MySQL 8.0.40
Source Code Documentation
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#include <sql_lex.h>
Static Public Member Functions | |
static void * | operator new (size_t size) noexcept |
static void * | operator new (size_t size, MEM_ROOT *mem_root, const std::nothrow_t &arg=std::nothrow) noexcept |
static void | operator delete (void *ptr, size_t size) |
static void | operator delete (void *, MEM_ROOT *, const std::nothrow_t &) noexcept |
Static Public Member Functions inherited from Query_tables_list | |
static const char * | stmt_accessed_table_string (enum_stmt_accessed_table accessed_table) |
Additional Inherited Members | |
Public Types inherited from LEX | |
typedef Prealloced_array< plugin_ref, INITIAL_LEX_PLUGIN_LIST_SIZE > | Plugins_array |
Public Types inherited from Query_tables_list | |
enum | { START_SROUTINES_HASH_SIZE = 16 } |
enum | enum_lock_tables_state { LTS_NOT_LOCKED = 0 , LTS_LOCKED } |
Locking state of tables in this particular statement. More... | |
enum | enum_binlog_stmt_unsafe { BINLOG_STMT_UNSAFE_LIMIT = 0 , BINLOG_STMT_UNSAFE_SYSTEM_TABLE , BINLOG_STMT_UNSAFE_AUTOINC_COLUMNS , BINLOG_STMT_UNSAFE_UDF , BINLOG_STMT_UNSAFE_SYSTEM_VARIABLE , BINLOG_STMT_UNSAFE_SYSTEM_FUNCTION , BINLOG_STMT_UNSAFE_NONTRANS_AFTER_TRANS , BINLOG_STMT_UNSAFE_MULTIPLE_ENGINES_AND_SELF_LOGGING_ENGINE , BINLOG_STMT_UNSAFE_MIXED_STATEMENT , BINLOG_STMT_UNSAFE_INSERT_IGNORE_SELECT , BINLOG_STMT_UNSAFE_INSERT_SELECT_UPDATE , BINLOG_STMT_UNSAFE_WRITE_AUTOINC_SELECT , BINLOG_STMT_UNSAFE_REPLACE_SELECT , BINLOG_STMT_UNSAFE_CREATE_IGNORE_SELECT , BINLOG_STMT_UNSAFE_CREATE_REPLACE_SELECT , BINLOG_STMT_UNSAFE_CREATE_SELECT_AUTOINC , BINLOG_STMT_UNSAFE_UPDATE_IGNORE , BINLOG_STMT_UNSAFE_INSERT_TWO_KEYS , BINLOG_STMT_UNSAFE_AUTOINC_NOT_FIRST , BINLOG_STMT_UNSAFE_FULLTEXT_PLUGIN , BINLOG_STMT_UNSAFE_SKIP_LOCKED , BINLOG_STMT_UNSAFE_NOWAIT , BINLOG_STMT_UNSAFE_XA , BINLOG_STMT_UNSAFE_DEFAULT_EXPRESSION_IN_SUBSTATEMENT , BINLOG_STMT_UNSAFE_ACL_TABLE_READ_IN_DML_DDL , BINLOG_STMT_UNSAFE_CREATE_SELECT_WITH_GIPK , BINLOG_STMT_UNSAFE_COUNT } |
All types of unsafe statements. More... | |
enum | enum_stmt_accessed_table { STMT_READS_TRANS_TABLE = 0 , STMT_READS_NON_TRANS_TABLE , STMT_READS_TEMP_TRANS_TABLE , STMT_READS_TEMP_NON_TRANS_TABLE , STMT_WRITES_TRANS_TABLE , STMT_WRITES_NON_TRANS_TABLE , STMT_WRITES_TEMP_TRANS_TABLE , STMT_WRITES_TEMP_NON_TRANS_TABLE , STMT_ACCESS_TABLE_COUNT } |
Public Member Functions inherited from LEX | |
Query_block * | current_query_block () const |
void | assert_ok_set_current_query_block () |
void | set_current_query_block (Query_block *select) |
bool | is_explain () const |
bool | using_hypergraph_optimizer () const |
Whether the currently-running query should be (attempted) executed in the hypergraph optimizer. More... | |
void | set_using_hypergraph_optimizer (bool use_hypergraph) |
bool | locate_var_assignment (const Name_string &name) |
Locate an assignment to a user variable with a given name, within statement. More... | |
void | insert_values_map (Item_field *f1, Field *f2) |
void | destroy_values_map () |
void | clear_values_map () |
bool | has_values_map () const |
std::map< Item_field *, Field * >::iterator | begin_values_map () |
std::map< Item_field *, Field * >::iterator | end_values_map () |
bool | is_ignore () const |
void | set_ignore (bool ignore_param) |
void | set_has_udf () |
bool | has_udf () const |
void | reset_has_external_tables () |
void | set_has_external_tables () |
bool | has_external_tables () const |
ulonglong | statement_options () |
Gets the options that have been set for this statement. More... | |
void | add_statement_options (ulonglong options) |
Add options to values of m_statement_options. More... | |
bool | is_broken () const |
void | mark_broken (bool broken=true) |
Certain permanent transformations (like in2exists), if they fail, may leave the LEX in an inconsistent state. More... | |
bool | check_preparation_invalid (THD *thd) |
Check whether preparation state for prepared statement is invalid. More... | |
void | cleanup (bool full) |
bool | is_exec_started () const |
void | set_exec_started () |
void | reset_exec_started () |
bool | is_exec_completed () const |
Check whether the statement has been executed (regardless of completion - successful or in error). More... | |
void | set_exec_completed () |
