我目前正在协助集成测试，以便将一个当前运行在mysql 5.5db上的应用程序迁移到mysql 5.7。我们遇到了与MySQL5.5中优化的功能相关的问题，通过将某些部分封装在只读事务中，运行速度提高了约30%，现在抛出以下错误：
错误代码：1792无法在只读事务中执行语句。
我在网上搜索了一下，没有找到任何解决办法。我知道MySQL5.6文档中添加了一个相关限制，其中提到：
在只读模式下，仍然可以使用dml语句更改用temporary关键字创建的表。与永久表一样，不允许使用ddl语句进行更改。”
这对我们来说是一个很大的限制，因为这些只读事务中的一些调用了创建临时表的存储过程，因此重写应用程序是不可行的，因为这种只读优化非常普遍。
本质上，我们希望找到一个解决方法或配置，我们可以调整，使下面的例子不给出一个只读错误。

START TRANSACTION READ only;
CREATE TEMPORARY TABLE IF NOT EXISTS table1 (account_id INT(10) UNSIGNED);
ROLLBACK;

事先创建表不是一个选项，如果需要，下面是mysql服务器会话变量。任何帮助都将不胜感激！
会话变量：

Variable_name   Value
auto_increment_increment    1
auto_increment_offset   1
autocommit  ON
automatic_sp_privileges ON
avoid_temporal_upgrade  OFF
back_log    80
basedir C:\\Program Files\\MySQL\\MySQL Server 5.7\\
big_tables  OFF
bind_address    *
binlog_cache_size   32768
binlog_checksum CRC32
binlog_direct_non_transactional_updates OFF
binlog_error_action ABORT_SERVER
binlog_format   ROW
binlog_group_commit_sync_delay  0
binlog_group_commit_sync_no_delay_count 0
binlog_gtid_simple_recovery ON
binlog_max_flush_queue_time 0
binlog_order_commits    ON
binlog_row_image    FULL
binlog_rows_query_log_events    OFF
binlog_stmt_cache_size  32768
binlog_transaction_dependency_history_size  25000
binlog_transaction_dependency_tracking  COMMIT_ORDER
block_encryption_mode   aes-128-ecb
bulk_insert_buffer_size 8388608
character_set_client    utf8
character_set_connection    utf8
character_set_database  utf8
character_set_filesystem    binary
character_set_results   utf8
character_set_server    utf8
character_set_system    utf8
character_sets_dir  C:\\Program Files\\MySQL\\MySQL Server 5.7\\share\\charsets\\
check_proxy_users   OFF
collation_connection    utf8_general_ci
collation_database  utf8_general_ci
collation_server    utf8_general_ci
completion_type NO_CHAIN
concurrent_insert   AUTO
connect_timeout 10
core_file   OFF
datadir C:\\ProgramData\\MySQL\\MySQL Server 5.7\\Data\\
date_format %Y-%m-%d
datetime_format %Y-%m-%d %H:%i:%s
default_authentication_plugin   mysql_native_password
default_password_lifetime   0
default_storage_engine  InnoDB
default_tmp_storage_engine  InnoDB
default_week_format 0
delay_key_write ON
delayed_insert_limit    100
delayed_insert_timeout  300
delayed_queue_size  1000
disabled_storage_engines    
disconnect_on_expired_password  ON
div_precision_increment 4
end_markers_in_json OFF
enforce_gtid_consistency    OFF
eq_range_index_dive_limit   200
error_count 0
event_scheduler OFF
expire_logs_days    0
explicit_defaults_for_timestamp OFF
external_user   
flush   OFF
flush_time  0
foreign_key_checks  ON
ft_boolean_syntax   "+ -><()~*:""""&|"
ft_max_word_len 84
ft_min_word_len 4
ft_query_expansion_limit    20
ft_stopword_file    (built-in)
general_log OFF
general_log_file    DESKTOP-11VS9FN.log
group_concat_max_len    1024
gtid_executed_compression_period    1000
gtid_mode   OFF
gtid_next   AUTOMATIC
gtid_owned  
gtid_purged 
have_compress   YES
have_crypt  NO
have_dynamic_loading    YES
have_geometry   YES
have_openssl    DISABLED
have_profiling  YES
have_query_cache    YES
have_rtree_keys YES
have_ssl    DISABLED
have_statement_timeout  YES
have_symlink    YES
host_cache_size 279
hostname    BLUEOA-LP005
identity    0
ignore_builtin_innodb   OFF
ignore_db_dirs  
