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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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traversing the index B-tree twice (first in BTR_WATCH_LEAF mode and then in BTR_DELETE mode), let BTR_DELETE take care of checking that the record can be purged, and either buffering or performing the purge. row_purge_poss_sec(): New function, to check if it is possible to purge a secondary index record. Refactored from row_purge_remove_sec_if_poss_low(). row_purge_remove_sec_if_poss_nonbuffered(): Rename to row_purge_remove_sec_if_poss_tree(). Remove the parameter mode (always use BTR_MODIFY_TREE). Use row_purge_poss_sec(). row_purge_remove_sec_if_poss_low(): Rename to row_purge_remove_sec_if_poss_leaf(). Remove the parameter mode (always use BTR_MODIFY_LEAF). Let row_search_index_entry() do all the hard work. btr_cur_t: Add purge_node, which will be needed by btr_cur_search_to_nth_level() for BTR_DELETE. Replace the flag value BTR_CUR_ABORTED with BTR_CUR_DELETE_REF and BTR_CUR_DELETE_FAILED. enum row_search_result, row_search_index_entry(): Replace ROW_NOT_IN_POOL with ROW_NOT_DELETED_REF and ROW_NOT_DELETED. btr_cur_search_to_nth_level(): Remove BTR_WATCH_LEAF. As a side effect, the adaptive hash index can be used in purge as well. If BTR_DELETE cannot be buffered, attempt btr_cur_optimistic_delete(). Either way, check row_purge_poss_sec(). Move the code to set cursor->ibuf_count to get rid of another if (height == 0) check. Eliminate the label loop_end. Do not call ibuf_should_try() twice. ibuf_should_try(): Now that the successful calls to this function will be halved, halve the magic constant that ibuf_flush_count will be compared to, accordingly. The changes regarding ibuf_should_try() were merged from branches/zip r3515. rb://60 approved by Heikki over IM |
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| btr | ||
| buf | ||
| data | ||
| dict | ||
| dyn | ||
| eval | ||
| fil | ||
| fsp | ||
| fut | ||
| ha | ||
| handler | ||
| ibuf | ||
| include | ||
| lock | ||
| log | ||
| mach | ||
| mem | ||
| mtr | ||
| mysql-test | ||
| os | ||
| page | ||
| pars | ||
| que | ||
| read | ||
| rem | ||
| row | ||
| scripts | ||
| srv | ||
| sync | ||
| thr | ||
| trx | ||
| usr | ||
| ut | ||
| win-plugin | ||
| ChangeLog | ||
| CMakeLists.txt | ||
| compile-innodb | ||
| compile-innodb-debug | ||
| ha_innodb.def | ||
| Makefile.am | ||
| plug.in | ||
| revert_gen.sh | ||
| setup.sh | ||