* Make index merge quick selects code allow perform several scans.
* Delay additional handler objects creation till row retrieval is started.
include/queues.h:
Added trivial queue_remove_all macro
mysql-test/r/index_merge.result:
Testcase for BUG#4177
mysql-test/t/index_merge.test:
Testcase for BUG#4177
sql/opt_range.cc:
Fix for BUG#4177:
* For any quick select, row retrieval can be performed several times. Now all index_merge quick selects code handles such cases properly.
* In QUICK_INDEX_MERGE_SELECT we use one handler object for all merged scans, and it was possible that in
destructor several cleanup functions were called
* Additionally
- Removed redundant QUICK_INDEX_MERGE_SELECT members.
- Now QUICK_ROR_*_SELECTs create additional handler objects only when row retrieval is started
So if join optimizer chooses other access method, we don't create/delete handlers.
Note: One sp.test still fails (prime), and rpl_server_id2.test fails (will be fixed by guilhem ASAP).
mysql-test/r/index_merge.result:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/r/index_merge_bdb.result:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/r/index_merge_innodb.result:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/r/index_merge_innodb2.result:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/r/rpl_server_id1.result:
Update result after merge.
mysql-test/r/sp-error.result:
Update result after merge.
mysql-test/r/variables.result:
Update result after merge.
mysql-test/t/index_merge.test:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/t/index_merge_bdb.test:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/t/index_merge_innodb.test:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/t/index_merge_innodb2.test:
Fixed syntax error (no ',' after last index in create table any more).
mysql-test/t/sp-error.test:
Post-merge fix of error codes.
sql/opt_range.cc:
Manually merged by Monty.
sql/opt_range.h:
Manually merged by Monty.
sql/slave.cc:
Post-merge fixes with some help from Guilhem.
sql/slave.h:
Post-merge fixes with some help from Guilhem.
sql/sp_head.cc:
Got rid of warning (reordering initialization).
sql/sql_parse.cc:
Post-merge fix: Need to set/reset select_limit at SP CALL time as well.
tests/client_test.c:
Post-merge fix: key_len length in explain has changed.