init_connect    
init_file   
init_slave  
innodb_adaptive_flushing    ON
innodb_adaptive_flushing_lwm    10
innodb_adaptive_hash_index  ON
innodb_adaptive_hash_index_parts    8
innodb_adaptive_max_sleep_delay 150000
innodb_api_bk_commit_interval   5
innodb_api_disable_rowlock  OFF
innodb_api_enable_binlog    OFF
innodb_api_enable_mdl   OFF
innodb_api_trx_level    0
innodb_autoextend_increment 64
innodb_autoinc_lock_mode    1
innodb_buffer_pool_chunk_size   8388608
innodb_buffer_pool_dump_at_shutdown ON
innodb_buffer_pool_dump_now OFF
innodb_buffer_pool_dump_pct 25
innodb_buffer_pool_filename ib_buffer_pool
innodb_buffer_pool_instances    1
innodb_buffer_pool_load_abort   OFF
innodb_buffer_pool_load_at_startup  ON
innodb_buffer_pool_load_now OFF
innodb_buffer_pool_size 8388608
innodb_change_buffer_max_size   25
innodb_change_buffering all
innodb_checksum_algorithm   crc32
innodb_checksums    ON
innodb_cmp_per_index_enabled    OFF
innodb_commit_concurrency   0
innodb_compression_failure_threshold_pct    5
innodb_compression_level    6
innodb_compression_pad_pct_max  50
innodb_concurrency_tickets  5000
innodb_data_file_path   ibdata1:12M:autoextend
innodb_data_home_dir    
innodb_deadlock_detect  ON
innodb_default_row_format   dynamic
innodb_disable_sort_file_cache  OFF
innodb_doublewrite  ON
innodb_fast_shutdown    1
innodb_file_format  Barracuda
innodb_file_format_check    ON
innodb_file_format_max  Barracuda
innodb_file_per_table   ON
innodb_fill_factor  100
innodb_flush_log_at_timeout 1
innodb_flush_log_at_trx_commit  1
innodb_flush_method 
innodb_flush_neighbors  1
innodb_flush_sync   ON
innodb_flushing_avg_loops   30
innodb_force_load_corrupted OFF
innodb_force_recovery   0
innodb_ft_aux_table 
innodb_ft_cache_size    8000000
innodb_ft_enable_diag_print OFF
innodb_ft_enable_stopword   ON
innodb_ft_max_token_size    84
innodb_ft_min_token_size    3
innodb_ft_num_word_optimize 2000
innodb_ft_result_cache_limit    2000000000
innodb_ft_server_stopword_table 
innodb_ft_sort_pll_degree   2
innodb_ft_total_cache_size  640000000
innodb_ft_user_stopword_table   
innodb_io_capacity  200
innodb_io_capacity_max  2000
innodb_large_prefix ON
innodb_lock_wait_timeout    50
innodb_locks_unsafe_for_binlog  OFF
innodb_log_buffer_size  1048576
innodb_log_checksums    ON
innodb_log_compressed_pages ON
innodb_log_file_size    50331648
innodb_log_files_in_group   2
innodb_log_group_home_dir   .\\
innodb_log_write_ahead_size 8192
innodb_lru_scan_depth   1024
innodb_max_dirty_pages_pct  75
innodb_max_dirty_pages_pct_lwm  0
innodb_max_purge_lag    0
innodb_max_purge_lag_delay  0
innodb_max_undo_log_size    1073741824
innodb_monitor_disable  
innodb_monitor_enable   
innodb_monitor_reset    
innodb_monitor_reset_all    
innodb_old_blocks_pct   37
innodb_old_blocks_time  1000
innodb_online_alter_log_max_size    134217728
innodb_open_files   300
innodb_optimize_fulltext_only   OFF
innodb_page_cleaners    1
innodb_page_size    16384
innodb_print_all_deadlocks  OFF
innodb_purge_batch_size 300
innodb_purge_rseg_truncate_frequency    128
innodb_purge_threads    4
innodb_random_read_ahead    OFF
innodb_read_ahead_threshold 56
innodb_read_io_threads  4
innodb_read_only    OFF
innodb_replication_delay    0
innodb_rollback_on_timeout  OFF
