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the maximum record size will never exceed the B-tree page size limit. For uncompressed tables, there should always be enough space for two records in an empty B-tree page. For compressed tables, there should be enough space for storing two node pointer records or one data record in an empty page in uncompressed format. dict_build_table_def_step(): Remove the inaccurate check for table row size. dict_index_too_big_for_tree(): New function: check if the index records would be too big for a B-tree page. dict_index_add_to_cache(): Add the parameter "strict". Invoke dict_index_too_big_for_tree() if it is set. trx_is_strict(), thd_is_strict(): New functions, for determining if innodb_strict_mode is enabled for the current transaction. dict_create_index_step(): Pass the new parameter strict of dict_index_add_to_cache() as trx_is_strict(trx). All other callers pass it as FALSE. innodb.test: Enable innodb_strict_mode before attempting to create a table with a too big record size. innodb-zip.test: Remove the test of inserting random data. Add tests for checking that the maximum record lengths are enforced at table creation time.