1 | #ifndef READ_QUERY_INSTRUCTIONS 2 | #define READ_QUERY_INSTRUCTIONS 3 | 4 | /*************************************** 5 | $Revision: 1.32 $ 6 | 7 | Query instruction module (qi) 8 | config module. 9 | 10 | Status: NOT REVUED, NOT TESTED 11 | 12 | ******************/ /****************** 13 | Copyright (c) 1999,2000,2001,2002 RIPE NCC 14 | 15 | All Rights Reserved 16 | 17 | Permission to use, copy, modify, and distribute this software and its 18 | documentation for any purpose and without fee is hereby granted, 19 | provided that the above copyright notice appear in all copies and that 20 | both that copyright notice and this permission notice appear in 21 | supporting documentation, and that the name of the author not be 22 | used in advertising or publicity pertaining to distribution of the 23 | software without specific, written prior permission. 24 | 25 | THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 26 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL 27 | AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 28 | DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 29 | AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 30 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 31 | ***************************************/ 32 | #include "rxroutines.h" 33 | #include "iproutines.h" 34 | #include "mysql_driver.h" 35 | #include "query_command.h" 36 | #include "defs.h" 37 | #include "which_keytypes.h" 38 | 39 | #include "access_control.h" 40 | 41 | 42 | #include "ca_configFns.h" 43 | #include "ca_dictionary.h" 44 | #include "ca_macros.h" 45 | #include "ca_srcAttribs.h" 46 | 47 | /* 48 | --- snipped from http://www.tcx.se/Manual/manual.html --- 49 | 50 | 5.3 Functionality missing from MySQL 51 | 52 | The following functionality is missing in the current version of MySQL. For a prioritized list indicating when new extensions may be added to MySQL, you should consult the 53 | online MySQL TODO list. That is the latest version of the TODO list in this manual. See section F List of things we want to add to MySQL in the future (The TODO). 54 | 55 | 5.3.1 Sub-selects 56 | 57 | The following will not yet work in MySQL: 58 | 59 | SELECT * FROM table1 WHERE id IN (SELECT id FROM table2); 60 | SELECT * FROM table1 WHERE id NOT IN (SELECT id FROM table2); 61 | 62 | However, in many cases you can rewrite the query without a sub select: 63 | 64 | SELECT table1.* FROM table1,table2 WHERE table1.id=table2.id; 65 | SELECT table1.* FROM table1 LEFT JOIN table2 ON table1.id=table2.id where table2.id IS NULL 66 | 67 | For more complicated sub queries you can create temporary tables to hold the sub query. 68 | 69 | MySQL only supports INSERT ... SELECT ... and REPLACE ... SELECT ... Independent sub-selects will be probably be available in 3.24.0. You can now use the function IN() in other 70 | contexts, however. 71 | 72 | --- end snip --- 73 | 74 | Ie. Try using a LEFT JOIN to do the "NOT IN"/ "MINUS" equivalent. 75 | 76 | */ 77 | 78 | /* 79 | mysql optimizer is sometimes sub-optimal, 80 | therefore we force the join order with STRAIGHT_JOIN (MB, 2000/05/02) 81 | 82 | 83 | */ 84 | 85 | /* RIPE 6 */ 86 | #define Q_OBJECTS "SELECT last.object_id, last.sequence_id, last.object ,last.object_type FROM %s IDS STRAIGHT_JOIN last,object_order WHERE last.object_id=IDS.id AND last.object_type != 100 AND last.object_type = object_order.object_type ORDER BY ord87 | er_code" 88 | 89 | 90 | 91 | #define Q_REC "INSERT INTO %s SELECT pe_ro_id FROM %s IDS STRAIGHT_JOIN %s WHERE object_id = IDS.id" 92 | 93 | #if 0 94 | #define Q_NO_OBJECTS "SELECT object_id, sequence_id, object FROM last WHERE object_id = 0" 95 | #endif 96 | 97 | #define MAX_INSTRUCTIONS 100 98 | 99 | 100 | typedef struct Query_instruction_t { 101 | R_Type_t search_type; 102 | int queryindex;/* index into the Query table showing origin of this entry */ 103 | char *query_str; 104 | char *rx_keys; 105 | unsigned int rx_srch_mode; 106 | int rx_par_a; 107 | ip_space_t space; 108 | rx_fam_t family; 109 | } Query_instruction; 110 | 111 | typedef struct Query_instructions_t { 112 | Query_instruction *instruction[MAX_INSTRUCTIONS]; 113 | unsigned int filtered; 114 | unsigned int fast; 115 | unsigned int recursive; 116 | const Query_command *qc; /* pointer to the Query_command structure of this query */ 117 | } Query_instructions; 118 | 119 | 120 | er_ret_t QI_execute(ca_dbSource_t *dbhdl, Query_instructions *qis, Query_environ *qe, acc_st *acc_credit, acl_st *acl); 121 | void QI_free(Query_instructions *qis); 122 | Query_instructions *QI_new(const Query_command *qc, const Query_environ *qe); 123 | char *QI_queries_to_string(Query_instructions *qis); 124 | char *QI_fast_output(const char *str); 125 | 126 | #endif /* READ_QUERY_INSTRUCTIONS */