updated patch for BUG#4680 (incomplete DROP DATABASE breaking replication).
We binlog the DROP TABLE for each table that was actually dropped. Per Sergei's suggestion a fixed buffer for the DROP TABLE query is pre-allocated from THD pool, and logging now is done in batches - new batch is started if the buffer becomes full. Reduced memory usage by reusing the table list instead of accumulating a list of dropped table names. Also fixed the problem if the table was not actually dropped, eg due to permissions. Extended the test case to make sure batched query logging does work. mysql-test/r/rpl_drop_db.result: test for query buffer overrun mysql-test/t/rpl_drop_db.test: test for query buffer overrun sql/mysql_priv.h: updated patch for BUG#4680 (incomplete DROP DATABASE breaking replication) BitKeeper/etc/ignore: Added support-files/MacOSX/postflight support-files/MacOSX/preflight to the ignore list sql/sql_db.cc: updated patch for BUG#4680 (incomplete DROP DATABASE breaking replication) sql/sql_table.cc: updated patch for BUG#4680 (incomplete DROP DATABASE breaking replication) sql/table.h: updated patch for BUG#4680 (incomplete DROP DATABASE breaking replication)
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