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= New Features | ||
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* A pg_xmin_optimistic_locking plugin has been added. This plugin | ||
uses PostgreSQL's xmin system column to implement optimistic | ||
locking. The xmin system column is automatically updated whenever | ||
the database row is updated. You can load this plugin into a | ||
base model and have all models that subclass from it use optimistic | ||
locking, without needing any user-defined lock columns. | ||
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= Other Improvements | ||
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* set_column_allow_null is now a reversible migration method inside | ||
alter_table blocks. | ||
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* The use of ILIKE no longer forces the ESCAPE clause on PostgreSQL, | ||
which allows the use of ILIKE ANY and other constructions. There | ||
is no need to use the ESCAPE clause with ILIKE, because the value | ||
Sequel uses is PostgreSQL's default. | ||
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* The xid PostgreSQL type is now recognized as an integer type in the | ||
jdbc/postgresql adapter. |
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