innodb_rollback_segments    128
innodb_sort_buffer_size 1048576
innodb_spin_wait_delay  6
innodb_stats_auto_recalc    ON
innodb_stats_include_delete_marked  OFF
innodb_stats_method nulls_equal
innodb_stats_on_metadata    OFF
innodb_stats_persistent ON
innodb_stats_persistent_sample_pages    20
innodb_stats_sample_pages   8
innodb_stats_transient_sample_pages 8
innodb_status_output    OFF
innodb_status_output_locks  OFF
innodb_strict_mode  OFF
innodb_support_xa   ON
innodb_sync_array_size  1
innodb_sync_spin_loops  30
innodb_table_locks  ON
innodb_temp_data_file_path  ibtmp1:12M:autoextend
innodb_thread_concurrency   9
innodb_thread_sleep_delay   0
innodb_tmpdir   
innodb_undo_directory   .\\
innodb_undo_log_truncate    OFF
innodb_undo_logs    128
innodb_undo_tablespaces 0
innodb_use_native_aio   ON
innodb_version  5.7.22
innodb_write_io_threads 4
insert_id   0
interactive_timeout 28800
internal_tmp_disk_storage_engine    InnoDB
join_buffer_size    262144
keep_files_on_create    OFF
key_buffer_size 8388608
key_cache_age_threshold 300
key_cache_block_size    1024
key_cache_division_limit    100
keyring_operations  ON
large_files_support ON
large_page_size 0
large_pages OFF
last_insert_id  0
lc_messages en_US
lc_messages_dir C:\\Program Files\\MySQL\\MySQL Server 5.7\\share\\
lc_time_names   en_US
license GPL
local_infile    ON
lock_wait_timeout   31536000
log_bin OFF
log_bin_basename    
log_bin_index   
log_bin_trust_function_creators OFF
log_bin_use_v1_row_events   OFF
log_builtin_as_identified_by_password   OFF
log_error   .\\DESKTOP-11VS9FN.err
log_error_verbosity 3
log_output  FILE
log_queries_not_using_indexes   OFF
log_slave_updates   OFF
log_slow_admin_statements   OFF
log_slow_slave_statements   OFF
log_statements_unsafe_for_binlog    ON
log_syslog  ON
log_syslog_tag  
log_throttle_queries_not_using_indexes  0
log_timestamps  UTC
log_warnings    2
long_query_time 10
low_priority_updates    OFF
lower_case_file_system  ON
lower_case_table_names  1
master_info_repository  FILE
master_verify_checksum  OFF
max_allowed_packet  173741056
max_binlog_cache_size   1.84467E+19
max_binlog_size 1073741824
max_binlog_stmt_cache_size  1.84467E+19
max_connect_errors  100
max_connections 151
max_delayed_threads 20
max_digest_length   1024
max_error_count 64
max_execution_time  0
max_heap_table_size 70254592
max_insert_delayed_threads  20
max_join_size   1.84467E+19
max_length_for_sort_data    1024
max_points_in_geometry  65536
max_prepared_stmt_count 16382
max_relay_log_size  0
max_seeks_for_key   4294967295
max_sort_length 1024
max_sp_recursion_depth  0
max_tmp_tables  32
max_user_connections    0
max_write_lock_count    4294967295
metadata_locks_cache_size   1024
metadata_locks_hash_instances   8
min_examined_row_limit  0
multi_range_count   256
myisam_data_pointer_size    6
myisam_max_sort_file_size   1.07374E+11
myisam_mmap_size    1.84467E+19
myisam_recover_options  OFF
myisam_repair_threads   1
myisam_sort_buffer_size 8388608
myisam_stats_method nulls_unequal
myisam_use_mmap OFF
mysql_native_password_proxy_users   OFF
named_pipe  OFF
net_buffer_length   16384
net_read_timeout    30
net_retry_count 10
net_write_timeout   60
new OFF
ngram_token_size    2
offline_mode    OFF
old OFF
old_alter_table OFF
old_passwords   0
