17 Commits (ade0130e67e88b9052d0dc4e76d48d98d3328485)

Author	SHA1	Message	Date
Rahim Kanji	42864e8867	Improved Tokenizer for PostgreSQL ... - Added `process_pg_typecast()` to handle PostgreSQL type cast syntax (::) - Recognizes type casts in various contexts: 'value'::type, column::type, etc. - Added `process_array_literal()` for PostgreSQL array processing - Handles both ARRAY[] constructor and {} literal syntax - Processes multi-dimensional arrays and nested array structures - Added `process_literal_prefix_type()` for PostgreSQL prefixed literals - Processes E'' escape string constants with backslash escapes - Handles U&'' Unicode string literals with optional UESCAPE clauses - Supports x'' hex string literals and b'' bit string literals - Manages B'' bit strings and bytea literals (\\xDEADBEEF format) - Added `process_replace_boolean()` for boolean literal replacement - Replaces TRUE and FALSE literals with parameter placeholders - Maintains case-insensitive matching (true, True, TRUE, etc.) - Preserves boolean context in expressions and WHERE clauses	2 months ago
Rahim Kanji	895c814c77	Added utility functions to support pgsql query digest testing	3 months ago
Rahim Kanji	285fb1b4e1	Add PostgreSQL dialect support: dollar-quoted strings, identifier quoting, and dialect-specific comment rules ... This change introduces PostgreSQL-aware tokenization by adding support for dollar-quoted strings, PostgreSQL’s double-quoted identifiers, and its comment rules. The tokenizer now correctly parses $$…$$ and $tag$…$tag$, treats " as an identifier delimiter in PostgreSQL, disables MySQL-only # comments, and accepts -- as a comment starter without requiring a trailing space. All new behavior is fully isolated behind the dialect flag to avoid impacting MySQL parsing. Add PostgreSQL dollar-quoted strings * New parser state: st_dollar_quote_string. * Recognizes $$ … $$ and $tag$ … $tag$ sequences. * Tracks opening tag and searches for matching terminator. * Normalizes entire literal to ?. * Integrated into get_next_st() and stage_1_parsing().	3 months ago
Rahim Kanji	e723082a1b	Refactored Query Processor Architecture ... - Introduced separate query processors for MySQL and PostgreSQL. - Removed unnecessary GTID logic from `PgSQL_Session`. - Added a command counter for PostgreSQL queries. - Refactored `Query_Processor` to serve as a base class containing core functionalities applicable to both MySQL and PostgreSQL. Changes: - Removed GTID-related code from `PgSQL_Logger` and `PgSQL_Session`: - bool with_gtid; - char gtid_buf[128]; - int gtid_hid; - Added new PostgreSQL-specific tables: - `pgsql_query_rules`, `pgsql_firewall_whitelist_rules`, `pgsql_query_rules_fast_routing` - `runtime_pgsql_query_rules`, `runtime_pgsql_firewall_whitelist_rules`, `runtime_pgsql_query_rules_fast_routing` - Added PostgreSQL-related variables: pgsql_thread___commands_stats pgsql_thread___query_digests pgsql_thread___query_digests_lowercase pgsql_thread___query_digests_no_digits pgsql_thread___query_digests_replace_null pgsql_thread___query_digests_normalize_digest_text pgsql_thread___query_digests_track_hostname pgsql_thread___query_digests_keep_comment pgsql_thread___query_digests_max_digest_length pgsql_thread___query_digests_max_query_length pgsql_thread___query_digests_grouping_limit pgsql_thread___query_digests_groups_grouping_limit pgsql_thread___enable_load_data_local_infile pgsql_thread___auditlog_filename pgsql_thread___auditlog_filesize pgsql_thread___eventslog_filename pgsql_thread___eventslog_filesize pgsql_thread___eventslog_default_log pgsql_thread___eventslog_format pgsql_thread___firewall_whitelist_errormsg pgsql_thread___firewall_whitelist_enabled pgsql_thread___query_processor_iterations pgsql_thread___query_processor_regex	1 year ago
René Cannaò	eb7a0e37f1	Moved legacy code away from c_tokenizer.cpp ... mysql_query_digest_and_first_comment() moved into c_tokenizer_legacy.cpp . c_tokenizer_legacy.cpp is present but not compiled, here for reference only.	2 years ago
Javier Jaramago Fernández	0426c49b77	Added digit replacement to second stage parsing, also added support for grouping and groups grouping	4 years ago
Javier Jaramago Fernández	c26d1a5034	Added new functions 'mysql_query_digest_and_first_comment_2' and 'mysql_query_digest_and_first_comment_one_it' as part of query digests rework	4 years ago
René Cannaò	a058d5cc9b	Support for KILL command #860 ... Both KILL QUERY and KILL CONNECTION work The only security check enforced is that the user sending the KILL is the same user of the connection/query being killed.	7 years ago
René Cannaò	fbd2f15efe	Memory Optimizations ... Try to allocate buffers in tokenizer() Optimized MySQL_ResultSet::buffer_to_PSarrayOut()	9 years ago
René Cannaò	a096164dd2	Various memory optimization	9 years ago
René Cannaò	45a5acd947	New variables to reduce memory footprint #766 #729 ... The 2 new variables are: * mysql-query_digests_max_digest_length : defines the maximum length of digest_text as reported in stats_mysql_query_digest * mysql-query_digests_max_query_length : defines the maximum query length processed when computing query's digest and digext_text	9 years ago
René Cannaò	caec52d23b	Increased QUERY_DIGEST_MAX_LENGTH ... from 7000 to 65000	10 years ago
René Cannaò	995203b6b3	Allocated buffer for first_comment only if needed ... Minor performance improvement to reduce the number of calls to malloc()	10 years ago
René Cannaò	4afebeb089	Upper limit of 7000 chars to query_digest	10 years ago
René Cannaò	c98a88f29b	Preparation to extract modifiers from comment (#166)	11 years ago
René Cannaò	125856ddf6	Implementing mysql_query_digest for real time query statistics	11 years ago
René Cannaò	3485228b71	Many changes ... - added some doc about global_variables - added c_tokenizer to tokenize C strings. Its first use is to split user/pass via c_split_2() Issue #127 - extensive work here , now Admin support its own global variables - commands available are: LOAD|SAVE ADMIN VARIABLES FROM|TO DISK|MEMORY|RUNTIME Issue #126 - username and password to access admin interface are now configurable in global_variables Issue #129 - started deprecating add_default_user(), deprecated by #126 Drafting Monitor interface : issue #130 Bug fixes: - fixed typo in SAVE MYSQL VARIABLES TO DISK;	11 years ago