sp_pcontext * | get_sp_current_parsing_ctx () |
void | set_sp_current_parsing_ctx (sp_pcontext *ctx) |
bool | is_metadata_used () const |
Check if the current statement uses meta-data (uses a table or a stored routine). More... | |
bool | deny_window_function (Query_block *qb) const |
We have detected the presence of an alias of a window function with a window on query block qb. More... | |
LEX () | |
virtual | ~LEX () |
void | destroy () |
Destroy contained objects, but not the LEX object itself. More... | |
void | reset () |
Reset query context to initial state. More... | |
Query_block * | new_empty_query_block () |
Create an empty query block within this LEX object. More... | |
Query_block * | new_query (Query_block *curr_query_block) |
Create query expression object that contains one query block. More... | |
Query_block * | new_set_operation_query (Query_block *curr_query_block) |
Create query block and attach it to the current query expression. More... | |
bool | new_top_level_query () |
Create top-level query expression and query block. More... | |
void | new_static_query (Query_expression *sel_query_expression, Query_block *select) |
Create query expression and query block in existing memory objects. More... | |
Query_expression * | create_query_expr_and_block (THD *thd, Query_block *current_query_block, Item *where_clause, Item *having_clause, enum_parsing_context ctx) |
Create query expression under current_query_block and a query block under the new query expression. More... | |
bool | is_ps_or_view_context_analysis () |
bool | is_view_context_analysis () |
void | clear_execution () |
Clear execution state for a statement after it has been prepared or executed, and before it is (re-)executed. More... | |
void | set_uncacheable (Query_block *curr_query_block, uint8 cause) |
Set the current query as uncacheable. More... | |
void | set_trg_event_type_for_tables () |
Set the initial purpose of this Table_ref object in the list of used tables. More... | |
Table_ref * | unlink_first_table (bool *link_to_local) |
void | link_first_table_back (Table_ref *first, bool link_to_local) |
void | first_lists_tables_same () |
void | restore_cmd_properties () |
void | restore_properties_for_insert () |
bool | save_cmd_properties (THD *thd) |
bool | can_use_merged () |
check if command can use VIEW with MERGE algorithm (for top VIEWs) More... | |
bool | can_not_use_merged () |
Check if command can't use merged views in any part of command. More... | |
bool | need_correct_ident () |
bool | which_check_option_applicable () |
void | cleanup_after_one_table_open () |
bool | push_context (Name_resolution_context *context) |
void | pop_context () |
bool | copy_db_to (char const **p_db, size_t *p_db_length) const |
This method should be called only during parsing. More... | |
bool | copy_db_to (char **p_db, size_t *p_db_length) const |
Name_resolution_context * | current_context () |
void | reset_n_backup_query_tables_list (Query_tables_list *backup) |
void | restore_backup_query_tables_list (Query_tables_list *backup) |
bool | table_or_sp_used () |
bool | is_single_level_stmt () |
check if the statement is a single-level join More... | |
void | release_plugins () |
bool | accept (Select_lex_visitor *visitor) |
bool | set_wild (LEX_STRING) |
void | clear_privileges () |
bool | make_sql_cmd (Parse_tree_root *parse_tree) |
Uses parse_tree to instantiate an Sql_cmd object and assigns it to the Lex. More... | |
Secondary_engine_execution_context * | secondary_engine_execution_context () const |
Gets the secondary engine execution context for this statement. More... | |
void | set_secondary_engine_execution_context (Secondary_engine_execution_context *context) |
Sets the secondary engine execution context for this statement. More... | |
bool | is_replication_deprecated_syntax_used () |
void | set_replication_deprecated_syntax_used () |
bool | was_replication_command_executed () const |
void | set_was_replication_command_executed () |
bool | set_channel_name (LEX_CSTRING name={}) |
Set replication channel name. More... | |
void | set_rewrite_required () |
void | reset_rewrite_required () |
bool | is_rewrite_required () |
Public Member Functions inherited from Query_tables_list | |
Query_tables_list & | operator= (Query_tables_list &&)=default |
bool | is_query_tables_locked () const |
Query_tables_list ()=default | |
~Query_tables_list ()=default | |
