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Nikolay TretyakandGitHub
87ea6512d4
<!-- Describe what has changed in this PR --> **What changed?** `Driver` interface (with two implementations) was added to the postgresql persistence package in order to support other drivers than `lib/pq`. Fixes https://github.com/temporalio/temporal/issues/1775 Essentially, this PR does https://github.com/temporalio/temporal/pull/4914 in a backward-compatible and extendable way <!-- Tell your future self why have you made these changes --> **Why?** Since `lib/pq` does not support multi-node clusters <!-- How have you verified this change? Tested locally? Added a unit test? Checked in staging env? --> **How did you test it?** Existing tests <!-- Assuming the worst case, what can be broken when deploying this change to production? --> **Potential risks** No, since you should explicitly change the driver in your config file. However, `connectAttributes` depend on the driver (e.g., `binary_parameters` is supported only by `lib/pq` and is not a part of postresql standard), so one should be careful changing drivers in production. <!-- Is this PR a hotfix candidate or require that a notification be sent to the broader community? (Yes/No) --> **Is hotfix candidate?** No
42 lines
1.5 KiB
Go
42 lines
1.5 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package driver
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import (
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"github.com/jmoiron/sqlx"
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)
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const (
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// check http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
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dupEntryCode = "23505"
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dupDatabaseCode = "42P04"
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)
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type Driver interface {
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CreateConnection(dsn string) (*sqlx.DB, error)
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IsDupEntryError(error) bool
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IsDupDatabaseError(error) bool
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}
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