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[docs] CTAS on PostgreSQL needs commit to apply #8367

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Oct 17, 2019
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[docs] CTAS on PostgreSQL needs commit to apply #8367

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6b49ccc
[engine spec] Fix, CTAS needs commit to apply
dpgaspar Oct 10, 2019
f48292b
[docs] New, document need for PG to use autocommit for CTAS
dpgaspar Oct 13, 2019
1baec36
[docs] Fix, ident JSON example
dpgaspar Oct 13, 2019
dd48827
[docs] Fix, improve text
dpgaspar Oct 13, 2019
5d122bd
[docs] New, reference on installation
dpgaspar Oct 13, 2019
5974027
[docs] Fix, split big sentence
dpgaspar Oct 16, 2019
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3 changes: 3 additions & 0 deletions docs/installation.rst
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Expand Up @@ -579,6 +579,9 @@ object gets unpacked into the
while the ``metadata_params`` get unpacked into the
`sqlalchemy.MetaData <https://docs.sqlalchemy.org/en/rel_1_2/core/metadata.html#sqlalchemy.schema.MetaData>`_ call. Refer to the SQLAlchemy docs for more information.

.. note:: If your using CTAS on SQLLab and PostgreSQL
take a look at :ref:`ref_ctas_engine_config` for specific ``engine_params``.


Schemas (Postgres & Redshift)
-----------------------------
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19 changes: 19 additions & 0 deletions docs/sqllab.rst
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Expand Up @@ -122,3 +122,22 @@ database configuration:

Here, "version" should be the version of your Presto cluster. Support for this
functionality was introduced in Presto 0.319.

.. _ref_ctas_engine_config:

Create Table As (CTAS)
''''''''''''''''''''''

You can use ``CREATE TABLE AS SELECT ...`` statements on SQLLab. This feature can be toggled on
and off at the database configuration level.

Note that since ``CREATE TABLE..`` belongs to a SQL DDL category. Specifically on PostgreSQL, DDL is transactional,
this means that to properly use this feature you have to set ``autocommit`` to true on your engine parameters:

.. code-block:: json

{
...
"engine_params": {"isolation_level":"AUTOCOMMIT"},
...
}