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In all InnoDB row formats, the pointers or lengths stored in the record header can be at most 14 bits, that is, count up to 16383. In ROW_FORMAT=REDUNDANT, this limits the maximum possible record length to 16383 bytes. In other ROW_FORMAT, it could merely limit the maximum length of variable-length fields. When MySQL 5.7 introduced innodb_page_size=32k and 64k, the maximum record length was limited to 16383 bytes (I hope 16383, not 16384, to be able to distinguish from a record whose length is 0 bytes). This change is present in MariaDB Server 10.2. btr_cur_optimistic_update(): Restrict maximum record size to 16K-1 for REDUNDANT and 64K page size. dict_index_too_big_for_tree(): The maximum allowed record size is half a B-tree page or 16K(-1 for REDUNDANT) for 64K page size. convert_error_code_to_mysql(): Fix error message to print correct limits. my_error_innodb(): Fix error message to print correct limits. page_zip_rec_needs_ext() : record size was already restricted to 16K. Restrict REDUNDANT to 16K-1. rem0rec.h: Introduce REDUNDANT_REC_MAX_DATA_SIZE (16K-1) and COMPRESSED_REC_MAX_DATA_SIZE (16K). |
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| .. | ||
| dict0boot.cc | ||
| dict0crea.cc | ||
| dict0dict.cc | ||
| dict0load.cc | ||
| dict0mem.cc | ||
| dict0stats.cc | ||
| dict0stats_bg.cc | ||