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columns When the server crashes after a record stub has been inserted and before all its off-page columns have been written, the record will contain incomplete off-page columns after crash recovery. Such records may only be accessed at the READ UNCOMMITTED isolation level or when rolling back a recovered transaction in recv_recovery_rollback_active(). Skip these records at the READ UNCOMMITTED isolation level. TODO: Add assertions for checking the above assumptions hold when an incomplete BLOB is encountered. btr_rec_copy_externally_stored_field(): Return NULL if the field is incomplete. row_prebuilt_t::templ_contains_blob: Clarify what "BLOB" means in this context. Hint: MySQL BLOBs are not the same as InnoDB BLOBs. row_sel_store_mysql_rec(): Return FALSE if not all columns could be retrieved. Previously this function always returned TRUE. Assert that the record is not delete-marked. row_sel_push_cache_row_for_mysql(): Return FALSE if not all columns could be retrieved. row_search_for_mysql(): Skip records containing incomplete off-page columns. Assert that the transaction isolation level is READ UNCOMMITTED. rb://380 approved by Jimmy Yang |
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| .. | ||
| btr | ||
| buf | ||
| data | ||
| dict | ||
| dyn | ||
| eval | ||
| fil | ||
| fsp | ||
| fut | ||
| ha | ||
| handler | ||
| ibuf | ||
| include | ||
| lock | ||
| log | ||
| mach | ||
| mem | ||
| mtr | ||
| mysql-test/patches | ||
| os | ||
| page | ||
| pars | ||
| que | ||
| read | ||
| rem | ||
| row | ||
| scripts | ||
| srv | ||
| sync | ||
| thr | ||
| trx | ||
| usr | ||
| ut | ||
| ChangeLog | ||
| CMakeLists.txt | ||
| compile-innodb | ||
| compile-innodb-debug | ||
| COPYING | ||
| COPYING.Google | ||
| COPYING.Percona | ||
| COPYING.Sun_Microsystems | ||
| Doxyfile | ||
| ha_innodb.def | ||
| Makefile.am | ||
| plug.in | ||
| revert_gen.sh | ||
| setup.sh | ||