open_files_limit    6209
optimizer_prune_level   1
optimizer_search_depth  62
optimizer_switch    "index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on,index_condition_pushdown=on,mrr=on,mrr_cost_based=on,block_nested_loop=on,batched_key_access=off,materialization=on,semijoin=on,loosescan=on,firstmatch=on,duplicateweedout=on,subquery_materialization_cost_based=on,use_index_extensions=on,condition_fanout_filter=on,derived_merge=on"
optimizer_trace "enabled=off,one_line=off"
optimizer_trace_features    "greedy_search=on,range_optimizer=on,dynamic_range=on,repeated_subselect=on"
optimizer_trace_limit   1
optimizer_trace_max_mem_size    16384
optimizer_trace_offset  -1
parser_max_mem_size 1.84467E+19
performance_schema  ON
performance_schema_accounts_size    -1
performance_schema_digests_size 10000
performance_schema_events_stages_history_long_size  10000
performance_schema_events_stages_history_size   10
performance_schema_events_statements_history_long_size  10000
performance_schema_events_statements_history_size   10
performance_schema_events_transactions_history_long_size    10000
performance_schema_events_transactions_history_size 10
performance_schema_events_waits_history_long_size   10000
performance_schema_events_waits_history_size    10
performance_schema_hosts_size   -1
performance_schema_max_cond_classes 80
performance_schema_max_cond_instances   -1
performance_schema_max_digest_length    1024
performance_schema_max_file_classes 80
performance_schema_max_file_handles 32768
performance_schema_max_file_instances   -1
performance_schema_max_index_stat   -1
performance_schema_max_memory_classes   320
performance_schema_max_metadata_locks   -1
performance_schema_max_mutex_classes    210
performance_schema_max_mutex_instances  -1
performance_schema_max_prepared_statements_instances    -1
performance_schema_max_program_instances    -1
performance_schema_max_rwlock_classes   40
performance_schema_max_rwlock_instances -1
performance_schema_max_socket_classes   10
performance_schema_max_socket_instances -1
performance_schema_max_sql_text_length  1024
performance_schema_max_stage_classes    150
performance_schema_max_statement_classes    193
performance_schema_max_statement_stack  10
performance_schema_max_table_handles    -1
performance_schema_max_table_instances  -1
performance_schema_max_table_lock_stat  -1
performance_schema_max_thread_classes   50
performance_schema_max_thread_instances -1
performance_schema_session_connect_attrs_size   512
performance_schema_setup_actors_size    -1
performance_schema_setup_objects_size   -1
performance_schema_users_size   -1
pid_file    C:\\ProgramData\\MySQL\\MySQL Server 5.7\\Data\\BLUEOA-LP005.pid
plugin_dir  C:\\Program Files\\MySQL\\MySQL Server 5.7\\lib\\plugin\\
port    3306
preload_buffer_size 32768
profiling   OFF
profiling_history_size  15
protocol_version    10
proxy_user  
pseudo_slave_mode   OFF
pseudo_thread_id    503
query_alloc_block_size  8192
query_cache_limit   1048576
query_cache_min_res_unit    4096
query_cache_size    1048576
query_cache_type    OFF
query_cache_wlock_invalidate    OFF
query_prealloc_size 8192
rand_seed1  0
rand_seed2  0
range_alloc_block_size  4096
range_optimizer_max_mem_size    8388608
rbr_exec_mode   STRICT
read_buffer_size    8192
