diff options
author | bell@sanja.is.com.ua <> | 2005-06-14 22:45:48 +0300 |
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committer | bell@sanja.is.com.ua <> | 2005-06-14 22:45:48 +0300 |
commit | a78cc269472327e95c2c7ed0d233880a5207e373 (patch) | |
tree | 245f09eed7f3ce616ac752aa5162da8e79937ba0 | |
parent | f183b1be31213982199b37d2c0cfdb1732e32568 (diff) | |
download | mariadb-git-a78cc269472327e95c2c7ed0d233880a5207e373.tar.gz |
prohibit opening Query cache for SP cursors (BUG#9715)
-rw-r--r-- | mysql-test/r/query_cache.result | 29 | ||||
-rw-r--r-- | mysql-test/t/query_cache.test | 32 | ||||
-rw-r--r-- | sql/sp_head.h | 4 | ||||
-rw-r--r-- | sql/sp_rcontext.cc | 11 | ||||
-rw-r--r-- | sql/sp_rcontext.h | 6 |
5 files changed, 77 insertions, 5 deletions
diff --git a/mysql-test/r/query_cache.result b/mysql-test/r/query_cache.result index 385ac1f4dfb..506a76579ae 100644 --- a/mysql-test/r/query_cache.result +++ b/mysql-test/r/query_cache.result @@ -1007,4 +1007,33 @@ abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzab 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flush query cache; drop table t1, t2; +create table t1 (a int); +insert into t1 values (1),(2); +CREATE PROCEDURE `p1`() +begin +Declare c1 cursor for select a from t1; +open c1; +select * from t1; +end// +call p1()// +a +1 +2 +drop procedure p1; +create function f1() returns int +begin +Declare var1 int; +select max(a) from t1 into var1; +return var1; +end// +create procedure `p1`() +begin +select a, f1() from t1; +end// +call p1()// +a f1() +1 2 +2 2 +drop procedure p1// +drop table t1// set GLOBAL query_cache_size=0; diff --git a/mysql-test/t/query_cache.test b/mysql-test/t/query_cache.test index d4e3b95e4a2..88891bd3881 100644 --- a/mysql-test/t/query_cache.test +++ b/mysql-test/t/query_cache.test @@ -756,4 +756,36 @@ flush query cache; drop table t1, t2; +# +# SP cursors and selects with query cache (BUG#9715) +# +create table t1 (a int); +insert into t1 values (1),(2); + +delimiter //; +CREATE PROCEDURE `p1`() +begin +Declare c1 cursor for select a from t1; +open c1; +select * from t1; +end// +call p1()// +drop procedure p1; + +create function f1() returns int +begin +Declare var1 int; +select max(a) from t1 into var1; +return var1; +end// +create procedure `p1`() +begin + select a, f1() from t1; +end// +call p1()// +drop procedure p1// + +drop table t1// +delimiter ;// + set GLOBAL query_cache_size=0; diff --git a/sql/sp_head.h b/sql/sp_head.h index 49eabce246b..617d6622037 100644 --- a/sql/sp_head.h +++ b/sql/sp_head.h @@ -377,6 +377,10 @@ public: return (uint)m_lex->sql_command; } + void disable_query_cache() + { + m_lex->safe_to_cache_query= 0; + } private: LEX *m_lex; diff --git a/sql/sp_rcontext.cc b/sql/sp_rcontext.cc index 61cd7a9300f..aacb9254753 100644 --- a/sql/sp_rcontext.cc +++ b/sql/sp_rcontext.cc @@ -169,6 +169,17 @@ sp_rcontext::pop_cursors(uint count) * */ +sp_cursor::sp_cursor(sp_lex_keeper *lex_keeper) + :m_lex_keeper(lex_keeper), m_prot(NULL), m_isopen(0), m_current_row(NULL) +{ + /* + currsor can't be stored in QC, so we should prevent opening QC for + try to write results which are absent. + */ + lex_keeper->disable_query_cache(); +} + + /* pre_open cursor diff --git a/sql/sp_rcontext.h b/sql/sp_rcontext.h index 864dc3df146..b188805435f 100644 --- a/sql/sp_rcontext.h +++ b/sql/sp_rcontext.h @@ -203,11 +203,7 @@ class sp_cursor : public Sql_alloc { public: - sp_cursor(sp_lex_keeper *lex_keeper) - : m_lex_keeper(lex_keeper), m_prot(NULL), m_isopen(0), m_current_row(NULL) - { - /* Empty */ - } + sp_cursor(sp_lex_keeper *lex_keeper); virtual ~sp_cursor() { |