https://stackoverflow.com/questions/31186414/error-cannot-execute-create-table-in-a-read-only-transaction How to add column if not exists on PostgreSQL WithPostgres 9.6this can be done using the optionif not exists ALTER TABLE table_name ADD COLUMN IF NOT EXISTS column_name INTEGER; https://...
awaitqueryInterface.addColumn('MyTable','new_col',{type:Sequelize.INTEGER,},{mustExist:false,// Prevents crashing if the column already exists); Using Postgres as a reference, the generated SQL would look like this: ALTERTABLE"MyTable"ADD COLUMN IF NOT EXISTS"new_col"; ...
如果ockroachdb/PostgreSQL中不存在Add Constraint，我该如何进行等价操作？这是PostgreSQL语法中的一种令人...
}` SQL Example: Simplified Query Example, focusing on the failing feature --Replace with your ACTUAL exampleALTERTABLEIF EXISTSusercenter.dict_surgeriesADD COLUMN IF NOT EXISTS operation_grade_id int8NULL; Software Information: JSqlParser version 4.7 ...
You can’t disable a not null constraint in Postgres, like you can do in Oracle. However, you can remove the not null constraint from a column and then re-add it to the column. Here’s a quick test case in four steps: Drop a demo table if it exists: ...
Claude, yes I think that the move to identity columns on Postgres made this feature even more desirable (e.g. #34131).comment:24 by Simon Charette, 12个月 ago FWIW someone was able to implement an IdentityField which is kind of the equivalent of GeneratedField if it supported AS ID...
If the above is seen as backwards incompatible, I will have to think of a way to get the old behavior back. This will likely come with a performance penalty, which is unfortunate as generating the column list is even currently somewhat slow for wide tables. The work can be found from ...
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column? +--- +init +(1 row) + +step s0_begin: BEGIN; +step s0_savepoint: SAVEPOINT sp1; +step s0_truncate: TRUNCATE tbl1; +step s1_checkpoint: CHECKPOINT; +step s1_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'skip-empty-xacts', '1'...
INSERT INTO "batched_background_migrations" ("created_at", "updated_at", "max_value", "batch_size", "sub_batch_size", "interval", "status", "job_class_name", "table_name", "column_name", "job_arguments", "total_tuple_count", "started_at", "gitlab_schema", "queued_migration_...