read_only   OFF
read_rnd_buffer_size    1
relay_log   
relay_log_basename  C:\\ProgramData\\MySQL\\MySQL Server 5.7\\Data\\BLUEOA-LP005-relay-bin
relay_log_index C:\\ProgramData\\MySQL\\MySQL Server 5.7\\Data\\BLUEOA-LP005-relay-bin.index
relay_log_info_file relay-log.info
relay_log_info_repository   FILE
relay_log_purge ON
relay_log_recovery  OFF
relay_log_space_limit   0
report_host 
report_password 
report_port 3306
report_user 
require_secure_transport    OFF
rpl_stop_slave_timeout  31536000
secure_auth ON
secure_file_priv    C:\\ProgramData\\MySQL\\MySQL Server 5.7\\Uploads\\
server_id   1
server_id_bits  32
server_uuid 215d32a3-5340-11e8-93c8-106530971942
session_track_gtids OFF
session_track_schema    ON
session_track_state_change  OFF
session_track_system_variables  "time_zone,autocommit,character_set_client,character_set_results,character_set_connection"
session_track_transaction_info  OFF
sha256_password_proxy_users OFF
shared_memory   OFF
shared_memory_base_name MYSQL
show_compatibility_56   OFF
show_create_table_verbosity OFF
show_old_temporals  OFF
skip_external_locking   ON
skip_name_resolve   OFF
skip_networking OFF
skip_show_database  OFF
slave_allow_batching    OFF
slave_checkpoint_group  512
slave_checkpoint_period 300
slave_compressed_protocol   OFF
slave_exec_mode IDEMPOTENT
slave_load_tmpdir   C:\\WINDOWS\\SERVIC~3\\NETWOR~1\\AppData\\Local\\Temp
slave_max_allowed_packet    1073741824
slave_net_timeout   60
slave_parallel_type DATABASE
slave_parallel_workers  0
slave_pending_jobs_size_max 16777216
slave_preserve_commit_order OFF
slave_rows_search_algorithms    "TABLE_SCAN,INDEX_SCAN"
slave_skip_errors   OFF
slave_sql_verify_checksum   ON
slave_transaction_retries   10
slave_type_conversions  
slow_launch_time    2
slow_query_log  ON
slow_query_log_file DESKTOP-11VS9FN-slow.log
socket  MySQL
sort_buffer_size    262144
sql_auto_is_null    OFF
sql_big_selects ON
sql_buffer_result   OFF
sql_log_bin ON
sql_log_off OFF
sql_mode    
sql_notes   ON
sql_quote_show_create   ON
sql_safe_updates    OFF
sql_select_limit    1.84467E+19
sql_slave_skip_counter  0
sql_warnings    OFF
ssl_ca  
ssl_capath  
ssl_cert    
ssl_cipher  
ssl_crl 
ssl_crlpath 
ssl_key 
stored_program_cache    256
super_read_only OFF
sync_binlog 1
sync_frm    ON
sync_master_info    10000
sync_relay_log  10000
sync_relay_log_info 10000
system_time_zone    AUS Eastern Standard Time
table_definition_cache  1400
table_open_cache    2000
table_open_cache_instances  16
thread_cache_size   10
thread_handling one-thread-per-connection
thread_stack    262144
time_format %H:%i:%s
time_zone   SYSTEM
timestamp   1527639658
tls_version "TLSv1,TLSv1.1"
tmp_table_size  15728640
tmpdir  C:\\WINDOWS\\SERVIC~3\\NETWOR~1\\AppData\\Local\\Temp
transaction_alloc_block_size    8192
transaction_allow_batching  OFF
transaction_isolation   REPEATABLE-READ
transaction_prealloc_size   4096
transaction_read_only   OFF
transaction_write_set_extraction    OFF
tx_isolation    REPEATABLE-READ
tx_read_only    OFF
unique_checks   ON
updatable_views_with_limit  YES
version 5.7.22-log
version_comment MySQL Community Server (GPL)
version_compile_machine x86_64
version_compile_os  Win64
wait_timeout    28800
warning_count   0

• /编辑1*/我们决定放弃MySQL5.5的只读优化，因为我们无法解决这个障碍。