void | reset_query_tables_list (bool init) |
void | destroy_query_tables_list () |
void | set_query_tables_list (Query_tables_list *state) |
void | add_to_query_tables (Table_ref *table) |
bool | requires_prelocking () |
void | mark_as_requiring_prelocking (Table_ref **tables_own_last) |
Table_ref * | first_not_own_table () |
void | chop_off_not_own_tables () |
bool | is_stmt_unsafe () const |
Determine if this statement is marked as unsafe. More... | |
bool | is_stmt_unsafe (enum_binlog_stmt_unsafe unsafe) |
void | set_stmt_unsafe (enum_binlog_stmt_unsafe unsafe_type) |
Flag the current (top-level) statement as unsafe. More... | |
void | set_stmt_unsafe_flags (uint32 flags) |
Set the bits of binlog_stmt_flags determining the type of unsafeness of the current statement. More... | |
uint32 | get_stmt_unsafe_flags () const |
Return a binary combination of all unsafe warnings for the statement. More... | |
bool | is_stmt_row_injection () const |
Determine if this statement is a row injection. More... | |
void | set_stmt_row_injection () |
Flag the statement as a row injection. More... | |
void | set_stmt_accessed_table (enum_stmt_accessed_table accessed_table) |
Sets the type of table that is about to be accessed while executing a statement. More... | |
bool | stmt_accessed_table (enum_stmt_accessed_table accessed_table) |
Checks if a type of table is about to be accessed while executing a statement. More... | |
bool | is_mixed_stmt_unsafe (bool in_multi_stmt_transaction_mode, bool binlog_direct, bool trx_cache_is_not_empty, uint tx_isolation) |
bool | uses_stored_routines () const |
true if the parsed tree contains references to stored procedures or functions, false otherwise More... | |
void | set_using_match () |
bool | get_using_match () |
void | set_stmt_unsafe_with_mixed_mode () |
bool | is_stmt_unsafe_with_mixed_mode () const |
Public Attributes inherited from LEX | |
Query_expression * | unit |
Outer-most query expression. More... | |
Query_block * | query_block |
First query block. More... | |
Query_block * | all_query_blocks_list |
List of all query blocks. More... | |
bool | is_explain_analyze = false |
LEX_STRING | name |
char * | help_arg |
char * | to_log |
const char * | x509_subject |
const char * | x509_issuer |
const char * | ssl_cipher |
String * | wild |
Query_result * | result |
LEX_STRING | binlog_stmt_arg |
Argument of the BINLOG event statement. More... | |
LEX_STRING | ident |
LEX_USER * | grant_user |
LEX_ALTER | alter_password |
enum_alter_user_attribute | alter_user_attribute |
LEX_STRING | alter_user_comment_text |
LEX_GRANT_AS | grant_as |
THD * | thd |
Opt_hints_global * | opt_hints_global |
Plugins_array | plugins |
Table_ref * | insert_table |
Table being inserted into (may be a view) More... | |
Table_ref * | insert_table_leaf |
Leaf table being inserted into (always a base table) More... | |
LEX_STRING | create_view_query_block |
SELECT of CREATE VIEW statement. More... | |
partition_info * | part_info |
LEX_USER * | definer |
List< LEX_USER > | users_list |
List< LEX_COLUMN > | columns |
List< LEX_CSTRING > | dynamic_privileges |
List< LEX_USER > * | default_roles |
ulonglong | bulk_insert_row_cnt |
List< Item > | purge_value_list |
List< Item > | kill_value_list |
List< set_var_base > | var_list |
List< Item_func_set_user_var > | set_var_list |
List< Item_param > | param_list |
List of placeholders ('?') for parameters of a prepared statement. More... | |
List< Name_resolution_context > | context_stack |
Item_sum * | in_sum_func |
udf_func | udf |
HA_CHECK_OPT | check_opt |
HA_CREATE_INFO * | create_info |
KEY_CREATE_INFO | key_create_info |
LEX_MASTER_INFO | mi |
LEX_SLAVE_CONNECTION | slave_connection |
Server_options | server_options |
USER_RESOURCES | mqh |
LEX_RESET_SLAVE | reset_slave_info |
ulong | type |
nesting_map | allow_sum_func |
This field is used as a work field during resolving to validate the use of aggregate functions. More... | |
nesting_map | m_deny_window_func |
Windowing functions are not allowed in HAVING - in contrast to grouped aggregate functions, since windowing in SQL logically follows after all grouping operations. More... | |
bool | m_subquery_to_derived_is_impossible |
If true: during prepare, we did a subquery transformation (IN-to-EXISTS, SOME/ANY) that doesn't currently work for subquery to a derived table transformation. More... | |
