a ``prettify()`` helper function
0.2 (2017-08-07)
~~~~~~~~~~~~~~~~
- Test coverage at 99%
- First attempt at automatic wheel upload to PyPI, let's see...
0.1 (2017-08-07)
~~~~~~~~~~~~~~~~
- First release ("Hi daddy!", as my soul would tag it)
FAQs
PostgreSQL Languages AST and statements prettifier
We found that pglast demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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