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ab8f5e79ad
inserted, uncommitted clustered index records when determining if a secondary index record that contains a column prefix of an externally stored column is referencing the clustered index record. field_ref_zero[]: A BLOB pointer full of zero, for use in comparisons. btr_copy_externally_stored_field_prefix(): Assert that the BLOB pointer is set. row_ext_lookup_ith(), row_ext_lookup(), row_ext_lookup_low(): Document that field_ref_zero is returned when the BLOB cannot be fetched. row_ext_lookup_low(): Return field_ref_zero and *len = 0 when the BLOB pointer is unset. row_build_index_entry(): Return NULL when a needed BLOB pointer cannot be dereferenced (row_ext_lookup returns field_ref_zero). Check the return value for NULL in callers. row_vers_impl_x_locked_off_kernel(): Avoid comparisons when row_build_index_entry() returns NULL. row_vers_old_has_index_entry(): Ignore records for which row_build_index_entry() returns NULL. The entry should never be NULL in rollback, but it may be NULL in purge. row_merge_buf_add(): Assert that row_ext_lookup() does not return field_ref_zero. The table will be locked during index creation. |
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| .. | ||
| row0ext.c | ||
| row0ins.c | ||
| row0merge.c | ||
| row0mysql.c | ||
| row0purge.c | ||
| row0row.c | ||
| row0sel.c | ||
| row0uins.c | ||
| row0umod.c | ||
| row0undo.c | ||
| row0upd.c | ||
| row0vers.c | ||