Sql_cmd * | m_sql_cmd |
bool | expr_allows_subquery {true} |
uint | reparse_common_table_expr_at |
If currently re-parsing a CTE's definition, this is the offset in bytes of that definition in the original statement which had the WITH clause. More... | |
bool | reparse_derived_table_condition {false} |
If currently re-parsing a condition which is pushed down to a derived table, this will be set to true. More... | |
std::vector< uint > | reparse_derived_table_params_at |
If currently re-parsing a condition that is being pushed down to a derived table, this has the positions of all the parameters that are part of that condition in the original statement. More... | |
enum SSL_type | ssl_type |
enum enum_duplicates | duplicates |
enum enum_tx_isolation | tx_isolation |
enum enum_var_type | option_type |
enum_view_create_mode | create_view_mode |
my_thread_id | show_profile_query_id |
QUERY ID for SHOW PROFILE. More... | |
uint | profile_options |
uint | grant |
uint | grant_tot_col |
bool | grant_privilege |
Set to true when GRANT ... GRANT OPTION ... TO ... is used (vs. More... | |
uint | slave_thd_opt |
uint | start_transaction_opt |
int | select_number |
Number of query block (by EXPLAIN) More... | |
uint8 | create_view_algorithm |
uint8 | create_view_check |
uint8 | context_analysis_only |
bool | drop_if_exists |
bool | grant_if_exists |
refers to optional IF EXISTS clause in REVOKE sql. More... | |
bool | ignore_unknown_user |
refers to optional IGNORE UNKNOWN USER clause in REVOKE sql. More... | |
bool | drop_temporary |
bool | autocommit |
bool | verbose |
bool | no_write_to_binlog |
bool | m_extended_show |
enum enum_yes_no_unknown tx_chain | tx_release |
bool | safe_to_cache_query |
Whether this query will return the same answer every time, given unchanged data. More... | |
st_parsing_options | parsing_options |
Alter_info * | alter_info |
LEX_CSTRING | prepared_stmt_name |
LEX_STRING | prepared_stmt_code |
bool | prepared_stmt_code_is_varref |
List< LEX_STRING > | prepared_stmt_params |
sp_head * | sphead |
sp_name * | spname |
bool | sp_lex_in_use |
bool | all_privileges |
bool | contains_plaintext_password |
enum_keep_diagnostics | keep_diagnostics |
uint32 | next_binlog_file_nr |
st_sp_chistics | sp_chistics |
Event_parse_data * | event_parse_data |
bool | only_view |
uint8 | create_view_suid |
const char * | stmt_definition_begin |
Intended to point to the next word after DEFINER-clause in the following statements: More... | |
const char * | stmt_definition_end |
bool | use_only_table_context |
During name resolution search only in the table list given by Name_resolution_context::first_name_resolution_table and Name_resolution_context::last_name_resolution_table (see Item_field::fix_fields()). More... | |
bool | is_lex_started |
bool | in_update_value_clause |
Set to true while resolving values in ON DUPLICATE KEY UPDATE clause. More... | |
class Explain_format * | explain_format |
ulong | max_execution_time |
bool | binlog_need_explicit_defaults_ts |
bool | will_contextualize |
Used to inform the parser whether it should contextualize the parse tree. More... | |
dd::info_schema::Table_statistics | m_IS_table_stats |
IS schema queries read some dynamic table statistics from SE. More... | |
dd::info_schema::Tablespace_statistics | m_IS_tablespace_stats |
Public Attributes inherited from Query_tables_list | |
enum_sql_command | sql_command |
SQL command for this statement. More... | |
Table_ref * | query_tables |
Table_ref ** | query_tables_last |
Table_ref ** | query_tables_own_last |
std::unique_ptr< malloc_unordered_map< std::string, Sroutine_hash_entry * > > | sroutines |
SQL_I_List< Sroutine_hash_entry > | sroutines_list |
Sroutine_hash_entry ** | sroutines_list_own_last |
uint | sroutines_list_own_elements |
enum_lock_tables_state | lock_tables_state |
uint | table_count |
Number of tables which were open by open_tables() and to be locked by lock_tables(). More... | |
Static Public Attributes inherited from Query_tables_list | |
static const int | BINLOG_STMT_UNSAFE_ALL_FLAGS |
This has all flags from 0 (inclusive) to BINLOG_STMT_FLAG_COUNT (exclusive) set. More... | |
static const int | binlog_stmt_unsafe_errcode [BINLOG_STMT_UNSAFE_COUNT] |
Maps elements of enum_binlog_stmt_unsafe to error codes. More... | |
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