Peter Eisentraut dd13ad9d39 Fix use of cursor sensitivity terminology ... Documentation and comments in code and tests have been using the terms sensitive/insensitive cursor incorrectly relative to the SQL standard. (Cursor sensitivity is only relevant for changes made in the same transaction as the cursor, not for concurrent changes in other sessions.) Moreover, some of the behavior of PostgreSQL is incorrect according to the SQL standard, confusing the issue further. (WHERE CURRENT OF changes are not visible in insensitive cursors, but they should be.) This change corrects the terminology and removes the claim that sensitive cursors are supported. It also adds a test case that checks the insensitive behavior in a "correct" way, using a change command not using WHERE CURRENT OF. Finally, it adds the ASENSITIVE cursor option to select the default asensitive behavior, per SQL standard. There are no changes to cursor behavior in this patch. Discussion: https://www.postgresql.org/message-id/flat/96ee8b30-9889-9e1b-b053-90e10c050e85%40enterprisedb.com		2021-04-07 08:05:55 +02:00
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src	Fix use of cursor sensitivity terminology	2021-04-07 08:05:55 +02:00
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