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Change experimental_python_types to legacy_primitive_types. Invert lo… #308

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merged 1 commit into from
Jan 6, 2023
Merged

Change experimental_python_types to legacy_primitive_types. Invert lo… #308

merged 1 commit into from
Jan 6, 2023

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damian3031
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Description

Resolves #305
Change experimental_python_types to legacy_primitive_types. Invert logic behind interpreting this parameter.

Non-technical explanation

Release notes

( ) This is not user-visible or docs only and no release notes are required.
( ) Release notes are required, please propose a release note for me.
(x) Release notes are required, with the following suggested text:

* Change experimental_python_types to legacy_primitive_types. Invert logic behind interpreting this parameter. (#305 `issuenumber`)

@cla-bot cla-bot bot added the cla-signed label Dec 23, 2022
@damian3031 damian3031 requested review from mdesmet, hashhar, hovaesco and aalbu and removed request for hashhar December 23, 2022 15:08
mdesmet
mdesmet reviewed Dec 23, 2022
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README.md Outdated
@@ -456,7 +457,7 @@ import pytz
from datetime import datetime

conn = trino.dbapi.connect(
experimental_python_types=True,
legacy_primitive_types=False,
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This doesn't really make sense as this is the default. I would just remove this code fragment

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removed

tests/integration/test_dbapi_integration.py Outdated
@@ -211,7 +211,7 @@ def test_experimental_python_types_with_connection_and_cursor(
""")
rows = cur.fetchall()

if expected:
if not expected:
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Maybe it makes sense to rename expected into something more explicit, eg legacy_primitive_types_expected

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renamed to expected_legacy_primitive_types

tests/integration/test_dbapi_integration.py Outdated
@@ -231,7 +231,7 @@ def test_experimental_python_types_with_connection_and_cursor(


def test_decimal_query_param(trino_connection):
cur = trino_connection.cursor(experimental_python_types=True)
cur = trino_connection.cursor(legacy_primitive_types=False)
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Please omit the parameter as the default is tested in test_legacy_primitive_types_with_connection_and_cursor

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omitted

@damian3031 damian3031 force-pushed the enable-experimental_python_types-by-default branch from 898ad81 to 4653c60 Compare December 28, 2022 18:18
@damian3031 damian3031 force-pushed the enable-experimental_python_types-by-default branch from 4653c60 to fd28548 Compare December 28, 2022 18:53
mdesmet
mdesmet reviewed Dec 29, 2022
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README.md Outdated
@@ -116,7 +116,7 @@ engine = create_engine(
connect_args={
"session_properties": {'query_max_run_time': '1d'},
"client_tags": ["tag1", "tag2"],
"experimental_python_types": True,
"legacy_primitive_types": True,
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Remove these entries, these code parts tend to be copied by users and we would rather not let them set this to True.

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removed

README.md Outdated
@@ -126,7 +126,7 @@ engine = create_engine(
'trino://user@localhost:8080/system?'
'session_properties={"query_max_run_time": "1d"}'
'&client_tags=["tag1", "tag2"]'
'&experimental_python_types=true'
'&legacy_primitive_types=true'
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Same here.

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removed

README.md Outdated
@@ -135,7 +135,7 @@ engine = create_engine(URL(
host="localhost",
port=8080,
client_tags=["tag1", "tag2"],
experimental_python_types=True
legacy_primitive_types=True
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Same here

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removed

README.md Show resolved Hide resolved
@damian3031 damian3031 force-pushed the enable-experimental_python_types-by-default branch from fd28548 to 665f8d3 Compare December 30, 2022 09:49
@damian3031
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@hashhar would you have some time to look at this PR? Please approve if you are ok with these changes 🙂

hashhar
hashhar reviewed Jan 3, 2023
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Do we have any test with legacy_primitive_type=True for values which cannot be represented by Python types - just to make sure that the primitive code path doesn't use Python types anywhere at all.

The important cases I can think of are with parametric timestamps since the parsing logic uses Python types IIRC.

README.md Outdated
@@ -442,8 +439,9 @@ exits the *with* context and the queries succeed, otherwise

## Improved Python types
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Suggested change
## Improved Python types
## Legacy Primitive types

since this section now describes how to use the legacy behaviour.

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changed

README.md Show resolved Hide resolved
tests/integration/test_dbapi_integration.py Outdated Show resolved Hide resolved
@damian3031 damian3031 force-pushed the enable-experimental_python_types-by-default branch from 665f8d3 to eb72e00 Compare January 4, 2023 12:00
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@hashhar

Do we have any test with legacy_primitive_type=True for values which cannot be represented by Python types...

I've added it here (assertion here)

@damian3031 damian3031 force-pushed the enable-experimental_python_types-by-default branch from eb72e00 to b925efe Compare January 4, 2023 21:50
@damian3031 @hashhar
Make Python types the default and add legacy_primitive_types config
b0a9e0d 
This commit makes the behaviour of experimental_python_types enabled to
be the default.
It introduces a new connection parameter legacy_primitive_types which
can be enabled to restore the old default behaviour of type mapping.
@hashhar hashhar force-pushed the enable-experimental_python_types-by-default branch from b925efe to b0a9e0d Compare January 6, 2023 12:25
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hashhar commented Jan 6, 2023

Just reworded the commit message.

As a follow-up do you think we should add a table of what Trino types map to what Python types and vice-versa?

@hashhar hashhar merged commit 1dc80fb into trinodb:master Jan 6, 2023
@hashhar hashhar mentioned this pull request Jan 6, 2023
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@bitsondatadev bitsondatadev mentioned this pull request Jan 11, 2023
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@john-bodley john-bodley mentioned this pull request May 30, 2023
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@mdesmet mdesmet mdesmet approved these changes

@hashhar hashhar hashhar approved these changes

@hovaesco hovaesco hovaesco approved these changes

@aalbu aalbu Awaiting requested review from aalbu

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Enable experimental_python_types by default and change the name
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