Add support for WHERE clause in copy_to methods
#941
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Whoops, just realized that I didn't request a review. @elprans, any chance you'd be able to take a look? |
elprans
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Aug 3, 2022
asyncpg/connection.py
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| @@ -846,6 +846,15 @@ async def copy_to_table(self, table_name, *, source, | |||
| :param str schema_name: | |||
| An optional schema name to qualify the table. | |||
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| :param str where: | |||
| An optional condition used to filter rows when copying. | |||
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I would clarify that this has to be a valid SQL expression.
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Minor fixes and improvements. Improvements ============ * Python 3.12 and PostgreSQL 16 support (#1084) (by @elprans in deea86c) * Add support for tuple-format custom codecs on composite types (#1061) (by @elprans in 922fcd1) * Support `target_session_attrs` in URL format, add tests (#1073) (by @elprans in 7cb4e70) * Infinity numeric support (#1067) (by @krokoziabla in 0c3bf60 for #1020) * Add support for the `WHERE` clause in `copy_to` methods (#941) (by @kaylynn234 in b7ffab6) * Add query logging callbacks and context manager (#1043) (by @dcwatson in b2697ff) Fixes ===== * When prepared statements are disabled, avoid relying on them harder (#1065) (by @elprans in cbf64e1) * Handle environments with HOME set to a not-a-directory (#1063) (by @elprans in af922bc) * Fix handling of non-ASCII passwords (#1062) (by @elprans in 89d5bd0) * Disable JIT while doing type introspection (#1082) (by @elprans in f21ebf6) * Remove connection parameter caching in `Pool` (#1053) (by @ermakov-oleg in 4ddb039) * Switch to Python 3.12-style `wait_for` (#1086) (by @elprans in 4bdd8a7) * Update automatic PostGIS type conversion for Shapely 2.0 (#1085) (by @ChimneySwift in 8b45beb) * Use the `timeout` context manager in the connection path (#1087) (by @elprans in 313b2b2) * Small fix for documentation on using SSL in Connection (#995) (by @ScottFred in ccc7baf) * Use cleanup_ctx in pool usage doc (#878) (by @ir4y in 70c8bd8) * Close cursor portals once the iterator is exhausted (#1088) (by @elprans in ca9f03b) * Cut BaseProtocol circular reference on close. (#1049) (by @pteromys in 93a6f79) * Allow passing hosts as tuples to `connect()` (in addition to lists) (#1021) (by @lezram in d7faaff) Other ===== * Drop support for Python 3.7 (#1064) (by @bryanforbes in 87ab143)
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Minor fixes and improvements. Improvements ============ * Python 3.12 and PostgreSQL 16 support (#1084) (by @elprans in deea86c) * Add support for tuple-format custom codecs on composite types (#1061) (by @elprans in 922fcd1) * Support `target_session_attrs` in URL format, add tests (#1073) (by @elprans in 7cb4e70) * Infinity numeric support (#1067) (by @krokoziabla in 0c3bf60 for #1020) * Add support for the `WHERE` clause in `copy_to` methods (#941) (by @kaylynn234 in b7ffab6) * Add query logging callbacks and context manager (#1043) (by @dcwatson in b2697ff) Fixes ===== * When prepared statements are disabled, avoid relying on them harder (#1065) (by @elprans in cbf64e1) * Handle environments with HOME set to a not-a-directory (#1063) (by @elprans in af922bc) * Fix handling of non-ASCII passwords (#1062) (by @elprans in 89d5bd0) * Disable JIT while doing type introspection (#1082) (by @elprans in f21ebf6) * Remove connection parameter caching in `Pool` (#1053) (by @ermakov-oleg in 4ddb039) * Switch to Python 3.12-style `wait_for` (#1086) (by @elprans in 4bdd8a7) * Update automatic PostGIS type conversion for Shapely 2.0 (#1085) (by @ChimneySwift in 8b45beb) * Use the `timeout` context manager in the connection path (#1087) (by @elprans in 313b2b2) * Small fix for documentation on using SSL in Connection (#995) (by @ScottFred in ccc7baf) * Use cleanup_ctx in pool usage doc (#878) (by @ir4y in 70c8bd8) * Close cursor portals once the iterator is exhausted (#1088) (by @elprans in ca9f03b) * Cut BaseProtocol circular reference on close. (#1049) (by @pteromys in 93a6f79) * Allow passing hosts as tuples to `connect()` (in addition to lists) (#1021) (by @lezram in d7faaff) Other ===== * Drop support for Python 3.7 (#1064) (by @bryanforbes in 87ab143)
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Hi there,
This PR closes issue #939, and adds support for a
whereparameter in thecopy_tofamily of methods. It is not a breaking change and will not affect existing code. Apologies for the delay - work has been pretty crazy the past couple days.There are a couple things I'm unsure of here and wanted to flag:
UnsupportedServerFeatureErrorwarranted? The existing exception types didn't seem like a good fit, but maybe this is too much of a special case to warrant its own.If anything here looks off, please let me know. Thanks!